Accenture Report Documentum 4i on NetApp filers Deployment Guide

Size: px
Start display at page:

Download "Accenture Report Documentum 4i on NetApp filers Deployment Guide"

Transcription

1 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide Documen Purpose This projec was conduced by Accenure o research & develop a Nework Appliance filer and Documenum 4i Deploymen Guide. This documen conains a summary of he findings of he projec. Addiional echnical and execuion deails can be found in he appendix documen. Documen Name: Accenure Repor: Documenum 4i on NeApp filers Deploymen Guide Addiional Relaed Documens: Execuive Summary: Documenum 4i on NeApp filers Deploymen Guide Execuive Summary Documenum 4i on NeApp filers Deploymen Guide Appendix

2 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide Conens 1.0 EXECUTIVE SUMMARY DEPLOYMENT GUIDE OVERVIEW DEPLOYMENT GUIDE OBJECTIVES WHO SHOULD USE THIS DEPLOYMENT GUIDE? DESCRIPTION OF KEY ELEMENTS OF DEPLOYMENT GUIDE DEPLOYMENT GUIDE CONFIGURATIONS GENERAL DEPLOYMENT GUIDELINES STANDARD TEST MEASUREMENT DIRECT-ATTACHED STORAGE NETAPP F840 FILER CONFIGURATION NEARSTORE R100 CONFIGURATION DOCUMENTUM 4I BACKUP USING SNAPSHOT DOCUMENTUM 4I DATA RECOVERY USING SNAPRESTORE DOCUMENTUM 4I BACKUP USING CYA HOTBACKUP DOCUMENTUM 4I OBJECT-LEVEL RECOVERY USING CYA HOTBACKUP DOCUMENTUM 4I MIRRORING FOR FAILOVER USING SNAPMIRROR DOCUMENTUM 4I FAILOVER USING CYA VIRTUAL STANDBY DOCUMENTUM 4I MIRRORING FOR FAILOVER USING NEARSTORE AND RSYNC DOCUMENTUM 4I DOCBASE LOAD PERFORMANCE ON NETAPP FILERS 28 Accenure Repor Page 2 of 29 Documenum 4i on NeApp filers Deploymen Guide

3 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide Lis of Figures FIGURE 1 DOCUMENTUM 4I BACKUP TIME DAS VS. FILER 5 FIGURE 2 - DOCUMENTUM 4I APPLICATION ARCHITECTURE 9 FIGURE 3 A CYA HOTBACKUP DEPLOYMENT 10 FIGURE 4 DOCUMENTUM 4I BACKUP CONFIGURATION 14 FIGURE 5 - AVERAGE TIME TO COMPLETE A FULL DATABASE AND APPLICATION DATA BACKUP 15 FIGURE 6 DOCUMENTUM 4I SNAPRESTORE CONFIGURATION 16 FIGURE 7 - FULL DATABASE AND APPLICATION DATA RESTORE 18 FIGURE 8 DOCUMENTUM 4I CYA HOTBACKUP CONFIGURATION 18 FIGURE 9 CYA SINGLE OBJECT RESTORE CONFIGURATION 20 FIGURE 10 MIRRORED TEST ENVIRONMENT USING SNAPMIRROR 22 FIGURE 11 MIRRORED TEST ENVIRONMENT WITH CYA VIRTUAL STANDBY 24 FIGURE 12 MIRRORED TEST ENVIRONMENT USING RSYNC 26 FIGURE 13 - NETAPP FILER-BASED DOCUMENTUM 4I ENVIRONMENT 28 FIGURE 14 - NETAPP FILER PERFORMANCE IMPACT ON DOCUMENT LOAD 29 Accenure Repor Page 3 of 29 Documenum 4i on NeApp filers Deploymen Guide

4 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 1.0 Execuive Summary Accenure is he world s leading managemen consuling and echnology services firm wih over 70,000 employees and 120 rained Documenum professionals in he field. An acive Accenure / Documenum Alliance offers soluions o help he Global 2000 manage criical informaion sored in disparae daabases housed in muliple formas such as: documens, ineracive web conen and mulimedia. Accenure has a decade of experience helping cliens across muliple indusries wih documen, web, digial asse, and enerprise conen managemen challenges. Accenure was engaged by Nework Appliance (NeApp) o research Daa Proecion and Business Coninuance sraegies for a Documenum 4i Conen Managemen applicaion inegraed ono a NeApp filer (nework sorage). Documenum Professional Services and CYA Technologies provided on-sie Documenum and CYA produc suppor for he duraion of he projec. This projec examined how NeApp sofware & hardware can be used in daa proecion and business coninuance scenarios. This projec deployed a es environmen ha simulaed he behavior of a large number of concurren users accessing a producion-ready Documenum 4i Conen Managemen applicaion wih NeApp filers hosing he Oracle daabase files and Documenum conen files. In ess run agains his es environmen Accenure was able o successfully inegrae a NeApp filer ino a producion-capaciy Documenum 4i applicaion environmen. Addiional resuls ha were recorded during his esing were: Performance NeApp filers reduced Documenum 4i business process ime by 18% when compared agains direc-aached sorage (DAS) arrays for documen load operaions (in he range of 500-5,000 documens). Scalabiliy In scalabiliy esing he DAS arrays experienced an addiional ime of 2% per ransacion while he filer ime increased by less han 1% when he documen load numbers were increased from 500 o 5,000, hus improving overall applicaion response ime for end users. Availabiliy In applicaion-level failover esing, Documenum 4i deploymens running agains NeApp filers were able o successfully fail over o a fully operaional, sandby environmen wihin as lile as 4 minues. Rapid Daa Backup In es scenarios, Snapsho was used o demonsrae a full 30GB Docbase backup in less han 6 seconds. Recoverabiliy In ess ha simulaed Documenum applicaion failure due o daabase corrupion, he NeApp and SnapMirror filer capabiliies alone faciliaed recovery in less han 4 minues. This included 3.2 seconds o recover he daabase using SnapResore, and 182 seconds for he daabase and Documenum applicaion o recover full hroughpu capaciy. The comparaive direc- aached sorage-based recovery scenario would have aken an esimaed 6 hours o complee. Accenure Repor Page 4 of 29 Documenum 4i on NeApp filers Deploymen Guide

5 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide Hours Cold / DAS Cold / filer Ho / DAS Ho / filer Figure 1 Documenum 4i Backup Time DAS vs. Filer Manageabiliy The NeApp filer was insalled, fully inegraed ino he es environmen and serving daa in less han 2.5 hours. The Deploymen Guide projec developed addiional configuraions based on CYA Technologies (CYA) and Open Source uiliies; Daa Proecion Single Objec Resore. Tes resuls validae he use of he NeApp filer as a file server for CYA HOTBackup backup ses in a Documenum 4i deploymen. Business Coninuance CYA Virual SandBy. Tes resuls validae he use of he NeApp filer and SnapMirror in a Disaser Recovery configuraion. SnapMirror was used o replicae CYA HOTBackup ses o an environmen running CYA Virual SandBy. Addiional configuraions validaed he use of SnapMirror alone o replicae daa o a passive backup environmen. Seamless Inegraion Remoe mirroring from DAS o filer using rsync. Tes resuls validae he use of he rsync uiliy o replicae a Docbase from non NeApp sorage (DAS) o NeApp sorage a a remoe locaion for failover and disaser recovery scenarios. Accenure Repor Page 5 of 29 Documenum 4i on NeApp filers Deploymen Guide

6 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 2.0 Deploymen Guide Overview 2.1 Deploymen Guide Objecives The objecive of he Deploymen Guide projec was o define and es muliple configuraions of a NeApp filer in a Documenum 4i producion-capaciy environmen. These configuraions were designed o provide organizaions ha have eiher implemened Documenum 4i or are considering migraing o Documenum 4i wih opions regarding daa sorage and overall applicaion archiecure design. Mos of he resuls of his projec could also be applied o organizaions ha are currenly employing he Documenum Enerprise Documen Managemen Sysem (EDMS) 98 applicaion or who plan o deploy he upcoming Documenum 5.x version. The objecives of he projec were achieved by developing and esing muliple configuraions of he sorage needs of a Documenum 4i Enerprise Conen Managemen (ECM) applicaion wihin a conrolled es environmen. This producion capaciy es environmen was esed wih a user load of up o 150 concurren users. Assuming a ypical 10-o-1 raio of regisered users o concurren users, his load was seleced o represen Documenum insallaions wih approximaely 1,500 regisered users. A subse of configuraions was devised o measure he performance impacs of inegraing a NeApp filer ino a producion-capaciy Documenum 4i deploymen. In order o achieve an objecive overview of he NeApp filer sorage soluion wihin he Documenum 4i applicaion archiecure, a represenaive direc-aached sorage (DAS) configuraion was creaed for hese performance measuremen configuraions. By using a comparaive poin of reference for hese configuraions i was possible o describe he applicaion archiecure differenials beween he sorage ypes. Anoher se of he configuraions was designed o demonsrae he feasibiliy of inegraing NeApp wih complemenary echnology deploymens in a capaciy Documenum 4i environmen. These configuraions esed he deploymen of a NeApp filer or he combinaion of NeApp filer wih complemenary sofware from CYA Technologies or open source resources, o address common Documenum 4i adminisraion issues. 2.2 Who Should Use This Deploymen Guide? The inended audiences for his Deploymen Guide documen are echnical archiecs from organizaions ha fall ino one of he following groups; Organizaions ha are planning on implemening Documenum 4i and need o undersand heir opions for using neworked sorage and/or DAS for differen aspecs of he Documenum 4i archiecure. Organizaions ha are migraing or are planning on migraing from Documenum EDMS 98 (or earlier) o Documenum 4i Organizaions ha have implemened (or are currenly implemening) Documenum 4i and ha need o undersand how o manage daabase files or large numbers of conen files. Organizaions using Documenum 4i ha wish o invesigae ways o reduce heir backup window, recover more quickly from daa corrupion, or explore disaser recovery soluions for Documenum. Sysem Inegraors and Consulans ha archiec or implemen Documenum sysems for cliens and wish o offer cliens sorage, backup, recovery and business coninuance soluions as par of a Documenum implemenaion. Page 6 of 29

