Enterprise POS Tuning Guide
|
|
- Jared Anderson
- 6 years ago
- Views:
Transcription
1 Version: 1.1 Status: Final Enterprise POS Tuning Guide Version Status Date 1.1 Final Page 1 of 19
2 Contents 1 Summary Tuning Overview A Note on Sizing Topologies, and their Impact on Tuning Local Store Server Topology Centralized Store Server Topology The Optimum Head Office Deployment The EPOS Components Tuning the Operating System Linux Middleware Preparation File System Remove Unnecessary Services Tuning DB Physical Disks DB2 Configuration Advisor DB2 Maintenance Tuning WebSphere Application Server Java Memory Management and Garbage Collection Thread Pool Management JDBC Tuning WebSphere MQ Tuning EPOS EPOS Configuration Appendix: Additional Resources...19 Page 2 of 19
3 1 Summary Enterprise POS (EPOS) is a world-class point of sale platform. It has been designed to take advantage of modern technologies and middleware, making it one of the most scalable retail platforms available. This software offers a great deal of flexibility; it can be used for small and large retailers, for very small and very large stores, for low-volume boutiques as well as very busy convenience stores. This flexibility is achieved through the tuning of a myriad of options. EPOS is built upon IBM s Web- Sphere Remote Server, which includes WebSphere Application Server, WebSphere MQ, and DB2 UDB. Each of these components can be tuned for different operating environments. Additionally, you can custom-tune the EPOS itself to be used in different circumstances. This document provides guidance on how to tune this point of sale platform to meet the needs of retailers. 2 Tuning Overview 2.1 A Note on Sizing Sizing hardware to meet requirements is a complex task which is typically accomplished using skill sets that range from benchmark testing to real-world experience. This guide does not deal with hardware sizing. What it does deal with is how to get the most out of the hardware that is being used. 2.2 Topologies, and their Impact on Tuning EPOS has the ability to deploy its components on various nodes in a retail system. This is often one of the first decisions made during the blueprinting phase of a project. The following subsections list typical topologies and identify tuning issues associated with each one: Local Store Server Topology This is the most common topology, in which both the POS Manager and the Configurator are deployed centrally. The store server holds only the POS component. It is possible to use the central site as a failover target. This topology is the most frequently used for the following reasons: Allows retailers to use smaller servers in the store since major functions are performed centrally. Does not require a cluster at every store (POS Manager in the store); using a central cluster guarantees high availability. From a tuning perspective, the Head Office deployment in this topology is a major performance hot-spot. Transactions are posted (via JMS) from all stores, all stores use it for POS Manager. Additionally, if using a Master Data Import (MDI), the Head Office component serves all stores their master data. Significant effort should be applied to making this Head Office deployment run as efficiently and smoothly as possible. Page 3 of 19
4 The stores are typically less of a concern in this topology, unless the stores are larger (more than 20 terminals). In this case, tuning the store server to support the number of concurrent clients becomes important Recommendations Unless there is a reason not to, use this topology. Unless the retailer is quite small (less than 100 stores), separate the Head Office Application Server from the Database Server. The operating system, hardware, disk utilization, etc. are typically very different. By separating them, they can be tuned independently. Follow the advice in this Tuning Guide as closely as possible Centralized Store Server Topology This topology is only for retailers that have very high WAN reliability and performance. This topology does not deploy in-store servers. The store server components are deployed at a central site. The POS Clients communicate across the WAN for all operations. If the WAN is down, the POS Client is unavailable, unless using Offline Capable Clients. This is an excellent topology for retailers that have a reliable-enough WAN. However, any instability in the WAN will cause this topology to behave very poorly, and as such, is only recommended for retailers that have 99.9% WAN reliability. If the retailer meets this requirement, the benefits are clear: a central store server, if sized appropriately, can support more than one store, significantly reducing the total cost of ownership Recommendations If the retailer s WAN meets the availability and performance criteria, this is a good choice. Sizing the store servers is the key to ensuring they can support the number of POS clients required. Separate the Store Servers from the Head Office servers. I.e. deploy only POS on the store servers, and POS Manager on the Head Office Servers. Separate the App and DB servers on the head office. 2.3 The Optimum Head Office Deployment The Head Office, in nearly all EPOS deployments, is where the biggest performance load is. The Head Office handles: Transactions posting from the store POS Manager (in most deployments) Service Access Exporting services to ERP Importing Master Data etc. Page 4 of 19
5 Therefore, it is critically important to create a Head Office environment that is suitable to grow with the retailer s environment. Out of the box, EPOS places all middleware components on the same physical machine. WebSphere Application Server, WebSphere MQ, and DB2, are all deployed automatically. However, this can be changed by the retailer in many ways: Separate the database from the application server this is typical in most large scale deployments, as the operating system and hardware can be tuned differently for DB2 and WebSphere. This is recommended. Separate WebSphere MQ from the Application Server in extremely intensive environments, WebSphere MQ can be very CPU intensive, and may be best served by its own environment. Deploy DB2 s database into a SAN. Deploy WebSphere MQ into a cluster provides load balancing and high availability. Deploy WebSphere into a Node Deployment (ND) cluster provides high availability and load balancing. Note that these changes are not automatically deployed, and must be configured by the retailer. Assistance for making these changes is available from both SAP and IBM. 2.4 The EPOS Components There are six main tunable components to any EPOS deployment: Hardware Hardware tuning involves the adding or removing of hardware, for example, adding memory, CPUs, disks, etc. In some cases, changing BIOS settings may improve performance. Hardware tuning is not discussed in this guide. Operating System Both Windows and Linux can be tuned to support EPOS deployments. WebSphere Application Server this is the container for most of the EPOS business logic. This can be highly tuned to support the needs of a retailer. WebSphere MQ This component is used for message interchange between servers. It can be tuned to support the number of servers to connect, as well as to better support the message volumes of the individual retailers. DB2 As a data storage mechanism, DB2 is widely used for all CRUD (Create, Read, Update, Delete) operations. DB2 can be tuned based on whether a retailer chooses to do more reporting or transactions, as well as the size of data to be retained. EPOS The EPOS software can be tuned. Choosing the correct topology is the first tuning operation. There are also a number of system properties that can be set to improve performance, as needed. Page 5 of 19
6 3 Tuning the Operating System 3.1 Linux The following tuning parameters have all been tested on Suse Linux Enterprise Server, versions 9.3 and However, they should apply to most other Linux editions. Unless otherwise noted, all commands executed below should be executed using the root id Middleware Preparation Follow the operating system pre-requisites for the IBM Middleware. Use the following links to access documentation on the necessary settings: WebSphere Application Server: doc/info/aes/ae/tins_linuxsetup.html WebSphere MQ: m File System During on-going POS operations, there is a significant amount of inserts performed for recording transactions. As load increases, disk access becomes a major point of contention. For Head Office systems, we strongly recommend the use of a SAN. By having faster access and more physical disks, a limiter can be avoided. For In Store systems, the decision making lies in whether to use RAID, and which RAID option to use. We noted a significant performance improvement going from RAID 5 to RAID 0. For Linux, ext3 is strongly preferred over reiserfs. Ext3 is more appropriate for larger files, such as databases. Reiserfs is more appropriate for smaller files. For reiserfs file systems, in /etc/fstab add noatime,notail to the appropriate file systems. These settings reduce the amount of work performed each time a file is read or accessed. For ext3, only noatime is appropriate. Explanations below: noatime - turns off 'access time'. Can be a significant performance boost under some load scenarios. notail - stops the fs from storing small files in the end of the tree storing file metadata Remove Unnecessary Services For most distributions, the default Linux installation includes services that are not required for operating an EPOS Server application. Disabling these services reduces the overhead on the server. The first service that can be disabled is XWindows. XWindows support is not needed on the server application (although it is required on Linux POS Terminals). Disable this by setting the initial run-level of the server to 3 instead of 5. In /etc/inittab, modify the following line: # The default runlevel is defined here Page 6 of 19
7 id:5:initdefault: To this: # The default runlevel is defined here id:3:initdefault: You can also disable extra virtual terminals in /etc/inittab. This may only yield a small, but nevertheless worthwhile benefit. Comment out (add # at the beginning of a line) the terminals you won t use. In the example below, terminals 4, 5, and 6 are disabled. # getty-programs for the normal runlevels # <id>:<runlevels>:<action>:<process> # The "id" field MUST be the same as the last # characters of the device (after "tty"). 1:2345:respawn:/sbin/mingetty --noclear tty1 2:2345:respawn:/sbin/mingetty tty2 3:2345:respawn:/sbin/mingetty tty3 #4:2345:respawn:/sbin/mingetty tty4 #5:2345:respawn:/sbin/mingetty tty5 #6:2345:respawn:/sbin/mingetty tty6 Finally, check that all unnecessary services are disabled. Run chkconfig list as root and check to see which services are on in runlevels 3 and 5. In our test environment, the following services were unnecessarily enabled: alsasound: Enables the sound card. postfix: Enables . smbfs: Enables the Samba file system. A service can be disabled using the following command: chkconfig <servicename> off After making all of the above changes, restart the server. 4 Tuning DB2 As an out-of-the-box environment, SAP DB2 is reasonably well-tuned. However, every retailer uses different hardware, and has different data sets. As such, certain manual steps are required to tune DB2. The DB2 Control Center should be installed on an administrator PC before starting the tuning steps. While many of the options below are available in a command line mode, certain steps are easier with the Control Center. Additionally, the databases being administered need to be added to the control center before continuing. Page 7 of 19
8 4.1 Physical Disks When planning the hardware configuration of the Head Office database server system, the physical disk configuration can have a major impact on the performance of EPOS. The reasons for this impact are several, including the overall size of the data sets handled by the Head Office server, the transaction loads on the database and subsequent storage read and write frequencies, and the ability of the hardware to respond to the external storage request. The following general guidelines should be considered with respect to the physical configuration of the EPOS database storage hardware: Increase the number of spindles to improve performance. Spreading the storage operations over more spindles allows for the storage management to access or write information to more than one spindle simultaneously rather than wait for a single spindle to respond. This is most important for random, spaced read access, as well as, container write access, where the container is spread over multiple spindles. Proper logging (archive settings). DB2 logs require storage space. If left unchecked and nonarchived, the logs can fill the assigned log file storage. Automatic archiving of DB2 log files is recommended. Cyclic logging should not be used as it could severely impact replication if MDI is utilized. Archived logs should be removed periodically to offline storage but only if the archive files are no longer required for replication (MDI activated). Use of a SAN. A SAN is specifically designed to handle large storage requirements and high access rates. For large scale EPOS Head Office deployments, that is, large databases, these devices are a natural fit in terms of hardware storage for DB2. DB2 Automatic Storage is recommended for the deployments and segmentation of the SAN into several storage paths assigned to DB2. Each storage path represents a RAID 5 string of physical disks managed by the SAN. Separate storage paths for log files are also recommended to keep log file activity in the physical layer independent of the EPOS functional storage access. Tuning Tablespaces and Buffer Pools. As a consequence of performance testing, a more granular tablespace structure is being adopted by EPOS. This provides the opportunity to tune individual tablespace and bufferpool performance parameters based on the deployment of specific data content and hardware. 4.2 DB2 Configuration Advisor Tuning a database manually is a complex task; years of experience are typically required to massage the vast number of configuration parameters into a set that best supports the usage of the database. DB2, in its latest versions, has provided a configuration advisor that simplifies the database configuration. IBM quotes that the DB2 Configuration Advisor can achieve configurations that are at least 90% as good as what an expert DB2 DBA can set up manually. To begin, right-click on the database in Control Center, and select Configuration Advisor. Page 8 of 19
9 Figure 1: DB2 Configuration Advisor Set the required parameters on subsequent screens. Our recommendations are as follows: On the Server page, select the maximum amount of memory that can be dedicated to DB2. If the machine is running DB2 exclusively (recommended for Head Office), set the amount of memory as high as possible (for instance, 85%). Workload Mixed Transactions Select More than 10 (long transactions). You will then need to estimate the number of transactions per minute that you expect to complete across the enterprise. Enter the estimated value keeping in mind that the peak load on the system (at Head Office) will typically be transaction posting. Priority This is a choice that the retailer must make. We have had good results with Both. Populated The engine works best when the database has data in it. For the first run, select no. However, run the tool frequently, with data in it, and better optimizations will be offered. Page 9 of 19
10 Connections The maximum size of the database connection pools in WebSphere are defaulted to 100 for the TE database and 20 for the Receipt database. These maximums will most likely never be exceeded, therefore: o When the DB is on a separate machine from the application server, set the initial value for remote connections to 120, and set the local connections to 5 to allow for MDI and administrative users. o When the DB is on the same machine as the application server, set the initial value for local connections to 125. Isolation The default, Cursor Stability, is appropriate. Results The advisor calculates and displays setting changes. Schedule You can save the changes to an SQL file, or you can execute them or schedule them to be executed. Summary Displays the summary of execution. In our test labs, an MDI run improved from 18 minutes to 4 minutes after executing this wizard, demonstrating that substantial improvements can be made quickly. 4.3 DB2 Maintenance Keeping track of the statistics in the database is a critical part of ensuring that the database query engine always responds with the best access plan. As such, there are two jobs that should be run frequently: RUNSTATS This updates the statistics on table sizes and indexes that are kept by the database. This command should be run relatively often, especially after periods of high activity, such as an extremely high volume transaction day, or a large MDI run. REORGCHK UPDATE As the database gets used, data gets inserted, updated, and deleted. This can cause the table indexes to get fragmented. A full REORG will allow the database to organize the indexes for faster access. This job is time-consuming, and will take several hours. To determine if it is needed, you can run a REORGCHK (without UPDATE). See DB2 documentation for further details. 5 Tuning WebSphere Application Server WebSphere Application Server provides innumerable tuning options. This section covers the settings that SAP has found to yield the highest performance benefits. Some of the settings mentioned below depend entirely on the retailer s environment, and some are best practices that should not be changed unless advised otherwise by SAP. IBM also provides the Tivoli Performance Advisor as part of WebSphere. This tool can be used to determine any problem spots and is well-documented in the WebSphere Information Center (see the Appendix for link). Page 10 of 19