7 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide Organizaions in hese groups could use he resuls of his sudy o undersand how o implemen NeApp filer echnologies wihin heir curren Documenum applicaion archiecures. This Deploymen Guide documen is no inended o ac as a sizing guide for hardware o be deployed wihin a Documenum applicaion environmen nor is i inended o be an exhausive review of he enire suie of Documenum 4i applicaion funcionaliy. Addiionally, he projec did no develop exensive uning and performance guidelines for he applicaions in he archiecure alhough basic vendor-supplied guidelines were followed. 2.3 Descripion of Key Elemens of Deploymen Guide Nework Appliance Soluion Overview Nework Appliance (NASDAQ: NTAP) is a recognized leader in enerprise sorage and he delivery of daa and conen on demand. NeApp soluions empower enerprises wih susainable compeiive advanage, improved profiabiliy, and faser ime-o-marke by exploiing unapped value in IT infrasrucures. Designed o enable enerprises o creae global daa managemen sraegies oday, NeApp sorage soluions ensure ha cusomers ge informaion where i's needed, when i's needed more efficienly, more effecively, and more reliably han wih any oher soluion available. NeApp soluions esed in his projec include he following: NeApp filers-- A robus, field-proven, highly available sorage soluion (>99.99% daa availabiliy) for consolidaing daa and simplifying daa managemen. NeApp filers are easy o manage appliances, specifically designed for oday's scalable, nework-cenric IT sysem archiecures. Designed for high performance, high availabiliy, and low oal cos of ownership (TCO), NeApp filers include inegraed RAID, a specialized appliance OS (Daa ONTAP ), a paened file sysem (WAFL ), redundan hardware componens, and opional clusering. NeApp filers are designed for soring boh daabase daa and conen files. NeApp NearSore -- NearSore appliances offer cos-effecive, fas-access sorage for online backup and archiving. NearSore is designed o offer secondary sorage for online backup, archiving, documen sorage and disaser recovery. NearSore offers he same OS, file sysem, RAID proecion and ease of managemen as NeApp filers, bu a a significanly lower cos. NeApp Snapsho -- NeApp Snapsho is an inegral par of each filer and NearSore appliance and can make insan, read-only copies of any volume or file sysem in seconds. Snapsho is designed o simplify and speed up daa backup operaions. NeApp SnapResore -- SnapResore allows a filer or NearSore appliance o rever a volume o an earlier poin in ime almos insanly, grealy simplifying and speeding up recovery from daa loss or daa corrupion. NeApp SnapMirror -- SnapMirror allows for simple, robus mirroring of daa from one NeApp appliance o anoher, across any disance and using sandard IP nework connecions. SnapMirror is designed o be used for backup consolidaion, remoe daa sharing and remoe replicaion of criical daa for disaser recovery purposes. Page 7 of 29

8 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide More informaion abou NeApp producs and soluions can be found a hp:// Documenum ECM Soluion Overview Documenum 4i is an Enerprise Conen Managemen (ECM) sysem for powering e-business applicaions, such as corporae porals. Documenum 4i manages conen o allow organizaions o effecively collaborae or share informaion wih cusomers, parners, and employees. Documenum 4i inegraes wih Cusomer Relaionship Managemen (CRM) sysems in he fron office and Enerprise Resource Planning (ERP) sysems in he back office o auomae and sreamline e-business applicaions. Documenum 4i also inegraes wih bes-of-breed commerce and applicaion servers o deliver conen o high-volume and high-inegriy Inerne sies. The Documenum 4i offering consiss of he following componens: Docbase - The Docbase is he underlying reposiory for conen. Muliple reposiories can be linked ogeher across logical and geographic boundaries o form a single, federaed conen reposiory. 4i Server - The server componen of he sysem handles communicaions beween he cliens and he Docbase. The server also manages he processing of scanned inpu, auo rendering, and inegraion poins. Documenum Foundaion Classes (DFC) - This componen is an objec-oriened API layer wrien in Java, which provides inerfaces o a variey of indusry-sandard languages and developer ools, including Java, VB, COM, C, and C++, as well as ASP and JSP echnology. This layer links he various Documenum 4i cliens o he services offered by he Documenum 4i server and enables easy inegraion wih oher sysems. Oher inerfaces, such as Documenum s iteam poral inerface, can also use he DFC o communicae wih he Documenum 4i Server. Developer Sudio - This componen is a GUI environmen used o develop DocApps, which consis of he business rules, workflow, documen lifecycles, and securiy for individual Docbases. The business rules are cenrally sored in a daa dicionary wihin he Documenum 4i server. Once developed, DocApps can be easily migraed beween Docbases, reducing implemenaion imes and lowering cos of ownership. Documenum 4i enables an organizaion s employees, suppliers, parners, and cusomers o collaborae, communicae, and share knowledge. The physical es environmen was consruced using a vanilla insallaion of he Documenum 4i ECM Soluion. No addiional configuraion changes were made o he applicaion and all users accessing he applicaion were Inrane Cliens making requess via RighSie. The overall archiecure of he Documenum 4i applicaion is shown in Figure 2; Page 8 of 29

9 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide Con en Con en Con en Con en Con en User Transacions Web Server / RighSie MS IIS Documenum RighSie DCTM 4i econen Server Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa Key = User Transacions Figure 2 - Documenum 4i Applicaion Archiecure The Documenum Enerprise Docbase was pre-populaed using he Documenum Connecion Pooling Benchmark Ki Documen Loader. Samples documens from he Documenum Connecion Pooling Benchmark Ki were used o populae he iniial es environmen Docbase. The Documenum es environmen ha was generaed using a random seeding of he following number of Documenum Objecs;.gif 45kb.hml 8kb.jpg 2kb.pdf 103kb.pp 129kb.x 4kb.doc 79kb.xml 8kb TOTAL DOCUMENTUM OBJECTS 650,000 Page 9 of 29

10 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide CYA Technologies, Inc. CYA HOTBackup, and Virual SandBy CYA Technologies provides applicaion-aware business coninuiy and disaser recovery for Documenum 4i cliens relian on mission-criical conen. CYA HOTBackup, he company's flagship produc, proecs he cross-references beween conen enabling he proecion of e- business processes and he expedied recovery from disaser, corrupion and/or accidenal deleion of informaion. CYA HOTBackup enables businesses in all indusries ha rely on mission-criical conen o mainain he inegriy and availabiliy of informaion criical o produciviy as well as cusomer and parner relaionships. CYA HOTBackup is an available recovery soluion ha allows an organizaion o roll back is reposiory o a specific poin-in-ime and resore eiher single or muliple objecs (even an enire reposiory). Mission-criical conen such as drug submissions, web pages, service agreemens and engineering documenaion is all sored wihin Documenum, and is ofen available on-line. This criical conen - wheher i's shared wih employees, parners, or consumers - needs o be backed up frequenly and in a manner ha enables quick objec-level resoraions of specific pages ha includes conen as well as all of he criical links and relaionships such as auhor, owner, annoaions, PDFs, ec. Figure 3 below shows illusraes a ypical CYA HOTBackup deploymen. Con en Con en Con en Con en Con en User Transacions Web Server / RighSie MS IIS Documenum RighSie CYA Resore GUI (sand-alone compo nen) CYA HOTBackup DCTM 4i econen Server Key Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) = User Transacions Gigabi Eherne sorage nework NeApp F840 Filer DCTM Conen Files Oracle Daabase Files CYA HOTBackup Backup Ses F I L E R V O L U M E Figure 3 A CYA HOTBackup deploymen Page 10 of 29

11 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide CYA Producs include: CYA HOTBackup Enerprise, Sandard & Limied Ediions incremenally backs up conen and relaionships allowing for objec-level, poin-in-ime and bach resoraion in a 24x7 environmen while performing daa inegriy checking. CYA Virual SandBy provides business coninuiy o enerprises by argeing a HOT sie and incremenally sending mission-criical informaion from a primary sever o secondary server a an alernae locaion. In he even of disaser CYA Virual SandBy enables he enerprise o quickly failover simply by changing an IP address. This projec used CYA HOTBackup Enerprise Ediion and Virual Sandby o provide Documenum 4i Daa Proecion and Business Coninuance deploymen scenarios. CYA Technologies offer oher producs for Documenum ha were no esed on his projec. For deails please visi he CYA Technologies websie a: hp:// Page 11 of 29

12 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 3.0 Deploymen Guide Configuraions 3.1 General Deploymen Guidelines This secion conains an overview of he applicaion archiecures ha were developed for he projec. Prior o he sar of each pair of configuraion ess he es environmen was inspeced o ensure ha he number and size of he daabase and oher files in he DAS and NAS environmens was equivalen. Addiional precauions were aken o ensure ha no addiional exernal facors influenced he oucomes of he es. These included; Monioring nework raffic before, during, and afer he es. Removal of nonessenial processing loads from all es environmen es equipmen. Ho & cold resars of all Microsof Operaing Sysem-dependen es environmen elemens. Free memory checks of all es environmen elemens a he sar of each es run. The objecive of hese configuraions was o esablish a blueprin for he implemenaion of a ypical Documenum 4i applicaion on a NeApp filer in a producion environmen. For he purposes of hese ess only he configuraion of he NeApp filer was capured. The deails of insalling he Documenum 4i applicaion, CYA Technologies sofware, Microsof Windows Load Balancing Sofware (WLBS) and he NeApp filer are conained in separae documenaion available from each respecive vendor (see Appendix for furher informaion on hese vendors). As a baseline comparison he performance measuremen configuraions, he Oracle daabase and Documenum 4i conen files were mouned on a local DAS array. Based on his configuraion, merics were capured ha described how he es environmen performed in boh neworked sorage and also direc-aached sorage (DAS) mode. The failover scenarios leverage he WLBS nework sofware. Nework failover saisics were derived from he benchmarking performed a Microsof on his sofware. For furher deails see: Microsof Library Sandard Tes Measuremen For each configuraion lised in his documen a sandard es measuremen was applied o he applicaion, while he es operaions were being performed, o simulae a live Documenum 4i environmen. The consised of he following iems; Iem Business Processes Users Timescale Descripion Documen Load, Documen Navigae, Documen View, Documen Modify A peak of 150 users was applied in wo ses of 75 users wih a simulaneous, coninual documen load process. The es run duraion varied wih business process and he configuraion. Merics were repored during imes of peak aciviy. Page 12 of 29

13 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide Direc-Aached Sorage The ess conduced during he Deploymen Guide projec uilized a direc-aached sorage (DAS) array for comparison purposes. This DAS array comprised he following hardware iems; Sun D240 Media Tray conneced o e x 18GB SCSI Ulra Wide/Fas PCI HD - Hosing Solaris OS and Oracle conrol and execuable files Sun D240 Media Tray conneced o e4800 DDS 4 Tape Drive Back-up and recovery of Oracle daa files, redo logs and index files Sun D1000 conneced o e x 18GB SCSI Ulra Wide/Fas HD - Hosing Oracle daa files Sun D1000 conneced o e x 18GB SCSI Ulra Wide/Fas HD - Hosing Documenum 4i Conen files Sun e x 18 GB FCAL Inernal sorage o he applicaion server for sorage of operaing sysem, Documenum 4i and CYA insallaions. Sun e250-2 x 18 GB SCSI Ulra Wide/Fas HD Inernal sorage o he sandby server for sorage of operaing sysem, Documenum 4i, Oracle, and CYA insallaions NeApp F840 Filer Configuraion Noe: All es configuraions used less han 50% of available sorage space on boh he F840 and NearSore R100. Model NeApp F840c OS Daa ONTAP Disk Shelves 1 x DS-14, 3 x FC9 FCAL(Copper) Disk Drives 35 x 72GB FC NIC Gigabi Eherne FC-AL Disk Adapers NearSore R100 Configuraion Noe: All es configuraions used less han 50% of available sorage space on boh he F840 and NearSore R100. Model R100 OS Daa ONTAP 6.2.R1 P1 Disk Shelves 7 x 12 Disk Drives 84 x 135 GB Maxor ATA NIC Gigabi Eherne (no used) / 100MB Page 13 of 29

14 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 3.2 Documenum 4i Backup Using Snapsho This series of ess was designed o idenify a NeApp filer configuraion ha could simplify he manageabiliy, and decrease he ime needed for rouine Documenum 4i backup operaions. The applicaion daa idenified for backup were he Daabase meadaa and log files and he Documenum 4i conen files. The basic configuraion of he Documenum 4i applicaion is illusraed below; Conen Conen Conen Conen Conen User Transacions Web Server / RighSie MS IIS Documenum RighSie DCTM 4i econen Server NeApp F840 Filer Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Gigabi Eherne sorage nework DCTM Conen Files Oracle Daabase Files S N A P S H O T Key = User Transacions Figure 4 Documenum 4i Backup Configuraion Objecive: The ypical scenario for prevening daa loss is defining a daa loss olerance and designing a backup plan ha ensures he daa loss olerance is enforced wih scheduled daa duplicaion. In addiion, he duraion of he backup process can affec how ofen backups are possible. The choice beween ho or cold backup is deermined by he downime olerance of an enerprise. This configuraion explores daa duplicaion in a simulaed Documenum 4i producion environmen wih an applicaion downime olerance allowing backups o be performed while he applicaion is in a quiescen sae and while he applicaion is acive and under load. Cold Backup Approach: Prior o each measuremen, he environmen was rese o a baseline image of a 30GB Docbase. The sandard es load was iniiaed for boh he DAS and NAS mode. The econen server and Daabase processes were quiesced. A cold backup measuremen was aken. Page 14 of 29

15 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide In he NAS configuraion he Oracle daa files, Oracle log files and Documenum conen files were sored on NFS volumes on he NeApp F840 filer. In he DAS configuraion, he Oracle daa files, Oracle log files and Documenum conen files were sored on a direc-aached SUN D1000 sorage array sriped mode, RAID 0 in order o provide he bes performance comparison. Ho Backup Approach: The Oracle daabase was se in Archive Log mode. Prior o each measuremen, he environmen was rese o a baseline image of a 30GB Docbase. The sandard es load was iniiaed for boh he DAS and NAS mode. The Daabase was pu ino ho backup mode and he meadaa, conen and log files were backed up o DAS or a filer. The daabase was hen reurned o a nominal sae. In he NAS configuraion he Oracle daa files, Oracle log files and Documenum conen files were sored on NFS volumes on he NeApp F840 filer. In he DAS configuraion, he Oracle daa files, Oracle log files and Documenum conen files were sored on wo direc-aached SUN D1000 sorage arrays in sriped mode, RAID 0 in order o provide he bes performance comparison. Key Findings: The resuls of his es show ha for ho and cold backup, a 30GB Documenum 4i Docbase on a NeApp filer archiecure using Snapsho experienced a large decrease in overall backup process ime for he Docbase and associaed daabase files when compared o he same Docbase hosed on a DAS array using a disk-o-disk copy. Using informaion provided by NeApp, Snapsho backups of Docbases larger han he 30GB esed would yield resuls wih approximaely he same backup ime as he 30GB Docbase esed, bu his informaion was no validaed during esing on his projec. The graph illusraed below shows he ime o complee a full cold backup of DB and applicaion daa Hours Cold / DAS Cold / filer Ho / DAS Ho / filer Figure 5 - Average Time o Complee a Full Daabase and Applicaion Daa Backup Page 15 of 29

16 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 3.3 Documenum 4i Daa Recovery Using SnapResore This series of ess was designed o idenify a NeApp filer configuraion ha could increase he performance and manageabiliy of rouine Documenum 4i daa recovery operaions and increase availabiliy by minimizing ime o recovery (TTR). The applicaion daa idenified for he recovery was backed-up daabase meadaa and log files and he Documenum 4i conen files. The basic configuraion of he Documenum 4i applicaion is illusraed below; Conen Conen Conen Conen Conen User Transacions Web Server / RighSie MS IIS Documenum RighSie DCTM 4i econen Server NeApp F840 Filer Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Gigabi Eherne sorage nework DCTM Conen Files Oracle Daabase Files S N A P R E S T O R E Key = User Transacions Figure 6 Documenum 4i SnapResore Configuraion Objecive: The ypical scenario for prevening daa loss is defining a daa loss olerance and designing a backup plan ha ensures he daa loss olerance is enforced wih scheduled daa duplicaion. The duraion of he backup process can govern he frequency ha he backup process is execued. In he even of unscheduled daa loss, daa resoraion can be addressed wih a variey of echniques. The echnique chosen for he resoraion process depends on he granulariy of he loss and he laency beween he backup and curren image. The Docbase adminisraor wih a large laency olerance may choose o perform periodic backup and rely on daabase recovery mechanisms in he case of daa loss evens. A Docbase adminisraor wih a smaller laency olerance may choose o perform more frequen full-backups and use full daabase resoraions in case of daa loss evens. This configuraion explores daa resoraion in a simulaed Documenum 4i producion environmen wih he demands for daa resoraion a he enire volume level, wih a large and small laency window olerance. Page 16 of 29

17 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide The full filer volume resore ime was measured agains he DAS array, bu no for he incremenal, small laency window recovery. As a baseline comparison for he full volume resoraion configuraion, he Oracle daabase and Documenum 4i conen files were mouned on a local DAS array. Based on his configuraion, merics were capured ha described how he es environmen performed in boh nework sorage and also direc-aached sorage (DAS) mode. Approach: Prior o each es configuraion, he environmen was rese o a baseline Docbase image of 30GB of conen files and 7GB of meadaa. The sandard es load was iniiaed for boh he DAS and NAS mode. The econen server and Daabase processes were quiesced, daa resored from an earlier backup and he ime required for resore was measured. The Oracle daabase was resared and mouned or, in he case of he small laency window ess, he daabase was rolled forward wih off-line log files. In he NAS configuraion he Oracle daa files, Oracle log files and Documenum conen files were sored on NFS volumes on he NeApp F840 filer. In he DAS configuraion, he Oracle daa files, Oracle log files and Documenum conen files were sored on a direc-aached SUN D1000 sorage array sriped mode, RAID 0 in order o provide he bes performance comparison. Key Findings: The resuls of his es show ha for a complee resore wih a large laency window, a 30GB Documenum 4i Docbase on a NeApp filer archiecure experienced a large decrease in overall resore process ime for he Docbase and associaed Daabase files when compared o he same Docbase hosed on a DAS array. In he case of daa loss or corrupion, SnapResore reduced he recovery ime for full volume resores, hus increasing overall applicaion availabiliy. Less ime off-line in he recovery process ranslaed o more availabiliy for user ransacions. Using informaion provided by NeApp, Snapsho backups of Docbases larger han he 30GB esed would yield resuls wih approximaely he same backup ime as he 30GB Docbase esed, bu his informaion was no validaed during esing on his projec. The graph below shows he ime o complee a full resore of he daabase and applicaion daa Hours DAS F840 filer Page 17 of 29

18 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide Figure 7 - Full Daabase and Applicaion Daa Resore 3.4 Documenum 4i Backup Using CYA HOTBackup This series of ess was designed o idenify a NeApp filer configuraion ha, deployed in conjuncion wih CYA HOTBackup, could increase he flexibiliy of rouine Documenum 4i backup operaions. NeApp Snapsho and SnapResore can reduce Documenum backup ime, bu canno resore individual objecs o he Docbase. Using CYA HOTBackup ogeher wih NeApp sorage furher reduces downime by allowing Documenum objec changes o be backed up and individual objecs resored while he Documenum sysem is acive and running. The applicaion daa idenified for backup was he Daabase meadaa and log files and he Documenum 4i conen files. The basic configuraion of he Documenum 4i applicaion is illusraed below; Con en Con en Con en Con en Con en User Transacions Web Server / RighSie MS IIS Documenum RighSie DCTM 4i econen Server NeApp F840 Filer CYA HOTBackup Docbroker Docbase econen Server EBS Gigabi Eherne sorage nework DCTM Conen Files Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Oracle Daabase Files Key = User Transacions CYA HOTBackup Backup Ses Figure 8 Documenum 4i CYA HOTBackup Configuraion Objecive: The ypical scenario for prevening daa loss is defining a daa loss olerance and designing a backup plan ha ensures he daa loss olerance is enforced wih scheduled daa duplicaion. This configuraion explores daa duplicaion in a simulaed Documenum 4i producion environmen wih an applicaion downime olerance dicaing backups o be performed while he applicaion is acive and under load. This scenario demonsraed objec-level resoraion. Objec-level resoraion provides Page 18 of 29

19 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide he Documenum 4i Adminisraor wih he resoraion conrol down o he single documen level, wihou impacing work in progress. Approach: Prior o each es configuraion, he environmen was rese o a baseline Docbase image of 30GB of conen files and 7GB of meadaa. The sandard es load was iniiaed for NAS mode. The CYA HOTBackup process was iniiaed; soring he CYA HOTBackup backup se files on NFS volumes on he NeApp F840 filer. A daa loss even was simulaed by deleing documens from he Docbase. The deleed objecs were resored using he filer-based CYA HOTBackup backup se. Key Findings: The duraion of he CYA HOTBackup updae process is Docbase-size and conen-change dependen. CYA HOTBackup provides a non inrusive, objec-level backup mechanism ha can resore deleed Documenum objecs wihou incurring any Documenum downime. The resuls of his es show he viabiliy of inegraing CYA HOTBackup and NeApp filer echnologies o deploy a configuraion offering objec-level resoraion capabiliies. Page 19 of 29

20 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 3.5 Documenum 4i Objec-level Recovery Using CYA HOTBackup This es was designed o idenify a NeApp filer configuraion ha could increase he performance and manageabiliy of rouine Documenum 4i daa recovery operaions and increase availabiliy by minimizing ime o recovery (TTR) using CYA Technologies soluions. The applicaion daa idenified for backup was he Daabase meadaa and log files and he Documenum 4i conen files. The basic configuraion of he Documenum 4i applicaion is illusraed below; Con en Con en Con en Con en Con en User Transacions Web Server / RighSie MS IIS Documenum RighSie CYA Resore GUI (sand-alone compo nen) CYA HOTBackup DCTM 4i econen Server Docbroker Docbase econen Server EBS Gigabi Eherne sorage nework NeApp F840 Filer DCTM Conen Files Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Oracle Daabase Files Key = User Transacions CYA HOTBackup Backup Ses Figure 9 CYA Single Objec Resore Configuraion Objecive: The ypical scenario for prevening daa loss is defining a daa loss olerance and designing a backup plan ha ensures he daa loss olerance is enforced wih scheduled daa duplicaion. This configuraion explores daa resoraion in a simulaed Documenum 4i producion environmen wih he applicaion downime olerance dicaing minimal impac o he acive applicaion. The acive and under load resore also required objec-level resoraion. Objec-level resoraion provides he Documenum 4i Adminisraor wih he resoraion conrol down o he single documen level, wihou impacing work in progress. Approach: Prior o each es configuraion, he environmen was rese o a baseline Docbase image of 30GB of conen files and 7GB of meadaa. The sandard es load was iniiaed for NAS mode. Page 20 of 29

21 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide The CYA HOTBackup process was iniiaed; which sored he backup-se files on NFS volumes on he NeApp F840 filer. A daa loss even was simulaed by deleing documens from he Docbase. The CYA HOTBackup resore capabiliy was used o resore he deleed objec conen file. Key Findings: Objec level resoraion provides documen-specific recovery. Work in progress is uncompromised when objec-level resoraion is used. The resuls of his es show he viabiliy of inegraing CYA HOTBackup and NeApp filer echnologies o deploy a configuraion offering objec-level resoraion capabiliies. Page 21 of 29