11 5.1 Java Memory Management and Garbage Collection Numerous articles have been written about Java Garbage Collection, and for good reason. Performance testing conducted by SAP has uncovered that significant benefits can be achieved by tuning the garbage collector. This section does not attempt to explain Java Memory Management; instead, it describes what SAP has discovered about our usage of Java Memory. Initial tests using IBM s default garbage collection policy yielded significant CPU overhead and frequent collections. In order to analyze the output of verbose garbage collection, we used the IBM Pattern Modeling and Analysis Tool for Java Garbage Collection (see the Appendix for links). This tool indicated that garbage collection was occurring quite frequently every 200 ms on average. This is a significant performance problem, as all processing must stop in order for garbage collection to occur. To solve this problem, we tuned the garbage collector to use IBM s gencon policy generational and concurrent. According to the IBM documentation: gencon, which is new in IBM Java 5.0, is a generational garbage collector for the IBM virtual machine for Java. The generational scheme attempts to achieve high throughput along with reduced garbage collection pause times. To accomplish this goal, the heap is split into new and old segments. Long lived objects are promoted to the old space while short-lived objects are garbage collected quickly in the new space. The gencon policy provides significant benefits for many applications, but is not suited to all applications and is generally more difficult to tune. With the gencon policy, you tune the new and old generations. Our testing has shown that for extensive transaction posting, roughly 25% of the total heap size should be old, and 75% should be new. Another setting that we have found useful to tune is Xnoclassgc, which prevents the JVM from garbage collecting a class from memory when no instances of that class exist. Using the above settings, for heap sizes of 2GB max, the JVM parameters should be: -Xnoclassgc -Xgcpolicy:gencon -Xmns384m -Xmos128m -Xmnx1536m -Xmox512m These values can be set using the IBM WebSphere Administration Console, which, if defaults are used during installation, can be found at After logging in, select Servers followed by Application Servers. On the right-hand side, select server1. Under Server Infrastructure, select Java and Process Management, then Process Definition. Under Additional Properties, select Java Virtual Machine. Make the necessary changes in the Generic JVM Arguments. Note that you can click the Custom Properties link on this page to change D JVM Parameters settings. SAP has also investigated the use of large pages, that is, the ability of a process to use extremely large heap sizes (option is Xlp). Our testing has not shown benefit, but the IBM JVM Tuning Guide indicates that it may be useful for scalability purposes. Note that the operating system must be tuned to allow this to happen. A link with instructions for Linux is included in the Appendix. Page 11 of 19
12 Figure 2: The WebSphere Administration Console 5.2 Thread Pool Management Threads are how the Java Virtual Machine enables concurrency. WebSphere Application Server offers three distinct thread pools that are used by EPOS: o Message Listener Thread Pool Used by Message Driven Beans receiving messages from WebSphere MQ (for example, Transaction Post, Customer Service Request) o ORB Thread Pool Used by the POS Server application to service POS Clients. o HTTP Thread Pool Used by POS Manager and Configurator. Managing the size of the thread pools is critical to ensuring optimum throughput. It is unlikely that all three thread pools become stressed at the same time. Therefore, the tuning of each thread pool can be handled somewhat independently provided the loads are well understood. For example, the HTTP Thread Pool will be busy during store opening and closing times, while the Message Listener Thread Pool will be Page 12 of 19
13 idle. However, during the course of the business day, the Message Listener Thread Pool will be very busy receiving transactions from the stores, while the HTTP Thread Pool will only see occasional use, such as for a report or a shift change. The single key factor to manage is CPU Utilization. As requests come in, over any of the thread pools, they get handled by a thread. If the number of requests exceeds the thread pool size, the requests will queue (wait) for an available thread. Once the thread pool is fully occupied, typically, the CPU will be fully occupied. We have found the best throughput is when the CPU peaks at 80%. This means that the number of threads must be tuned higher or lower accordingly. If the CPU utilization is too low, it means the machine sits idle, and you need to increase the thread count. If the utilization is too high, the CPU is thrashing and not working efficiently, and you need to reduce the thread count. For a dual-core Intel Xeon processor, running at 3.1 GHz, we found that for transaction posting, the machine handled 8 threads very well. However, note that this number is highly dependent on a number of factors, such as, the use case, the transaction size, the hardware, etc. A good number to start with is between 4 and 8 threads per CPU, and then adjust from there. Thread pools are also configured in the WebSphere Administration Console. To configure the Message Listener Thread Pool, select Servers followed by Application Servers. On the right-hand side, select server1. Under Communications, select Message Listener Service, then Thread Pool. Adjust the maximum size accordingly. Page 13 of 19
14 Figure 3: Configuring the Message Listener Thread Pool Note that additional throttling can be achieved by tuning the listener ports. Listener ports are the Java Interface to the various JMS destinations that EPOS communicates with. For example, a transaction posting from stores to Head Office is received at the te-from-stores-listenerport. From Message Listener Service in the console, select listener port, then te-from-stores-listenerport. Here, you can set the minimum and maximum sessions. Page 14 of 19
15 Figure 4: Configuring Listener Ports During listener port tuning, the listener port maximum sessions setting determines the maximum number of threads that can be dedicated to receiving messages from that particular JMS destination. This number should be less than the number of threads in the Message Listener Thread Pool. However, the sum total of all the maximum listeners of all the listener ports need not (and should not) be less than the number of threads. The goal during listener port tuning is to balance response time and throughput. For example, consider that a POS Client is failed over to the Head Office. It makes an EFT request. The POS Client is locked, waiting for a response from the EFT Provider over the te-eft-listenerport. Meanwhile, all other stores are in normal operations, and transactions are posting at a high rate on the te-from-storeslistenerport. Suppose that the maximum number of threads in the Message Listener Pool is 25, and the te-from-stores-listenerport is set to a maximum number of listeners of 25. In this case, there may be a wait time until a thread is available to process the EFT response, which in this case, is much more timecritical (a customer is waiting for the response). If the maximum number of listeners on te-from-stores- Page 15 of 19