22 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 3.6 Documenum 4i Mirroring for Failover Using SnapMirror Disaser Recovery (DR) Documenum 4i configuraions can be creaed using a variey of echnologies and approaches. This configuraion explores sofware based DR configuraions using a SnapMirror and NeApp filer soluions for sorage. This configuraion uilizes a sraegy incorporaing a mirrored applicaion environmen wih no shared componens. Conen Conen Conen Conen Conen User Transacions Conen Conen Conen Conen Conen Web Server / RighSie Web Server / RighSie MS IIS Documenum Righ Sie MS IIS Documenum RighSie DCTM 4i econen Server NeApp F840 Filer NeApp NearSore R100 DCTM 4i econen Server Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Gigabi Eherne sorage nework DCTM Conen Files Oracle Daabase Files Remoe 100/10 Mb Eherne Connecion S n A p M i r r o r DCTM Conen Files Oracle Daabase Files 100Mb Eherne Connecion Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Key = User Transacions Figure 10 Mirrored Tes Environmen Using SnapMirror Objecive: The ypical scenario for prevening downime is defining a downime olerance and designing an applicaion archiecure ha ensures he downime olerance is enforced by use of redundancy and failover capabiliies. This configuraion explores failover capabiliies in a simulaed Documenum 4i producion environmen wih he applicaion downime olerance dicaing minimal impac o he acive applicaion. This configuraion explores acive/passive sraegies using SnapMirror o suppor he updae of a passive environmen, which can be failed over o in he even of a caasrophic failure. Some Documenum 4i deploymens may require he abiliy o coninue serving mission-criical conen afer experiencing he loss of a daa cener or oher sie-wide disaser. Such business coninuance scenarios ypically involve mirroring o a remoe, sandby Documenum 4i environmen. Failure can occur a many levels in he archiecure due o; Unplanned nework conneciviy ouages o any or all of he applicaion iers Unplanned power ouages o any or all of he applicaion iers Unplanned failure of he hardware/sofware on any or all of he applicaion iers Unplanned, sie-wide disaser ha desroys he primary daa cener In all of hese cases he applicaion should be resilien enough o coninue processing, wih minimal and in some cases virually no perceived applicaion downime. Approach: Page 22 of 29

23 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide This configuraion deployed a NearSore R100 sorage device as he backup sorage soluion. WLBS was used o provide a Web ier on a virual IP wih failover capabiliy. The Oracle daabase files and Documenum 4i conen was sored on a NeApp F840 filer. The daabase and conen files were mirrored on a one-minue inerval o a filer in he sandby environmen. During execuion of he sandard es suie a failure was simulaed and one of he Web servers was forced ino a quiescen sae. The SnapMirror link was broken and he sandby daabase and applicaion servers sared. The full applicaion load was hen direced o he second e-conen server for verificaion of failover. Key Findings: In ess conduced wih WLBS and SnapMirror, he complee failover ime was under 4 minues. Tes execuion validaed he viabiliy of he WLBS and SnapMirror configuraion. The applicaion performed nominally and ran under a verificaion load following he swich over o he sandby environmen. Mirroring conen and meadaa across machines requires ha he environmen on he machines be idenical in paricular, UNIX password files, daabase configuraion files, pahs, environmenal variables and kernel seings. Noe: Because his es simulaed a Documenum 4i failover scenario requiring only low concurren user load afer failover, boh he econen and daabase server were hosed on he same machine, which was significanly less powerful han he machines used in he primary environmen. Likewise, while he sandby Documenum configuraion sored boh conen and meadaa files on he R100, Nework Appliance does no recommend running Oracle (or any oher daabase) insances direcly from a NearSore R100 appliance. The R100 does no provide he same levels of performance and availabiliy as a sandard Nework Appliance enerprise filer and is no inended o suppor high-ransacion workloads. Failover scenarios ha require he abiliy o suppor higher workloads or run for exended periods of ime may require more powerful Documen 4i econen and/or daabase server hardware, muliple servers or SnapMirror replicaion o a Nework Appliance filer insead of a NearSore. In addiion, he WLBS soluion provides nework-level failover only. The requiremens of some Documenum deploymens migh require a more comprehensive failover soluion. Page 23 of 29

24 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 3.7 Documenum 4i Failover Using CYA Virual SandBy Disaser Recovery (DR) Documenum 4i configuraions can be creaed using a variey of echnologies and approaches. This configuraion explores sofware based Business Coninuance configuraions using a NeApp filer for sorage and mirroring capabiliy, and CYA Virual SandBy for objec-level mirroring and a virual acive environmen capabiliy. This configuraion sraegy uses wo sand-alone applicaions Conen Conen Conen Conen Conen User Transacions Conen Conen Conen Conen Conen Web Server / RighSie Web Server / RighSie MS IIS Documenum RighSie MS IIS Documenum RighSie DCTM 4i econen Server NeApp F840 Filer NeApp NearSore R100 DCTM 4i econen Server Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Gigabi Eherne sorage nework DCTM Conen Files Oracle Daabase Files Remoe 100/10 Mb Eherne Connecion S n A p M i r r o r DCTM Conen Files Oracle Daabase Files 100Mb Eherne Connecion Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) CYA HOTBackup Backup Ses Key = User Transacions CYA HOTBackup Backup Ses Figure 11 Mirrored Tes Environmen wih CYA Virual SandBy Objecive: The ypical scenario for prevening downime is defining a downime olerance and designing an applicaion archiecure ha ensures he downime olerance is enforced by use of redundancy and failover capabiliies. This configuraion explores failover capabiliies in a simulaed Documenum 4i producion environmen wih he applicaion down ime olerance dicaing minimal impac o he acive applicaion. This configuraion explores an acive/passive deploymen o demonsrae he feasibiliy of inegraing SnapMirror and CYA Virual SandBy echnologies o provide increased Business Coninuance capabiliies. Failure can occur a many levels in he archiecure due o; Unplanned nework conneciviy ouages o any or all of he applicaion iers Unplanned power ouages o any or all of he applicaion iers Unplanned failure of he hardware/sofware on any or all of he applicaion iers Unplanned, sie-wide disaser ha desroys he primary daa cener In all of hese cases he applicaion should be resilien enough o coninue processing, wih minimal and in some cases virually no perceived applicaion downime. Approach: This configuraion deployed a NearSore R100 sorage device as he backup sorage soluion. Page 24 of 29

25 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide In his es CYA HOTBackup was deployed o capure a ho image of he primary Documenum 4i environmen. SnapMirror was used o mirror he CYA HOTBackup backup se o he failover environmen and he CYA VSB process mainained an up-o-dae and acive sandby environmen. The SnapMirror link was broken and a failover induced via he CYA Virual SandBy GUI. Tes merics were aken from he es environmen o esablish he ime aken o fail over o he new environmen. The full applicaion load was hen direced o he second e-conen server for verificaion of failover. Key Findings: Tes execuion validaed he viabiliy of he WLBS, SnapMirror and CYA VSB configuraion. In ess conduced wih WLBS, SnapMirror and CYA Virual SandBy, he complee failover ime was under 3 minues for an environmen wih a ne change of 20 addiional documens. The applicaion performed nominally and ran under a verificaion load following he swich over o he CYAVSB environmen. I is necessary o synchronize he CYA HOTBackup process and he SnapMirror process o ensure he CYA HOTBackup process is complee before he backup se is mirrored o he Sandby environmen. Noe: Because his es simulaed a Documenum 4i failover scenario requiring only low concurren user load afer failover, boh he econen and daabase server were hosed on he same machine, which was significanly less powerful han he machines used in he primary environmen. Likewise, while he sandby Documenum configuraion sored boh conen and meadaa files on he R100, Nework Appliance does no recommend running Oracle (or any oher daabase) insances direcly from a NearSore R100 appliance. The R100 does no provide he same levels of performance and availabiliy as a sandard Nework Appliance enerprise filer and is no inended o suppor high-ransacion workloads. Failover scenarios ha require he abiliy o suppor higher workloads or run for exended periods of ime may require more powerful Documen 4i econen and/or daabase server hardware, muliple servers or SnapMirror replicaion o a Nework Appliance filer insead of a NearSore appliance. In addiion, he WLBS soluion provides nework-level failover only. The requiremens of some Documenum deploymens migh require a more comprehensive failover soluion. Page 25 of 29

26 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 3.8 Documenum 4i Mirroring for Failover Using NearSore and Rsync Disaser Recovery (DR) Documenum 4i configuraions can be creaed using a muliude of echnologies and approaches. This configuraion explores open-source, sofware-based DR configuraions using a uiliy called rsync (available a hp://samba.anu.edu.au/rsync/) and a NeApp filer for sorage. This configuraion is mos applicable o environmens wih significan invesmens in non NeApp sorage and can be used o bridge beween non NeApp sorage and NeApp sorage. This configuraion uilizes a sraegy incorporaing a mirrored applicaion environmen, and no shared componens. Conen Conen Conen Conen Conen User Transacions Conen Conen Conen Conen Conen Web Server / RighSie Web Server / RighSie MS IIS Documenum Righ Sie MS IIS Documenum RighSie DCTM 4i econen Server NeApp F840 Filer NeApp NearSore R100 DCTM 4i econen Server Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Gigabi Eherne sorage nework DCTM Conen Files Oracle Daabase Files R S Y N C H Remoe 100/10 Mb Eherne Connecion DCTM Conen Files Oracle Daabase Files 100Mb Eherne Connecion Docbroker Docbase econen Server EBS Daabase Server DCTM Meadaa (Oracle 8 RDBMS) Key = User Transacions Figure 12 Mirrored Tes Environmen Using rsync Objecive: The ypical scenario for prevening downime is defining a downime olerance and designing an applicaion archiecure ha ensures he downime olerance is enforced by use of redundancy and failover capabiliies. This configuraion explores failover capabiliies in a simulaed Documenum 4i producion environmen wih he applicaion downime olerance dicaing minimal impac o he acive applicaion and a heerogeneous sorage environmen. The rsync uiliy can be used o synchronize any wo mounable file sysems. This configuraion explores acive/passive sraegies o demonsrae he feasibiliy of using rsysnc o suppor he updae of a passive environmen using a filer for sorage, which can be failed over o in he even of a caasrophic failure. The NeApp SnapMirror echnology requires ha boh he mirror source and arges be NeApp filers or NearSore producs. Documenum 4i deploymens ha require Docbase mirroring from a non NeApp sorage soluion o a NeApp filer may use he following configuraion. Failure can occur a many levels in he archiecure due o; Unplanned nework conneciviy ouages o any or all of he applicaion iers Unplanned power ouages o any or all of he applicaion iers Unplanned failure of he hardware/sofware on any or all of he applicaion iers Unplanned, sie-wide disaser ha desroys he primary daa cener In all of hese cases he applicaion should be resilien enough o coninue processing, wih minimal and Page 26 of 29