16 listenerport was set to 20, for example, there would be 5 threads left over for other activities. As an overview, when performing listener port tuning, consider the types of loads that the retailer will incur. Another item that can be tuned during listener port tuning is the number of retries. When a message is received, if an unexpected error occurs, such as a timeout or deadlock, the message will be rolled-back and retried. The default retry count is 5 times, after which, the message will be automatically sent to a Dead Letter Queue for error handling. The retry count can be lowered to 2 or 3, reducing the amount of work the application server has to do in an error situation. The ORB and HTTP thread Pools are configured in the WebSphere Administration Console. From Application, select Servers followed by Application Servers. On the right-hand side, select server1. Under Additional Properties, select Thread Pool. Configure as needed. When putting the three thread pools together, consider that having three thread pools with a maximum of 10 threads each does not mean that 30 threads will be actively using the CPU at all times. These are thread POOLS, indicating that threads are allocated as needed. Configure each thread pool for maximum throughput in that area, and then be conservative as loads are mixed. For example, if the optimum thread pool size for Messaging is 10, but it s possible that there will be some POS Manager transactions occurring simultaneously, it might be best to lower the Message Listener Thread Pool to 8, so that a part of the CPU is always available for POS Manager. 5.3 JDBC The Database Connection Pools in EPOS typically do not require tuning. However, the Database Connection Pool should have at least as many connections as the maximum number of concurrent requests you anticipate. If the number of requests you anticipate is greater than the maximum configured in the Connection Pool, increase the size accordingly. To configure the Database Connection Pool, select Resources from the WAS Console, followed by JDBC, and then Data Sources. Select the appropriate Data Source and select Connection Pool Properties. Page 16 of 19
17 Figure 5: Configuring the Connection Pool The prepared statement cache can also be tuned. SAP has initialized this value to 100. The Tivoli Performance Viewer might determine that the retailer s usage requires this value to be increased or decreased. 6 Tuning WebSphere MQ We have found that the information provided in the WebSphere MQ tuning guide (see the Appendix for link), to be invaluable in improving the performance of the WebSphere MQ. We strongly recommend that you read the WebSphere MQ tuning guide. In summary, the following elements can be tuned: Log File Size Should be maximized. In EPOS 3.1 SP2 and beyond, this will be the default. MaxActiveChannels See SAP OSS Note In short, the number of channels must be set to a value commensurate with the number of store servers. LogFiles Primary and Secondary Log Files can be increased. SP2 and beyond defaults both values to 10. LogWrite If the Log Files are stored on a SAN, the SAN guarantees write consistency. Therefore, this value can be set to SingleWrite. The default is TripleWrite, and is slower. Page 17 of 19
18 Further tuning can be made to the way that WebSphere Application Server communicates with Web- Sphere MQ. The default EPOS method is CLIENT. This enables the Application Server and Queue Manager to be deployed on different physical servers. In situations where the Queue Manager is on the same server as the Application Server, you can use the BINDINGS method, which is significantly faster. To make the change, go into the WebSphere console, then Resources, then Queue Connection Factories. Select Triversity Transactionware Queue Connection Factory. Under Transport Type, change the value from CLIENT to BINDINGS. Repeat this process for the Topic Connection Factory. Save the changes, and restart WebSphere. Certain Operating System defaults are inappropriate for a production WebSphere MQ system. For Linux, the following document provides the necessary recommendations: nfo/exp/ae/tprf_tunelinux.html The above document is actually a WebSphere Application Server document, but we have found that MQ errors are received if these recommendations are not followed. Additionally, the ulimit value for open files must be greater than for root and trivers users. 7 Tuning EPOS Currently, EPOS does not have many system tuning parameters. The only noteworthy tuning parameter at this point is whether or not you want the XSL Templates to be cached. For EPOS 3.1 SP1 and earlier, XSL Templates are not cached by default, but you can change this setting. XSL transformations are used by the EPOS in multiple places. An earlier version of Xalan-J, the parser provided in the IBM WebSphere Java Virtual Machine, had a defect that caused problems with XSL transformations in a high-volume environment. The latest service pack for the IBM JVM, 1.5 SR7, includes this fix. This service pack is not currently installed by default; to set the XSL Template caching option, you must download and install the service pack manually. To enable XSL Template caching, set the option to com.sap.epos.xmltransformerutil.usecache=true. This is a D option to the Java command line, and you can set it in the WebSphere console, under JVM custom properties. In EPOS 3.1 SP2 and higher, this will be the default, and by setting it to false the caching will be disabled. SAP has noted significant performance improvements in Transaction Posting by using this setting. 7.1 EPOS Configuration EPOS is highly configurable. Although configurations are mostly business oriented, they can have impact on overall system performance. Listed below are some of the EPOS configurations that have performance implications. Item Lookup EPOS supports multiple ways of looking up items. Typically, an item is identified by an item key (e.g ) and item key type (e.g. UPC). Since there are multiple item key types, and EPOS allows the use of mixed key types, EPOS can be configured to find the best match by using the item key only. Although this feature is convenient and easy to configure, it will not perform as well as item lookup with both item key and key type. Page 18 of 19
19 Transaction Discount EPOS supports two types of transaction discounts - regular prorated discount and standalone discount. Regular prorated discount generates separate discount lines for each item. Standalone discount generates one discount line based on the transaction total. If the retailer's typical transaction contains a large number of items, applying a regular prorated discount doubles the transaction line count and increases server load. Receipt Archive EPOS can be configured to archive documents that are not output during sales. For example, each purchase can generate multiple optional receipts. Although only some customers will request the optional receipts to be printed, you can configure EPOS to archive all optional receipts in the database for later reference. If many such documents are configured to be archived, the total Tlog size will increase. MixMatch and Promotion MixMatch and Promotion are powerful pricing features that support the Best Price logic. Best Price logic determines the best (lowest) price for an item when there is more than one promotion applicable to it. Since business logic needs to calculate prices for each applicable promotion, item scan response times will be affected if there are many items that have many applicable promotions. 8 Appendix: Additional Resources IBM Information Centers the source of all the IBM documentation. DB2 9.1: WebSphere 6.1: WebSphere MQ 6.0: General Tuning Information WebSphere MQ Tuning: WebSphere MQ Networking Setup: nfo/exp/ae/tprf_tunelinux.html A Redbook on WRS Performance: Tuning Linux for Large Page Support: The IBM Pattern Modeling and Analysis Tool for Java Garbage Collection : WebSphere JVM Tuning: aes/ae/tprf_tunejvm_v61.html Page 19 of 19
White Paper. Major Performance Tuning Considerations for Weblogic Server
White Paper Major Performance Tuning Considerations for Weblogic Server Table of Contents Introduction and Background Information... 2 Understanding the Performance Objectives... 3 Measuring your Performance
More informationBest Practices. Deploying Optim Performance Manager in large scale environments. IBM Optim Performance Manager Extended Edition V4.1.0.
IBM Optim Performance Manager Extended Edition V4.1.0.1 Best Practices Deploying Optim Performance Manager in large scale environments Ute Baumbach (bmb@de.ibm.com) Optim Performance Manager Development
More information1 of 8 14/12/2013 11:51 Tuning long-running processes Contents 1. Reduce the database size 2. Balancing the hardware resources 3. Specifying initial DB2 database settings 4. Specifying initial Oracle database
More informationIBM Daeja ViewONE Virtual Performance and Scalability
Summary White Paper January 2016 IBM Daeja ViewONE Virtual 4.1.5 Performance and Scalability Copyright IBM Corporation 2016 Enterprise Content Management www.ibm.com No part of this document may be reproduced
More information... IBM AIX performance and tuning tips for Oracle s JD Edwards EnterpriseOne web server
IBM AIX performance and tuning tips for Oracle s JD Edwards EnterpriseOne web server Applies to JD Edwards EnterpriseOne 9.0 with tools release 8.98 or 9.1........ Diane Webster IBM Oracle International
More informationSONAS Best Practices and options for CIFS Scalability
COMMON INTERNET FILE SYSTEM (CIFS) FILE SERVING...2 MAXIMUM NUMBER OF ACTIVE CONCURRENT CIFS CONNECTIONS...2 SONAS SYSTEM CONFIGURATION...4 SONAS Best Practices and options for CIFS Scalability A guide
More informationWEBSPHERE APPLICATION SERVER
WEBSPHERE APPLICATION SERVER Introduction What is websphere, application server, webserver? WebSphere vs. Weblogic vs. JBOSS vs. tomcat? WebSphere product family overview Java basics [heap memory, GC,
More informationEsgynDB Enterprise 2.0 Platform Reference Architecture
EsgynDB Enterprise 2.0 Platform Reference Architecture This document outlines a Platform Reference Architecture for EsgynDB Enterprise, built on Apache Trafodion (Incubating) implementation with licensed
More informationIBM Tivoli Storage Manager for HP-UX Version Installation Guide IBM
IBM Tivoli Storage Manager for HP-UX Version 7.1.4 Installation Guide IBM IBM Tivoli Storage Manager for HP-UX Version 7.1.4 Installation Guide IBM Note: Before you use this information and the product
More informationCatalogic DPX TM 4.3. ECX 2.0 Best Practices for Deployment and Cataloging
Catalogic DPX TM 4.3 ECX 2.0 Best Practices for Deployment and Cataloging 1 Catalogic Software, Inc TM, 2015. All rights reserved. This publication contains proprietary and confidential material, and is
More informationTUTORIAL: WHITE PAPER. VERITAS Indepth for the J2EE Platform PERFORMANCE MANAGEMENT FOR J2EE APPLICATIONS
TUTORIAL: WHITE PAPER VERITAS Indepth for the J2EE Platform PERFORMANCE MANAGEMENT FOR J2EE APPLICATIONS 1 1. Introduction The Critical Mid-Tier... 3 2. Performance Challenges of J2EE Applications... 3
More informationWebcenter Application Performance Tuning guide
Webcenter Application Performance Tuning guide Abstract This paper describe generic tuning guideline for webcenter portal, Webcenter content, JRockit, Database and Weblogic server Vinay Kumar 18-03-2014
More informationIBM InfoSphere Streams v4.0 Performance Best Practices
Henry May IBM InfoSphere Streams v4.0 Performance Best Practices Abstract Streams v4.0 introduces powerful high availability features. Leveraging these requires careful consideration of performance related
More informationBest Practices for Setting BIOS Parameters for Performance
White Paper Best Practices for Setting BIOS Parameters for Performance Cisco UCS E5-based M3 Servers May 2013 2014 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public. Page
More informationInstalling VMware vsphere 5.1 Components
Installing VMware vsphere 5.1 Components Module 14 You Are Here Course Introduction Introduction to Virtualization Creating Virtual Machines VMware vcenter Server Configuring and Managing Virtual Networks
More informationWebSphere Application Server, Version 5. What s New?
WebSphere Application Server, Version 5 What s New? 1 WebSphere Application Server, V5 represents a continuation of the evolution to a single, integrated, cost effective, Web services-enabled, J2EE server
More information... IBM Power Systems with IBM i single core server tuning guide for JD Edwards EnterpriseOne
IBM Power Systems with IBM i single core server tuning guide for JD Edwards EnterpriseOne........ Diane Webster IBM Oracle International Competency Center January 2012 Copyright IBM Corporation, 2012.
More informationIBM Integration Bus v9.0 System Administration: Course Content By Yuvaraj C Panneerselvam
IBM Integration Bus v9.0 System Administration: Course Content By Yuvaraj C Panneerselvam 1. COURSE OVERVIEW As part of this course, you will learn how to administer IBM Integration Bus on distributed
More informationJava Without the Jitter
TECHNOLOGY WHITE PAPER Achieving Ultra-Low Latency Table of Contents Executive Summary... 3 Introduction... 4 Why Java Pauses Can t Be Tuned Away.... 5 Modern Servers Have Huge Capacities Why Hasn t Latency
More informationEstimate performance and capacity requirements for InfoPath Forms Services 2010
Estimate performance and capacity requirements for InfoPath Forms Services 2010 This document is provided as-is. Information and views expressed in this document, including URL and other Internet Web site
More informationOracle s JD Edwards EnterpriseOne IBM POWER7 performance characterization
Oracle s JD Edwards EnterpriseOne IBM POWER7 performance characterization Diane Webster IBM Oracle International Competency Center January 2012 Copyright IBM Corporation, 2012. All Rights Reserved. All
More informationPerformance Optimization for Informatica Data Services ( Hotfix 3)
Performance Optimization for Informatica Data Services (9.5.0-9.6.1 Hotfix 3) 1993-2015 Informatica Corporation. No part of this document may be reproduced or transmitted in any form, by any means (electronic,
More informationChapter 2 CommVault Data Management Concepts
Chapter 2 CommVault Data Management Concepts 10 - CommVault Data Management Concepts The Simpana product suite offers a wide range of features and options to provide great flexibility in configuring and
More informationHardware & System Requirements
Safend Data Protection Suite Hardware & System Requirements System Requirements Hardware & Software Minimum Requirements: Safend Data Protection Agent Requirements Console Safend Data Access Utility Operating
More informationDeployment Scenario: WebSphere Portal Mashup integration and page builder
Deployment Scenario: WebSphere Portal 6.1.5 Mashup integration and page builder Deployment Scenario: WebSphere Portal 6.1.5 Mashup integration and page builder...1 Abstract...2 Portal Mashup integration
More informationThe information in this article applies to both WebSphere Application Server Versions 7 and 8, except where noted.