27 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide in some case virually no perceived applicaion downime. Approach: This configuraion deployed a NearSore R100 sorage device as he backup sorage soluion. WLBS was used o provide a Web ier on a virual IP wih failover capabiliy. The Oracle daabase files and Documenum 4i conen were sored on a SUN D1000 sorage array sriped mode, RAID 0 in order o provide he bes performance comparison. The daabase and conen files were mirrored, using rsync, on a one-minue inerval o a filer in he failover environmen. During execuion of he sandard es suie one of he Web servers was forced ino a quiescen sae. The full applicaion load was hen direced o he second e-conen server for verificaion of failover. Key Findings: Tes execuion validaed he viabiliy of he WLBS, rsync configuraion. In ess conduced wih WLBS and rsync he complee failover ime was under 4 minues. The applicaion performed nominally and ran under a verificaion load following he swich over o he Sandby environmen. Using rsync o mirror conen and meadaa across machines requires ha he environmen on he machines be idenical, in paricular, UNIX password files, daabase configuraion files, pahs, environmenal variables and kernel seings. Using rsync o mirror o a filer requires he use of NFS mouns o he arge filer, ha is o say he server funcion of he rsync uiliy, which ransfers daa over sockes, canno be used wih a filer configuraion a his ime. Noe: Because his es simulaed a Documenum 4i failover scenario requiring only low concurren user load afer failover, boh he econen and daabase server were hosed on he same machine, which was significanly less powerful han he machines used in he primary environmen. Likewise, while he sandby Documenum configuraion sored boh conen and meadaa files on he R100, Nework Appliance does no recommend running Oracle (or any oher daabase) insances direcly from a NearSore R100 appliance. The R100 does no provide he same levels of performance and availabiliy as a sandard Nework Appliance enerprise filer and is no inended o suppor high-ransacion workloads. Failover scenarios ha require he abiliy o suppor higher workloads or run for exended periods of ime may require more powerful Documen 4i econen and/or daabase server hardware, muliple servers or SnapMirror replicaion o a Nework Appliance filer insead of a NearSore appliance. In addiion, he WLBS soluion provides nework-level failover only. The requiremens of some Documenum deploymens migh require a more comprehensive failover soluion. Page 27 of 29

28 Accenure Repor Documenum 4i on NeApp filers Deploymen Guide 3.9 Documenum 4i Docbase Load Performance on NeApp Filers As daa requiremens increase a a rapid pace, IT managers look for innovaive ways o leverage scarce resources and provide users wih reliable, high-performance access o informaion. They mus scale infrasrucures worldwide o provide users wih access anyime, anywhere. And hey mus proec he corporaion's daa as a corporae asse. The selecion of sorage soluion for he enerprise is a complex issue. In his configuraion he Documenum 4i applicaion was exercised agains a load process, simulaing a coninuous documen load. Conen Conen Conen Conen Conen User Transacions Web Server / RighSie MS IIS Documenum RighSie Sun D1000 Sorage Array DCTM 4i econen Server NeApp F840 Filer DCTM Conen Files PCI/S CSI Docbroker Docbase econen Server EBS Gigabi Eherne sorage nework DCTM Conen Files Daabase Server Oracle Daabase Files PCI /S CSI DCTM Meadaa (Oracle 8 RDBMS) Oracle Daabase Files Key = User Transacions Figure 13 - NeApp Filer-Based Documenum 4i Environmen Objecive: Slow sorage can have several impacs on applicaion performance; performance of backup operaions, he performance of applicaion response ime and he performance impacs of backup operaions on applicaion response imes. In addiion, slow sorage can miigae he value added by high-end server processors. The ypical scenario for addressing slow sorage is a combinaion of highend sorage soluions and RAID echnologies. This configuraion explores he performance impac of a NeApp filer-based environmen on Documen 4i applicaion performance. Approach: Page 28 of 29

Test - Accredited Configuration Engineer (ACE) Exam - PAN-OS 6.0 Version

Test - Accredited Configuration Engineer (ACE) Exam - PAN-OS 6.0 Version Tes - Accredied Configuraion Engineer (ACE) Exam - PAN-OS 6.0 Version ACE Exam Quesion 1 of 50. Which of he following saemens is NOT abou Palo Alo Neworks firewalls? Sysem defauls may be resored by performing

More information

Simple Network Management Based on PHP and SNMP

Simple Network Management Based on PHP and SNMP Simple Nework Managemen Based on PHP and SNMP Krasimir Trichkov, Elisavea Trichkova bsrac: This paper aims o presen simple mehod for nework managemen based on SNMP - managemen of Cisco rouer. The paper

More information

PART 1 REFERENCE INFORMATION CONTROL DATA 6400 SYSTEMS CENTRAL PROCESSOR MONITOR

PART 1 REFERENCE INFORMATION CONTROL DATA 6400 SYSTEMS CENTRAL PROCESSOR MONITOR . ~ PART 1 c 0 \,).,,.,, REFERENCE NFORMATON CONTROL DATA 6400 SYSTEMS CENTRAL PROCESSOR MONTOR n CONTROL DATA 6400 Compuer Sysems, sysem funcions are normally handled by he Monior locaed in a Peripheral

More information

Voltair Version 2.5 Release Notes (January, 2018)

Voltair Version 2.5 Release Notes (January, 2018) Volair Version 2.5 Release Noes (January, 2018) Inroducion 25-Seven s new Firmware Updae 2.5 for he Volair processor is par of our coninuing effors o improve Volair wih new feaures and capabiliies. For

More information

(10) Patent No.: US 6,931,558 Bl (57) ABSTRACT ~ :!j 304 ; OS. BMR. & TSM files needed at restore time. Boot ~II backed-up ~ 106

(10) Patent No.: US 6,931,558 Bl (57) ABSTRACT ~ :!j 304 ; OS. BMR. & TSM files needed at restore time. Boot ~II backed-up ~ 106 111111 1111111111111111111111111111111111111111111111111111111111111 US006931558Bl (12) Unied Saes Paen Jeffe e ai. (10) Paen No.: US 6,931,558 Bl (45) Dae of Paen: Aug. 16,2005 (54) COMPUTER RESTORATION

More information

The Impact of Product Development on the Lifecycle of Defects

The Impact of Product Development on the Lifecycle of Defects The Impac of Produc Developmen on he Lifecycle of Rudolf Ramler Sofware Compeence Cener Hagenberg Sofware Park 21 A-4232 Hagenberg, Ausria +43 7236 3343 872 rudolf.ramler@scch.a ABSTRACT This paper invesigaes

More information

MIC2569. Features. General Description. Applications. Typical Application. CableCARD Power Switch

MIC2569. Features. General Description. Applications. Typical Application. CableCARD Power Switch CableCARD Power Swich General Descripion is designed o supply power o OpenCable sysems and CableCARD hoss. These CableCARDs are also known as Poin of Disribuion (POD) cards. suppors boh Single and Muliple

More information

Location. Electrical. Loads. 2-wire mains-rated. 0.5 mm² to 1.5 mm² Max. length 300 m (with 1.5 mm² cable). Example: Belden 8471

Location. Electrical. Loads. 2-wire mains-rated. 0.5 mm² to 1.5 mm² Max. length 300 m (with 1.5 mm² cable). Example: Belden 8471 Produc Descripion Insallaion and User Guide Transiser Dimmer (454) The DIN rail mouned 454 is a 4channel ransisor dimmer. I can operae in one of wo modes; leading edge or railing edge. All 4 channels operae

More information

MOBILE COMPUTING 3/18/18. Wi-Fi IEEE. CSE 40814/60814 Spring 2018

MOBILE COMPUTING 3/18/18. Wi-Fi IEEE. CSE 40814/60814 Spring 2018 MOBILE COMPUTING CSE 40814/60814 Spring 2018 Wi-Fi Wi-Fi: name is NOT an abbreviaion play on Hi-Fi (high fideliy) Wireless Local Area Nework (WLAN) echnology WLAN and Wi-Fi ofen used synonymous Typically

More information

MOBILE COMPUTING. Wi-Fi 9/20/15. CSE 40814/60814 Fall Wi-Fi:

MOBILE COMPUTING. Wi-Fi 9/20/15. CSE 40814/60814 Fall Wi-Fi: MOBILE COMPUTING CSE 40814/60814 Fall 2015 Wi-Fi Wi-Fi: name is NOT an abbreviaion play on Hi-Fi (high fideliy) Wireless Local Area Nework (WLAN) echnology WLAN and Wi-Fi ofen used synonymous Typically

More information

Scheduling. Scheduling. EDA421/DIT171 - Parallel and Distributed Real-Time Systems, Chalmers/GU, 2011/2012 Lecture #4 Updated March 16, 2012

Scheduling. Scheduling. EDA421/DIT171 - Parallel and Distributed Real-Time Systems, Chalmers/GU, 2011/2012 Lecture #4 Updated March 16, 2012 EDA421/DIT171 - Parallel and Disribued Real-Time Sysems, Chalmers/GU, 2011/2012 Lecure #4 Updaed March 16, 2012 Aemps o mee applicaion consrains should be done in a proacive way hrough scheduling. Schedule

More information

Implementing Ray Casting in Tetrahedral Meshes with Programmable Graphics Hardware (Technical Report)

Implementing Ray Casting in Tetrahedral Meshes with Programmable Graphics Hardware (Technical Report) Implemening Ray Casing in Terahedral Meshes wih Programmable Graphics Hardware (Technical Repor) Marin Kraus, Thomas Erl March 28, 2002 1 Inroducion Alhough cell-projecion, e.g., [3, 2], and resampling,

More information

Po,,ll. I Appll I APP2 I I App3 I. Illll Illlllll II Illlll Illll Illll Illll Illll Illll Illll Illll Illll Illll Illll Illlll Illl Illl Illl

Po,,ll. I Appll I APP2 I I App3 I. Illll Illlllll II Illlll Illll Illll Illll Illll Illll Illll Illll Illll Illll Illll Illlll Illl Illl Illl Illll Illlllll II Illlll Illll Illll Illll Illll Illll Illll Illll Illll Illll Illll Illlll Illl Illl Illl US 20110153728A1 (19) nied Saes (12) Paen Applicaion Publicaion (10) Pub. No.: S 2011/0153728

More information

Overview of Board Revisions

Overview of Board Revisions s Sysem Overview MicroAuoBox Embedded PC MicroAuoBox II can be enhanced wih he MicroAuoBox Embedded PC. The MicroAuoBox EmbeddedPC is powered via he MicroAuoBox II power inpu connecor. Wih he common power

More information

Page 1. Key Points from Last Lecture Frame format. EEC173B/ECS152C, Winter Wireless LANs

Page 1. Key Points from Last Lecture Frame format. EEC173B/ECS152C, Winter Wireless LANs EEC173/ECS152C, Winer 2006 Key Poins from Las Lecure Wireless LANs 802.11 Frame forma 802.11 MAC managemen Synchronizaion, Handoffs, Power MAC mehods: DCF & PCF CSMA/CA wih posiive ACK Exponenial backoff

More information

FIELD PROGRAMMABLE GATE ARRAY (FPGA) AS A NEW APPROACH TO IMPLEMENT THE CHAOTIC GENERATORS

FIELD PROGRAMMABLE GATE ARRAY (FPGA) AS A NEW APPROACH TO IMPLEMENT THE CHAOTIC GENERATORS FIELD PROGRAMMABLE GATE ARRAY (FPGA) AS A NEW APPROACH TO IMPLEMENT THE CHAOTIC GENERATORS Mohammed A. Aseeri and M. I. Sobhy Deparmen of Elecronics, The Universiy of Ken a Canerbury Canerbury, Ken, CT2

More information

Provided by the author(s) and NUI Galway in accordance with publisher policies. Please cite the published version when available.