1 of 24 05/11/2013 10:02 developerworks Technical topics WebSphere Technical library Updated for WebSphere Application Server V8 IBM WebSphere Application Server supports an ever-growing range of applications,
More informationIBM Tivoli Storage Manager for Windows Version Installation Guide IBM
IBM Tivoli Storage Manager for Windows Version 7.1.8 Installation Guide IBM IBM Tivoli Storage Manager for Windows Version 7.1.8 Installation Guide IBM Note: Before you use this information and the product
More informationIntroduction. Architecture Overview
Performance and Sizing Guide Version 17 November 2017 Contents Introduction... 5 Architecture Overview... 5 Performance and Scalability Considerations... 6 Vertical Scaling... 7 JVM Heap Sizes... 7 Hardware
More informationIntel Solid State Drive Data Center Family for PCIe* in Baidu s Data Center Environment
Intel Solid State Drive Data Center Family for PCIe* in Baidu s Data Center Environment Case Study Order Number: 334534-002US Ordering Information Contact your local Intel sales representative for ordering
More informationMcAfee epolicy Orchestrator 4.5 Hardware Sizing and Bandwidth Usage Guide
McAfee epolicy Orchestrator 4.5 Hardware Sizing and Bandwidth Usage Guide COPYRIGHT Copyright 009 McAfee, Inc. All Rights Reserved. No part of this publication may be reproduced, transmitted, transcribed,
More informationWebsphere Server 8.5 Best Practices Oracle FLEXCUBE Universal Banking Release [December] [2016]
Websphere Server 8.5 Best Practices Oracle FLEXCUBE Universal Banking Release 12.3.0.0.0 [December] [2016] Table of Contents 1. INTRODUCTION... 1-1 1.1 BACKGROUND... 1-1 1.2 BASICS OF WEBSPHERE... 1-1
More informationSQL Server 2014 Training. Prepared By: Qasim Nadeem
SQL Server 2014 Training Prepared By: Qasim Nadeem SQL Server 2014 Module: 1 Architecture &Internals of SQL Server Engine Module : 2 Installing, Upgrading, Configuration, Managing Services and Migration
More informationLotus Sametime 3.x for iseries. Performance and Scaling
Lotus Sametime 3.x for iseries Performance and Scaling Contents Introduction... 1 Sametime Workloads... 2 Instant messaging and awareness.. 3 emeeting (Data only)... 4 emeeting (Data plus A/V)... 8 Sametime
More informationIBM WebSphere Application Server V4.0. Performance. 10/02/01 Copyright 2001 IBM Corporation WS40ST11.prz Page 248 of of 28
IBM WebSphere Application Server V4.0 Performance Page 248 of 401 1 of 28 Performance Enhancements to WebSphere V4.0 Performance Enhancement Overview Dynamic Caching of Servlets/JSPs Performance Monitoring
More informationCourse: JBoss Training: JBoss AS 7 and JBoss EAP 6 Administration and Clustering Training
Course: JBoss Training: JBoss AS 7 and JBoss EAP 6 Administration and Clustering Training Course Length: Duration; 4 days Course Code: WA 2060 This training course covers both the unsupported open source
More informationBipul Sinha, Amit Ganesh, Lilian Hobbs, Oracle Corp. Dingbo Zhou, Basavaraj Hubli, Manohar Malayanur, Fannie Mae
ONE MILLION FINANCIAL TRANSACTIONS PER HOUR USING ORACLE DATABASE 10G AND XA Bipul Sinha, Amit Ganesh, Lilian Hobbs, Oracle Corp. Dingbo Zhou, Basavaraj Hubli, Manohar Malayanur, Fannie Mae INTRODUCTION
More informationSage 300 ERP. Compatibility Guide Version Revised: Oct 1, Version 6.0 Compatibility Guide i
Sage 300 ERP Compatibility Guide Version 2012 Revised: Oct 1, 2012 Version 6.0 Compatibility Guide i Overview 2 Sage ERP Accpac Contents Overview... 1 Version 2012 Compatibility... 2 All Environments...
More informationVERITAS Storage Foundation 4.0 TM for Databases
VERITAS Storage Foundation 4.0 TM for Databases Powerful Manageability, High Availability and Superior Performance for Oracle, DB2 and Sybase Databases Enterprises today are experiencing tremendous growth
More informationPerformance Best Practices Paper for IBM Tivoli Directory Integrator v6.1 and v6.1.1
Performance Best Practices Paper for IBM Tivoli Directory Integrator v6.1 and v6.1.1 version 1.0 July, 2007 Table of Contents 1. Introduction...3 2. Best practices...3 2.1 Preparing the solution environment...3
More informationWebSphere Application Server Base Performance
WebSphere Application Server Base Performance ii WebSphere Application Server Base Performance Contents WebSphere Application Server Base Performance............. 1 Introduction to the WebSphere Application
More informationSage ERP Accpac. Compatibility Guide Version 6.0. Revised: November 18, 2010
Sage ERP Accpac Compatibility Guide Version 6.0 Revised: November 18, 2010 Contents Overview... 1 Version 6.0 Compatibility... 2 All Environments... 2 Virtual Environments... 3 Additional Notes... 3 Citrix
More informationDeploying Liferay Digital Experience Platform in Amazon Web Services
Deploying Liferay Digital Experience Platform in Amazon Web Services Table of Contents Introduction................................. 1 Reference Architecture........................ 1 Overview..................................
More informationPerformance Characterization of the Dell Flexible Computing On-Demand Desktop Streaming Solution
Performance Characterization of the Dell Flexible Computing On-Demand Desktop Streaming Solution Product Group Dell White Paper February 28 Contents Contents Introduction... 3 Solution Components... 4
More informationIBM Tivoli Storage Manager for AIX Version Installation Guide IBM
IBM Tivoli Storage Manager for AIX Version 7.1.3 Installation Guide IBM IBM Tivoli Storage Manager for AIX Version 7.1.3 Installation Guide IBM Note: Before you use this information and the product it
More informationAccelerate Applications Using EqualLogic Arrays with directcache
Accelerate Applications Using EqualLogic Arrays with directcache Abstract This paper demonstrates how combining Fusion iomemory products with directcache software in host servers significantly improves
More informationJBOSS AS 7 AND JBOSS EAP 6 ADMINISTRATION AND CLUSTERING (4 Days)
www.peaklearningllc.com JBOSS AS 7 AND JBOSS EAP 6 ADMINISTRATION AND CLUSTERING (4 Days) This training course covers both the unsupported open source JBoss Application Server and the supported platform
More informationIBM MQ Appliance Performance Report Version June 2015
IBM MQ Appliance Performance Report Version 1. - June 215 Sam Massey IBM MQ Performance IBM UK Laboratories Hursley Park Winchester Hampshire 1 Notices Please take Note! Before using this report, please
More informationInstalling and configuring Apache Kafka
3 Installing and configuring Date of Publish: 2018-08-13 http://docs.hortonworks.com Contents Installing Kafka...3 Prerequisites... 3 Installing Kafka Using Ambari... 3... 9 Preparing the Environment...9
More informationSage ERP Accpac. Compatibility Guide Version 6.0. Revised: February 2, Version 6.0 Compatibility Guide
Sage ERP Accpac Compatibility Guide Version 6.0 Revised: February 2, 2012 Version 6.0 Compatibility Guide i Contents Overview... 1 Version 6.0 Compatibility... 2 All Environments... 2 Virtual Environments...
More informationAssessing performance in HP LeftHand SANs
Assessing performance in HP LeftHand SANs HP LeftHand Starter, Virtualization, and Multi-Site SANs deliver reliable, scalable, and predictable performance White paper Introduction... 2 The advantages of
More informationPlan, Install, and Configure IBM InfoSphere Information Server
Version 8 Release 7 Plan, Install, and Configure IBM InfoSphere Information Server on Windows in a Single Computer Topology with Bundled DB2 Database and WebSphere Application Server GC19-3614-00 Version
More informationThe Oracle Database Appliance I/O and Performance Architecture
Simple Reliable Affordable The Oracle Database Appliance I/O and Performance Architecture Tammy Bednar, Sr. Principal Product Manager, ODA 1 Copyright 2012, Oracle and/or its affiliates. All rights reserved.
More informationInfor Lawson on IBM i 7.1 and IBM POWER7+
Infor Lawson on IBM i 7.1 and IBM POWER7+ IBM Systems & Technology Group Mike Breitbach mbreit@us.ibm.com This document can be found on the web, Version Date: March, 2014 Table of Contents 1. Introduction...
More informationIBM iseries Models 800 and 810 for small to medium enterprises
Multi-platform management, exceptional price performance IBM iseries Models 800 and 810 for small to medium enterprises Highlights Simple, centralised Simple Windows ** Integration for management of multiple
More informationEstimate performance and capacity requirements for Access Services
Estimate performance and capacity requirements for Access Services This document is provided as-is. Information and views expressed in this document, including URL and other Internet Web site references,
More informationSage ERP Accpac. Compatibility Guide Versions 5.5 and 5.6. Revised: November 18, Compatibility Guide for Supported Versions
Sage ERP Accpac Compatibility Guide Versions 5.5 and 5.6 Revised: November 18, 2010 Compatibility Guide for Supported Versions iii Contents Overview... 1 Version 5.6 Compatibility... 2 All Environments...
More informationA GPFS Primer October 2005
A Primer October 2005 Overview This paper describes (General Parallel File System) Version 2, Release 3 for AIX 5L and Linux. It provides an overview of key concepts which should be understood by those
More informationOn BigFix Performance: Disk is King. How to get your infrastructure right the first time! Case Study: IBM Cloud Development - WW IT Services
On BigFix Performance: Disk is King How to get your infrastructure right the first time! Case Study: IBM Cloud Development - WW IT Services Authors: Shaun T. Kelley, Mark Leitch Abstract: Rolling out large
More informationBEAWebLogic. Server. Automatic and Manual Service-level Migration
BEAWebLogic Server Automatic and Manual Service-level Migration Version 10.3 Technical Preview Revised: March 2007 Service-Level Migration New in WebLogic Server 10.3: Automatic Migration of Messaging/JMS-Related
More informationIBM Education Assistance for z/os V2R2
IBM Education Assistance for z/os V2R2 Item: RSM Scalability Element/Component: Real Storage Manager Material current as of May 2015 IBM Presentation Template Full Version Agenda Trademarks Presentation
More informationExam Name: IBM Certified System Administrator - WebSphere Application Server Network Deployment V7.0
Vendor: IBM Exam Code: 000-377 Exam Name: IBM Certified System Administrator - WebSphere Application Server Network Deployment V7.0 Version: Demo QUESTION 1 An administrator would like to use the Centralized
More informationThe Google File System
The Google File System Sanjay Ghemawat, Howard Gobioff, and Shun-Tak Leung December 2003 ACM symposium on Operating systems principles Publisher: ACM Nov. 26, 2008 OUTLINE INTRODUCTION DESIGN OVERVIEW
More informationCentral Administration Console Installation and User's Guide
IBM Tivoli Storage Manager FastBack for Workstations Version 7.1 Central Administration Console Installation and User's Guide SC27-2808-03 IBM Tivoli Storage Manager FastBack for Workstations Version
More informationActian PSQL Vx Server Licensing
Actian PSQL Vx Server Licensing Overview The Actian PSQL Vx Server edition is designed for highly virtualized environments with support for enterprise hypervisor features including live application migration
More informationOptimizing Database I/O
High Performance Oracle Optimizing Database I/O Dave Pearson Quest Software Copyright 2006 Quest Software The Impact of Poor Performance Diagnostics and Optimization The Impact of Poor Performance Diagnostics
More informationWHITE PAPER AGILOFT SCALABILITY AND REDUNDANCY
WHITE PAPER AGILOFT SCALABILITY AND REDUNDANCY Table of Contents Introduction 3 Performance on Hosted Server 3 Figure 1: Real World Performance 3 Benchmarks 3 System configuration used for benchmarks 3
More informationAs you learned in Chapter 1, the architectural variations you can construct using
2 Installation and Configuration Overview As you learned in Chapter 1, the architectural variations you can construct using WebSphere Application Server V6 range from the very simple to the fairly complex.