Provided by the author(s) and NUI Galway in accordance with publisher policies. Please cite the published version when available. Provided by he auhor(s) and NUI Galway in accordance wih publisher policies. Please cie he published version when available. Tile Conneciviy soluions o link a blueooh camera o he inerne Auhor(s) Ionas,

More information

Ins Net2 plus control unit

Ins Net2 plus control unit S ns 0 Server Link 00 0/00 Eherne End of Line Terminaion RS485 Nework xi -4V. Ins-30080 Ne plus conrol uni C auion: For DC readers y Inruder Ne plus O u pus r Powe DC Only Relay C onac E Buo n P SU/ Page

More information

I. INTRODUCTION. Keywords -- Web Server, Perceived User Latency, HTTP, Local Measuring. interchangeably.

I. INTRODUCTION. Keywords -- Web Server, Perceived User Latency, HTTP, Local Measuring. interchangeably. Evaluaing Web User Perceived Laency Using Server Side Measuremens Marik Marshak 1 and Hanoch Levy School of Compuer Science Tel Aviv Universiy, Tel-Aviv, Israel mmarshak@emc.com, hanoch@pos.au.ac.il 1

More information

Utility-Based Hybrid Memory Management

Utility-Based Hybrid Memory Management Uiliy-Based Hybrid Memory Managemen Yang Li Saugaa Ghose Jongmoo Choi Jin Sun Hui Wang Onur Mulu Carnegie Mellon Universiy Dankook Universiy Beihang Universiy ETH Zürich While he memory fooprins of cloud

More information

Hands on Lab Manual Coherence Introduction

Hands on Lab Manual Coherence Introduction Hands on Lab Manual Coherence Inroducion hp://www.oracle.com/echnework , YCPV VQ KORTQXG VJG RGTHQTOCPEG QH O[ CRRNKECVKQP &CP, EQR[ -CXC EQFG VQ CP +70/ (ZVGPUKQP", EQFGF KV VJKU YC[ +GTG U YJGTG [QW

More information

A Tool for Multi-Hour ATM Network Design considering Mixed Peer-to-Peer and Client-Server based Services

A Tool for Multi-Hour ATM Network Design considering Mixed Peer-to-Peer and Client-Server based Services A Tool for Muli-Hour ATM Nework Design considering Mied Peer-o-Peer and Clien-Server based Services Conac Auhor Name: Luis Cardoso Company / Organizaion: Porugal Telecom Inovação Complee Mailing Address:

More information

PLASTIC MACHINERY AUTOMATION

PLASTIC MACHINERY AUTOMATION PLASTIC MACHINERY AUTOMATION HELPING BUILD BETTER MACHINES CONTENTS CONTROLS Indusrial PCs 6 COMBIVIS Sudio 6 7 HMI 8 COMBIVIS Sudio HMI 9 VPN Rouer 10 DRIVES Funcional Safey 13 Technology 14 EXTRUDERS

More information

Safety Integrated for drive technology and motion control siemens.com/safety-drives

Safety Integrated for drive technology and motion control siemens.com/safety-drives Simply safe wice he efficiency! Safey Inegraed for drive echnology and moion conrol siemens.com/safey-drives Focused approach for more safey As machine builder and company operaing machines, your opmos

More information

A time-space consistency solution for hardware-in-the-loop simulation system

A time-space consistency solution for hardware-in-the-loop simulation system Inernaional Conference on Advanced Elecronic Science and Technology (AEST 206) A ime-space consisency soluion for hardware-in-he-loop simulaion sysem Zexin Jiang a Elecric Power Research Insiue of Guangdong

More information

Service Oriented Solution Modeling and Variation Propagation Analysis based on Architectural Building Blocks

Service Oriented Solution Modeling and Variation Propagation Analysis based on Architectural Building Blocks Carnegie Mellon Universiy From he SelecedWorks of Jia Zhang Ocober, 203 Service Oriened Soluion Modeling and Variaion Propagaion Analysis based on Archiecural uilding locks Liang-Jie Zhang Jia Zhang Available

More information

TimeProvider 2300 Edge Gateway Clock

TimeProvider 2300 Edge Gateway Clock TimeProvider 2300 Feaures Sandalone IEEE 1588 Precision Time Proocol (PTP) gaeway clock Flexible PTP profiles o suppor boh frequency and phase synchronizaion IPv4 and IPv6 PTP profile suppor Suppor for

More information

Intelligent Products to Deliver 10-GbE from Edge to Core

Intelligent Products to Deliver 10-GbE from Edge to Core Highlighs FWS X-series is available in wo models:24-por 10/100/1000-Mbps (RJ-45) wih he FWS X424, and 48-por 10/100/1000-Mbps (RJ-45) wih he.boh include four SFP pors o suppor SX,LX,LHA,and CWDM GbE fiber

More information

Dimmer time switch AlphaLux³ D / 27

Dimmer time switch AlphaLux³ D / 27 Dimmer ime swich AlphaLux³ D2 426 26 / 27! Safey noes This produc should be insalled in line wih insallaion rules, preferably by a qualified elecrician. Incorrec insallaion and use can lead o risk of elecric

More information

TRANSFORMER TEST SYSTEMS

TRANSFORMER TEST SYSTEMS TRANSFORMER TEST SYSTEMS 20203 TRANSFORMER TEST SYSTEMS FROM PHENIX Broad Range Covers Mos Applicaions PHENIX Technologies offers a complee line of Transformer Tes Sysems, from a small porable uni wih

More information

Web System for the Remote Control and Execution of an IEC Application

Web System for the Remote Control and Execution of an IEC Application Web Sysem for he Remoe Conrol and Execuion of an IEC 61499 Applicaion Oana ROHAT, Dan POPESCU Faculy of Auomaion and Compuer Science, Poliehnica Universiy, Splaiul Independenței 313, Bucureși, 060042,

More information

BEST DYNAMICS NAMICS CRM A COMPILATION OF TECH-TIPS TO HELP YOUR BUSINESS SUCCEED WITH DYNAMICS CRM

BEST DYNAMICS NAMICS CRM A COMPILATION OF TECH-TIPS TO HELP YOUR BUSINESS SUCCEED WITH DYNAMICS CRM DYNAMICS CR A Publicaion by elogic s fines Microsof Dynamics CRM Expers { ICS CRM BEST OF 2014 A COMPILATION OF TECH-TIPS TO HELP YOUR BUSINESS SUCCEED WITH DYNAMICS CRM NAMICS CRM { DYNAMICS M INTRODUCTION

More information

COSC 3213: Computer Networks I Chapter 6 Handout # 7

COSC 3213: Computer Networks I Chapter 6 Handout # 7 COSC 3213: Compuer Neworks I Chaper 6 Handou # 7 Insrucor: Dr. Marvin Mandelbaum Deparmen of Compuer Science York Universiy F05 Secion A Medium Access Conrol (MAC) Topics: 1. Muliple Access Communicaions:

More information

On the Impact of Concurrency for the Enforcement of Entailment Constraints in Process-driven SOAs

On the Impact of Concurrency for the Enforcement of Entailment Constraints in Process-driven SOAs On he Impac of Concurrency for he Enforcemen of Enailmen Consrains in Process-driven OAs Thomas Quirchmayr and Mark rembeck Insiue for Informaion ysems, New Media Lab, WU Vienna, Ausria {firsname.lasname}@wu.ac.a

More information

Pfeiffer. Adobe InDesign CS2: Market Perspectives, Productivity and Return on Investment. Consulting

Pfeiffer. Adobe InDesign CS2: Market Perspectives, Productivity and Return on Investment. Consulting Pfeiffer Consuling 01001011 Adobe InDesign CS2: Marke Perspecives, Produciviy and Reurn on Invesmen Pfeiffer Consuling 2004-2005 Reproducion prohibied wihou prior wrien permission. Adobe InDesign CS2:

More information

USBFC (USB Function Controller)

USBFC (USB Function Controller) USBFC () EIFUFAL501 User s Manual Doc #: 88-02-E01 Revision: 2.0 Dae: 03/24/98 (USBFC) 1. Highlighs... 4 1.1 Feaures... 4 1.2 Overview... 4 1.3 USBFC Block Diagram... 5 1.4 USBFC Typical Sysem Block Diagram...

More information

Chapter 4 Sequential Instructions

Chapter 4 Sequential Instructions Chaper 4 Sequenial Insrucions The sequenial insrucions of FBs-PLC shown in his chaper are also lised in secion 3.. Please refer o Chaper, "PLC Ladder diagram and he Coding rules of Mnemonic insrucion",

More information

Java Metadata Interface(JMI) Specification

Java Metadata Interface(JMI) Specification Java Meadaa Inerface(JMI) Specificaion JSR 040 Java Communiy Process hp://www.jcp.org/ Version 1.0 Final Specificaion 07-June-2002 Technical commens: jmi-commens@sun.com Specificaion Lead: Ravi Dirckze,

More information

Timers CT Range. CT-D Range. Electronic timers. CT-D Range. Phone: Fax: Web: -

Timers CT Range. CT-D Range. Electronic timers. CT-D Range. Phone: Fax: Web:  - CT-D Range Timers CT-D Range Elecronic imers Characerisics Diversiy: mulifuncion imers 0 single-funcion imers Conrol supply volages: Wide range: -0 V AC/DC Muli range: -8 V DC, 7 ime ranges from 0.0s o

More information

Using CANopen Slave Driver

Using CANopen Slave Driver CAN Bus User Manual Using CANopen Slave Driver V1. Table of Conens 1. SDO Communicaion... 1 2. PDO Communicaion... 1 3. TPDO Reading and RPDO Wriing... 2 4. RPDO Reading... 3 5. CANopen Communicaion Parameer

More information

1. Function 1. Push-button interface 4g.plus. Push-button interface 4-gang plus. 2. Installation. Table of Contents

1. Function 1. Push-button interface 4g.plus. Push-button interface 4-gang plus. 2. Installation. Table of Contents Chaper 4: Binary inpus 4.6 Push-buon inerfaces Push-buon inerface Ar. no. 6708xx Push-buon inerface 2-gang plus Push-buon inerfacechaper 4:Binary inpusar. no.6708xxversion 08/054.6Push-buon inerfaces.

More information

An HTTP Web Traffic Model Based on the Top One Million Visited Web Pages

An HTTP Web Traffic Model Based on the Top One Million Visited Web Pages An HTTP Web Traffic Model Based on he Top One Million Visied Web Pages Rasin Pries, Zsol Magyari, Phuoc Tran-Gia Universiy of Würzburg, Insiue of Compuer Science, Germany Email: {pries,rangia}@informaik.uni-wuerzburg.de

More information

Design and Application of Computer-aided English Online Examination System NONG DeChang 1, a

Design and Application of Computer-aided English Online Examination System NONG DeChang 1, a 3rd Inernaional Conference on Maerials Engineering, Manufacuring Technology and Conrol (ICMEMTC 2016) Design and Applicaion of Compuer-aided English Online Examinaion Sysem NONG DeChang 1, a 1,2 Guangxi

More information

MB86297A Carmine Timing Analysis of the DDR Interface

MB86297A Carmine Timing Analysis of the DDR Interface Applicaion Noe MB86297A Carmine Timing Analysis of he DDR Inerface Fujisu Microelecronics Europe GmbH Hisory Dae Auhor Version Commen 05.02.2008 Anders Ramdahl 0.01 Firs draf 06.02.2008 Anders Ramdahl

More information

Adding Time to an Object-Oriented Versions Model

Adding Time to an Object-Oriented Versions Model Insiuo de Informáica Universidade Federal do Rio Grande do Sul Poro Alegre - RS - BRAZIL Adding Time o an Objec-Oriened Versions Model Mirella Moura Moro Nina Edelweiss Silvia Maria Saggiorao Clesio Saraiva

More information

PROCESS AUTOMATION MANUAL TIMER RELAY KF**-DU-EX1.D ISO9001

PROCESS AUTOMATION MANUAL TIMER RELAY KF**-DU-EX1.D ISO9001 PROCESS AUTOMATION MANUAL TIMER RELAY KF**-DU-EX1.D ISO9001 Wih regard o he supply of producs, he curren issue of he following documen is applicable: The general erms of delivery for producs and services

More information

User Adjustable Process Scheduling Mechanism for a Multiprocessor Embedded System

User Adjustable Process Scheduling Mechanism for a Multiprocessor Embedded System Proceedings of he 6h WSEAS Inernaional Conference on Applied Compuer Science, Tenerife, Canary Islands, Spain, December 16-18, 2006 346 User Adjusable Process Scheduling Mechanism for a Muliprocessor Embedded

More information

Selective Offloading in Mobile Edge Computing for the Green Internet of Things

Selective Offloading in Mobile Edge Computing for the Green Internet of Things EDGE COMPUTING FOR THE INTERNET OF THINGS Selecive Offloading in Mobile Edge Compuing for he Green Inerne of Things Xinchen Lyu, Hui Tian, Li Jiang, Alexey Vinel, Sabia Maharjan, Sein Gjessing, and Yan

More information

Improving the Efficiency of Dynamic Service Provisioning in Transport Networks with Scheduled Services

Improving the Efficiency of Dynamic Service Provisioning in Transport Networks with Scheduled Services Improving he Efficiency of Dynamic Service Provisioning in Transpor Neworks wih Scheduled Services Ralf Hülsermann, Monika Jäger and Andreas Gladisch Technologiezenrum, T-Sysems, Goslarer Ufer 35, D-1585

More information

NRMI: Natural and Efficient Middleware

NRMI: Natural and Efficient Middleware NRMI: Naural and Efficien Middleware Eli Tilevich and Yannis Smaragdakis Cener for Experimenal Research in Compuer Sysems (CERCS), College of Compuing, Georgia Tech {ilevich, yannis}@cc.gaech.edu Absrac

More information

Performance and Availability Assessment for the Configuration of Distributed Workflow Management Systems

Performance and Availability Assessment for the Configuration of Distributed Workflow Management Systems Absrac Performance and Availabiliy Assessmen for he Configuraion of Disribued Workflow Managemen Sysems Michael Gillmann 1, Jeanine Weissenfels 1, Gerhard Weikum 1, Achim Kraiss 2 1 Universiy of he Saarland,

More information

ETD-BL-1T-OFF-CC-... Timer relay with off delay (with control contact) and adjustable time. INTERFACE Data sheet _en_01. 1 Description.

ETD-BL-1T-OFF-CC-... Timer relay with off delay (with control contact) and adjustable time. INTERFACE Data sheet _en_01. 1 Description. Timer relay wih off delay (wih conrol conac) and adjusable ime INTERFACE Daa shee 103617_en_01 1 Descripion PHOENIX CONTACT - 09/2009 Feaures Compac ime relay in he 6.2 mm housing in order o conrol ime

More information

PCMCIA / JEIDA SRAM Card

PCMCIA / JEIDA SRAM Card Daashee PCMCIA / JEIDA SRAM Card Version 10 Preliminary Version 10 Page1 Documen Version Version Descripion Dae Edior Approved by 8 Updae 2, April, 2002 Greg Lin Greg Lin 9 Updae 10, Aug., 2010 Amos Chung

More information

MUX 1. GENERAL DESCRIPTION

MUX 1. GENERAL DESCRIPTION 256Mb Async./Burs/Sync./A/D MUX 1. GENERAL DESCRIPTION Winbond x16 ADMUX producs are high-speed, CMOS pseudo-saic random access memory developed for lowpower, porable applicaions. The device has a DRAM

More information

Chapter 8 LOCATION SERVICES

Chapter 8 LOCATION SERVICES Disribued Compuing Group Chaper 8 LOCATION SERVICES Mobile Compuing Winer 2005 / 2006 Overview Mobile IP Moivaion Daa ransfer Encapsulaion Locaion Services & Rouing Classificaion of locaion services Home

More information

Delay in Packet Switched Networks

Delay in Packet Switched Networks 1 Delay in Packe Swiched Neworks Required reading: Kurose 1.5 and 1.6 CSE 4213, Fall 2006 Insrucor: N. Vlajic Delay in Packe-Swiched Neworks 2 Link/Nework Performance Measures: hroughpu and delay Link

More information

Coded Caching with Multiple File Requests

Coded Caching with Multiple File Requests Coded Caching wih Muliple File Requess Yi-Peng Wei Sennur Ulukus Deparmen of Elecrical and Compuer Engineering Universiy of Maryland College Park, MD 20742 ypwei@umd.edu ulukus@umd.edu Absrac We sudy a

More information

IDEF3 Process Description Capture Method

IDEF3 Process Description Capture Method IDEF3 Process Descripion Capure Mehod IDEF3 is par of he IDEF family of mehods developmen funded by he US Air Force o provide modelling suppor for sysems engineering and enerprise inegraion 2 IDEF3 Mehod

More information

Mobile Computing IEEE Standard 9/10/14. CSE 40814/60814 Fall 2014

Mobile Computing IEEE Standard 9/10/14. CSE 40814/60814 Fall 2014 Mobile Compuing CSE 40814/60814 Fall 2014 IEEE IEEE (Ins4ue of Elecrical and Elecronics Engineers) esablished he 802.11 Group in 1990. Specifica4ons for sandard ra4fied in 1997. Ini4al speeds were 1 and

More information

Communication Networks

Communication Networks Communicaion Neworks Chaper 10 Wireless Local Area Neworks According o IEEE 802.11 Communicaion Neworks: 10. IEEE 802.11 651 10. WLANs According o IEEE 802.11 Overview Organizaion of a WLAN according o

More information

A Scheme to Reduce Packet Loss during PMIPv6 Handover considering Authentication

A Scheme to Reduce Packet Loss during PMIPv6 Handover considering Authentication Inernaional Conference on Compuaional Sciences and Is Applicaions ICCSA 2008 A Scheme o Reduce Loss during P Handover considering Auhenicaion Seonggeun Ryu, Gye-Young Kim, Byunggi Kim, and Youngsong Mun

More information

Flogger: A File-centric Logger for Monitoring File Access and Transfers within Cloud Computing Environments

Flogger: A File-centric Logger for Monitoring File Access and Transfers within Cloud Computing Environments 11 Inernaional Join Conference of IEEE TrusCom-11/IEEE ICESS-11/FCST-11 Flogger: A File-cenric Logger for Monioring File Access and Transfers wihin Cloud Compuing Environmens Ryan K L Ko, Peer Jagadpramana,

More information

Connections, displays and operating elements. Status LEDs (next to the keys)

Connections, displays and operating elements. Status LEDs (next to the keys) GB Connecions, displays and operaing elemens A Push-buon plus Sysem M Operaing insrucions 1 2 1 2 3 4 5 6 7 8 C B A 4 Inser he bus erminal ino he connecion of pushbuon A. 5 Inser he push-buon ino he frame.

More information

Saturday from 09:00-13:00 (GMT) Documentation on all Paxton products can be found on our website -

Saturday from 09:00-13:00 (GMT) Documentation on all Paxton products can be found on our website - 4/05/0 Ins-30080 Ne plus conrol uni Paxon Technical Suppor 073 80 suppor@paxon.co.uk Technical help is available: Monday - Friday from 07:00-9:00 (GMT) Saurday from 09:00-3:00 (GMT) Documenaion on all

More information

Analysis of Various Types of Bugs in the Object Oriented Java Script Language Coding

Analysis of Various Types of Bugs in the Object Oriented Java Script Language Coding Indian Journal of Science and Technology, Vol 8(21), DOI: 10.17485/ijs/2015/v8i21/69958, Sepember 2015 ISSN (Prin) : 0974-6846 ISSN (Online) : 0974-5645 Analysis of Various Types of Bugs in he Objec Oriened

More information

Saturday from 09:00-13:00 (GMT) Documentation on all Paxton Access products can be found on our website -

Saturday from 09:00-13:00 (GMT) Documentation on all Paxton Access products can be found on our website - 9/3/9 Ins-38 Ne plus conrol uni Paxon Access Technical Suppor +44 ()173 81111 suppor@paxon.co.uk Technical help is available: Monday - Friday from 7: - 19: (GMT) Saurday from 9: - 13: (GMT) Documenaion

More information

Connections, displays and operating elements. 3 aux. 5 aux.

Connections, displays and operating elements. 3 aux. 5 aux. Taser PlusKapiel3:Taser3.1Taser Plus Meren2005V6280-561-0001/08 GB Connecions, displays and operaing elemens Taser Plus Arec/Anik/Trancen Operaing insrucions A 1 2 1 2 3 4 5 6 C B A B 3 aux. 7 8 9 aux.

More information

CS 152 Computer Architecture and Engineering. Lecture 6 - Memory

CS 152 Computer Architecture and Engineering. Lecture 6 - Memory CS 152 Compuer Archiecure and Engineering Lecure 6 - Memory Krse Asanovic Elecrical Engineering and Compuer Sciences Universiy of California a Berkeley hp://www.eecs.berkeley.edu/~krse hp://ins.eecs.berkeley.edu/~cs152

More information

SEINA: A Stealthy and Effective Internal Attack in Hadoop Systems

SEINA: A Stealthy and Effective Internal Attack in Hadoop Systems SEINA: A Sealhy and Effecive Inernal Aack in Hadoop Sysems Jiayin Wang, Teng Wang, Zhengyu Yang, Ying ao, Ningfang i, and Bo Sheng Deparmen of Compuer Science, Universiy of assachuses Boson, 1 orrissey

More information

PCMCIA / JEIDA SRAM Card

PCMCIA / JEIDA SRAM Card Daashee PCMCIA / JEIDA SRAM Card Version 12 Preliminary Version 12 Page1 Documen Version Version Descripion Dae Edior Approved by 8 Updae 2,Apr. 2002 Greg Lin Greg Lin 9 Updae 10,Aug. 2010 Amos Chung Ken

More information

Restorable Dynamic Quality of Service Routing

Restorable Dynamic Quality of Service Routing QOS ROUTING Resorable Dynamic Qualiy of Service Rouing Murali Kodialam and T. V. Lakshman, Lucen Technologies ABSTRACT The focus of qualiy-of-service rouing has been on he rouing of a single pah saisfying

More information

LD7832A 4/17/2013. High Power Factor LED Controller with HV Start-up. General Description. Features. Applications. Typical Application REV: 00

LD7832A 4/17/2013. High Power Factor LED Controller with HV Start-up. General Description. Features. Applications. Typical Application REV: 00 4/17/2013 High Power Facor LED Conroller wih HV Sar-up REV: 00 General Descripion The is a buck soluion wih high PFC conrol for LED lighing. I feaures HV sar-up, easy o design wih minimum cos and PCB size.

More information

FLORIDA INTERNATIONAL UNIVERSITY. Miami, Florida DIMUSE: AN INTEGRATED FRAMEWORK FOR DISTRIBUTED MULTIMEDIA

FLORIDA INTERNATIONAL UNIVERSITY. Miami, Florida DIMUSE: AN INTEGRATED FRAMEWORK FOR DISTRIBUTED MULTIMEDIA FLORIDA INTERNATIONAL UNIVERSITY Miami, Florida DIMUSE: AN INTEGRATED FRAMEWORK FOR DISTRIBUTED MULTIMEDIA SYSTEM WITH DATABASE MANAGEMENT AND SECURITY SUPPORT A disseraion submied in parial fulfillmen

More information

Managing XML Versions and Replicas in a P2P Context

Managing XML Versions and Replicas in a P2P Context Managing XML Versions and Replicas in a P2P Conex Deise de Brum Saccol1 1,2, Nina Edelweiss 2, Renaa de Maos Galane 2,4, Carlo Zaniolo 3 2 Insiuo de Informáica - Universidade Federal do Rio Grande do Sul

More information

Lecture 4. Programming with Message Passing: Applications and Performance

Lecture 4. Programming with Message Passing: Applications and Performance Lecure 4 Programming wih Message Passing: Applicaions and Performance Announcemens Quiz #1 in secion on 10/13 Miderm: evening of 10/30, 7:00 o 8:20 PM Wednesday s office hours sar a 1.30 (res of he quarer)

More information

Sartorius Cubis Series

Sartorius Cubis Series Brief Insrucions Sarorius Cubis Series Elecronic Precision and Analical Balances MSU Models 98648-017-12 Informaion for he User Conens Noes on using his manual....................... 3 Safe Insrucions.............................

More information

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. XX, NO. XX, XX XXXX 1

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. XX, NO. XX, XX XXXX 1 This is he auhor's version of an aricle ha has been published in his journal. Changes were made o his version by he publisher prior o publicaion. IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. XX,

More information

An Experimental QoS Manager Implementation

An Experimental QoS Manager Implementation An Experimenal QoS Manager Implemenaion Drago Žagar, Goran Marinović, Slavko Rupčić Faculy of Elecrical Engineering Universiy of Osijek Kneza Trpimira 2B, Osijek Croaia drago.zagar@efos.hr Absrac-- Qualiy

More information

Video Content Description Using Fuzzy Spatio-Temporal Relations

Video Content Description Using Fuzzy Spatio-Temporal Relations Proceedings of he 4s Hawaii Inernaional Conference on Sysem Sciences - 008 Video Conen Descripion Using Fuzzy Spaio-Temporal Relaions rchana M. Rajurkar *, R.C. Joshi and Sananu Chaudhary 3 Dep of Compuer

More information

EECS 487: Interactive Computer Graphics

EECS 487: Interactive Computer Graphics EECS 487: Ineracive Compuer Graphics Lecure 7: B-splines curves Raional Bézier and NURBS Cubic Splines A represenaion of cubic spline consiss of: four conrol poins (why four?) hese are compleely user specified

More information

Elite Acoustics Engineering A4-8 Live-Performance Studio Monitor with 4 Channels, Mixer, Effects, and Bluetooth Quick Start Guide

Elite Acoustics Engineering A4-8 Live-Performance Studio Monitor with 4 Channels, Mixer, Effects, and Bluetooth Quick Start Guide Elie Acousics Engineering A4-8 Live-Performance Sudio Monior wih 4 Channels, Mixer, Effecs, and Blueooh Quick Sar Guide WHAT IS IN THE BOX Your A4-8 package conains he following: (1) Speaker (1) 12V AC

More information

CS 152 Computer Architecture and Engineering. Lecture 7 - Memory Hierarchy-II

CS 152 Computer Architecture and Engineering. Lecture 7 - Memory Hierarchy-II CS 152 Compuer Archiecure and Engineering Lecure 7 - Memory Hierarchy-II Krse Asanovic Elecrical Engineering and Compuer Sciences Universiy of California a Berkeley hp://www.eecs.berkeley.edu/~krse hp://ins.eecs.berkeley.edu/~cs152

More information

Quick Verification of Concurrent Programs by Iteratively Relaxed Scheduling

Quick Verification of Concurrent Programs by Iteratively Relaxed Scheduling Quick Verificaion of Concurren Programs by Ieraively Relaxed Scheduling Parick Mezler, Habib Saissi, Péer Bokor, Neeraj Suri Technische Univerisä Darmsad, Germany {mezler, saissi, pbokor, suri}@deeds.informaik.u-darmsad.de

More information

Troubleshooting PLCopen Block Behavior

Troubleshooting PLCopen Block Behavior Troubleshooing PLCopen Block Behavior Deailed Troubleshooing of he PLCopen Block Behavior General informaion Copyrigh Siemens AG 2 All righs reserved Subjec o change wihou prior noice. Copyrigh The disribuion

More information

A NEW APPROACH FOR 3D MODELS TRANSMISSION

A NEW APPROACH FOR 3D MODELS TRANSMISSION A NEW APPROACH FOR 3D MODELS TRANSMISSION A. Guarnieri a, F. Piroi a, M. Ponin a, A. Veore a a CIRGEO, Inerdep. Research Cener of Carography, Phoogrammery, Remoe Sensing and GIS Universiy of Padova, Agripolis

More information

STEREO PLANE MATCHING TECHNIQUE

STEREO PLANE MATCHING TECHNIQUE STEREO PLANE MATCHING TECHNIQUE Commission III KEY WORDS: Sereo Maching, Surface Modeling, Projecive Transformaion, Homography ABSTRACT: This paper presens a new ype of sereo maching algorihm called Sereo

More information

CS 152 Computer Architecture and Engineering. Lecture 6 - Memory

CS 152 Computer Architecture and Engineering. Lecture 6 - Memory CS 152 Compuer Archiecure and Engineering Lecure 6 - Memory Krse Asanovic Elecrical Engineering and Compuer Sciences Universiy of California a Berkeley hp://www.eecs.berkeley.edu/~krse hp://ins.eecs.berkeley.edu/~cs152

More information

User Manual. RINS Software Revision >V9.26

User Manual. RINS Software Revision >V9.26 User Manual INTERNAL SIREN WARNING The Enforcer 32-WE conrol panel conains a 100 dba siren, please be aware of his when in use. RINS1503-2 Sofware Revision >V9.26 Conens Page A: Inroducion 3 B: Keypads

More information

MATH Differential Equations September 15, 2008 Project 1, Fall 2008 Due: September 24, 2008

MATH Differential Equations September 15, 2008 Project 1, Fall 2008 Due: September 24, 2008 MATH 5 - Differenial Equaions Sepember 15, 8 Projec 1, Fall 8 Due: Sepember 4, 8 Lab 1.3 - Logisics Populaion Models wih Harvesing For his projec we consider lab 1.3 of Differenial Equaions pages 146 o

More information

Software Architecture of the Light Weight Kernel, Catamount

Software Architecture of the Light Weight Kernel, Catamount Sofware Archiecure of he Ligh Weigh Kernel Caamoun Suzanne M. Kelly Sandia Naional Laboraories* Scalable Sysems Inegraion Deparmen PO BOX 5800 Albuquerque NM 87185-0817 smkelly@sandia.gov Ron Brighwell

More information

Improving Occupancy Grid FastSLAM by Integrating Navigation Sensors

Improving Occupancy Grid FastSLAM by Integrating Navigation Sensors Improving Occupancy Grid FasSLAM by Inegraing Navigaion Sensors Chrisopher Weyers Sensors Direcorae Air Force Research Laboraory Wrigh-Paerson AFB, OH 45433 Gilber Peerson Deparmen of Elecrical and Compuer

More information

AML710 CAD LECTURE 11 SPACE CURVES. Space Curves Intrinsic properties Synthetic curves

AML710 CAD LECTURE 11 SPACE CURVES. Space Curves Intrinsic properties Synthetic curves AML7 CAD LECTURE Space Curves Inrinsic properies Synheic curves A curve which may pass hrough any region of hreedimensional space, as conrased o a plane curve which mus lie on a single plane. Space curves

More information

A Matching Algorithm for Content-Based Image Retrieval

A Matching Algorithm for Content-Based Image Retrieval A Maching Algorihm for Conen-Based Image Rerieval Sue J. Cho Deparmen of Compuer Science Seoul Naional Universiy Seoul, Korea Absrac Conen-based image rerieval sysem rerieves an image from a daabase using

More information

Network management and QoS provisioning - QoS in Frame Relay. . packet switching with virtual circuit service (virtual circuits are bidirectional);

Network management and QoS provisioning - QoS in Frame Relay. . packet switching with virtual circuit service (virtual circuits are bidirectional); QoS in Frame Relay Frame relay characerisics are:. packe swiching wih virual circui service (virual circuis are bidirecional);. labels are called DLCI (Daa Link Connecion Idenifier);. for connecion is

More information

V103 TRIPLE 10-BIT LVDS TRANSMITTER FOR VIDEO. General Description. Features. Block Diagram

V103 TRIPLE 10-BIT LVDS TRANSMITTER FOR VIDEO. General Description. Features. Block Diagram General Descripion The V103 LVDS display inerface ransmier is primarily designed o suppor pixel daa ransmission beween a video processing engine and a digial video display. The daa rae suppors up o SXGA+

More information

Small Spacecraft Software Modeling: A Petri Net-Based Approach

Small Spacecraft Software Modeling: A Petri Net-Based Approach SSC13-VIII-3 Small Spacecraf Sofware Modeling: A Peri Ne-Based Approach Levi, Pasha Missouri Universiy of Science and Technology 400 Wes 13h Sree, Rolla, MO 65409-0050; 573-341-7280 lmnn3@ms.edu Faculy

More information

Definition and examples of time series

Definition and examples of time series Definiion and examples of ime series A ime series is a sequence of daa poins being recorded a specific imes. Formally, le,,p be a probabiliy space, and T an index se. A real valued sochasic process is

More information

AN ACTIVE PROGRAMMABLE HARNESS FOR MEASURMENT OF COMPOSITE NETWORK STATES

AN ACTIVE PROGRAMMABLE HARNESS FOR MEASURMENT OF COMPOSITE NETWORK STATES IEEE Inernaional Conference on Neworking, ICN 1, Colmer, France, June 1, pp68-638. AN ACTIVE PROGRAMMABLE HARNESS FOR MEASURMENT OF COMPOSITE NETWORK STATES Javed I. Khan and Asrar U. Haque Inerneworking

More information

A New Semantic Cache Management Method in Mobile Databases

A New Semantic Cache Management Method in Mobile Databases Journal o Compuer Science 1 (3): 351-354, 25 ISSN 1549-3636 Science Publicaions, 25 A New Semanic Cache Managemen Mehod in Mobile Daabases Shengei Shi, Jianzhong Li and Chaokun Wang School o Compuer Science

More information

/85/ $ IEEE

/85/ $ IEEE 174 Saged Circui Swiching MAURICIO ARANGO, HUSSEIN BADR, AND DAVID GELERNTER Absrac -Saged circui swiching (S) is a message-swiching echnique ha combines a new proocol wih new communicaion hardware. Proocol

More information