More informationData Management in Application Servers. Dean Jacobs BEA Systems
Data Management in Application Servers Dean Jacobs BEA Systems Outline Clustered Application Servers Adding Web Services Java 2 Enterprise Edition (J2EE) The Application Server platform for Java Java Servlets
More informationReal-time Session Performance
Real-time Session Performance 2008 Informatica Corporation Overview This article provides information about real-time session performance and throughput. It also provides recommendations on how you can
More information<Insert Picture Here> MySQL Web Reference Architectures Building Massively Scalable Web Infrastructure
MySQL Web Reference Architectures Building Massively Scalable Web Infrastructure Mario Beck (mario.beck@oracle.com) Principal Sales Consultant MySQL Session Agenda Requirements for
More informationARTSYL DOCALPHA INSTALLATION GUIDE
ARTSYL DOCALPHA INSTALLATION GUIDE 1. docalpha Architecture Overview... 2 1.1. docalpha Server Components... 4 1.2. docalpha Production Environment Stations Overview... 4 1.3. docalpha Setup & Administration
More informationDATABASE SCALABILITY AND CLUSTERING
WHITE PAPER DATABASE SCALABILITY AND CLUSTERING As application architectures become increasingly dependent on distributed communication and processing, it is extremely important to understand where the
More informationWebLogic Server- Tips & Tricks for Troubleshooting Performance Issues. By: Abhay Kumar AST Corporation
WebLogic Server- Tips & Tricks for Troubleshooting Performance Issues By: Abhay Kumar AST Corporation March 1st, 2016 Contents INTRODUCTION... 3 UNDERSTAND YOUR PERFORMANCE OBJECTIVES AND SET REALISTIC
More informationMULE ESB High Availability (HA) CLUSTERING
MULE ESB High Availability (HA) CLUSTERING Availability, Reliability and Scalability Abstract: ESB offers a built-in active-active High Availability clustering capability. For applications that require
More informationHigh Availability Options
, on page 1 Load Balancing, on page 2 Distributed VPN Clustering, Load balancing and Failover are high-availability features that function differently and have different requirements. In some circumstances
More informationIMPROVING THE PERFORMANCE, INTEGRITY, AND MANAGEABILITY OF PHYSICAL STORAGE IN DB2 DATABASES
IMPROVING THE PERFORMANCE, INTEGRITY, AND MANAGEABILITY OF PHYSICAL STORAGE IN DB2 DATABASES Ram Narayanan August 22, 2003 VERITAS ARCHITECT NETWORK TABLE OF CONTENTS The Database Administrator s Challenge
More informationIBM MQ Appliance HA and DR Performance Report Model: M2001 Version 3.0 September 2018
IBM MQ Appliance HA and DR Performance Report Model: M2001 Version 3.0 September 2018 Sam Massey IBM MQ Performance IBM UK Laboratories Hursley Park Winchester Hampshire 1 Notices Please take Note! Before
More informationOracle Event Processing Extreme Performance on Sparc T5
Oracle Event Processing Extreme Performance on Sparc T5 An Oracle Event Processing (OEP) Whitepaper ORACLE WHITE PAPER AUGUST 2014 Table of Contents Introduction 2 OEP Architecture 2 Server Architecture
More informationC
C9510-317 Passing Score: 800 Time Limit: 0 min Exam A QUESTION 1 A system administrator has successfully installed the WebSphere Application Server Network Deployment core product. The administrator then
More informationQuest Central for DB2
Quest Central for DB2 INTEGRATED DATABASE MANAGEMENT TOOLS Supports DB2 running on Windows, Unix, OS/2, OS/390 and z/os Integrated database management components are designed for superior functionality
More informationDHCP Capacity and Performance Guidelines
This appendix contains the following sections: Introduction, on page Local Cluster DHCP Considerations, on page Regional Cluster DHCP Considerations, on page 6 Introduction This document provides capacity
More informationORACLG. Oracle Press. Advanced Tuning for. JD Edwards EnterpriseOne. Implementations
ORACLG Oracle Press Advanced Tuning for JD Edwards EnterpriseOne Implementations Foreword Acknowledgments Introduction... xv xvii xix 1 Outline of a Structured Tuning Methodology 1 Overview 3 Benchmarks
More informationSegregating Data Within Databases for Performance Prepared by Bill Hulsizer
Segregating Data Within Databases for Performance Prepared by Bill Hulsizer When designing databases, segregating data within tables is usually important and sometimes very important. The higher the volume
More informationOracle Transportation Management. Application Scalability Guide Release 6.3 Part No. E
Oracle Transportation Management Application Scalability Guide Release 6.3 Part No. E38434-04 January 2014 Oracle Transportation Management Application Scalability Guide, Release 6.3 Part No. E38434-04
More informationProduct Guide. McAfee Performance Optimizer 2.2.0
Product Guide McAfee Performance Optimizer 2.2.0 COPYRIGHT Copyright 2017 McAfee, LLC TRADEMARK ATTRIBUTIONS McAfee and the McAfee logo, McAfee Active Protection, epolicy Orchestrator, McAfee epo, McAfee
More informationIBM Active Cloud Engine centralized data protection
IBM Active Cloud Engine centralized data protection Best practices guide Sanjay Sudam IBM Systems and Technology Group ISV Enablement December 2013 Copyright IBM Corporation, 2013 Table of contents Abstract...
More informationAbout Terracotta Ehcache. Version 10.1
About Terracotta Ehcache Version 10.1 October 2017 This document applies to Terraco a Ehcache Version 10.1 and to all subsequent releases. Specifications contained herein are subject to change and these
More informationAutomated Storage Tiering on Infortrend s ESVA Storage Systems
Automated Storage Tiering on Infortrend s ESVA Storage Systems White paper Abstract This white paper introduces automated storage tiering on Infortrend s ESVA storage arrays. Storage tiering can generate
More informationAndy Mendelsohn, Oracle Corporation
ORACLE DATABASE 10G: A REVOLUTION IN DATABASE TECHNOLOGY Andy Mendelsohn, Oracle Corporation EXECUTIVE OVERVIEW Oracle Database 10g is the first database designed for Enterprise Grid Computing. Oracle
More informationThe Modern Mainframe At the Heart of Your Business
The Modern Mainframe At the Heart of Your Business IT Service Management Service Oriented Finance Needs to Satisfy Service Levels For Their Critical Applications I must make sure to meet my service levels.
More informationSurveillance Dell EMC Isilon Storage with Video Management Systems
Surveillance Dell EMC Isilon Storage with Video Management Systems Configuration Best Practices Guide H14823 REV 2.0 Copyright 2016-2018 Dell Inc. or its subsidiaries. All rights reserved. Published April
More informationORACLE IDENTITY MANAGER SIZING GUIDE. An Oracle White Paper March 2007
ORACLE IDENTITY MANAGER SIZING GUIDE An Oracle White Paper March 2007 Note The following is intended to provide consideration guidelines for sizing Oracle Identity Manager. It is intended for information
More informationPerformance Benchmark and Capacity Planning. Version: 7.3
Performance Benchmark and Capacity Planning Version: 7.3 Copyright 215 Intellicus Technologies This document and its content is copyrighted material of Intellicus Technologies. The content may not be copied
More informationDell EMC CIFS-ECS Tool
Dell EMC CIFS-ECS Tool Architecture Overview, Performance and Best Practices March 2018 A Dell EMC Technical Whitepaper Revisions Date May 2016 September 2016 Description Initial release Renaming of tool
More informationAvoiding the Cost of Confusion: SQL Server Failover Cluster Instances versus Basic Availability Group on Standard Edition
One Stop Virtualization Shop Avoiding the Cost of Confusion: SQL Server Failover Cluster Instances versus Basic Availability Group on Standard Edition Written by Edwin M Sarmiento, a Microsoft Data Platform
More informationCentral Administration Console Installation and User's Guide
IBM Tivoli Storage Manager FastBack for Workstations Version 7.1.1 Central Administration Console Installation and User's Guide SC27-2808-04 IBM Tivoli Storage Manager FastBack for Workstations Version
More informationRIGHTNOW A C E
RIGHTNOW A C E 2 0 1 4 2014 Aras 1 A C E 2 0 1 4 Scalability Test Projects Understanding the results 2014 Aras Overview Original Use Case Scalability vs Performance Scale to? Scaling the Database Server
More informationIBM Emulex 16Gb Fibre Channel HBA Evaluation
IBM Emulex 16Gb Fibre Channel HBA Evaluation Evaluation report prepared under contract with Emulex Executive Summary The computing industry is experiencing an increasing demand for storage performance
More informationMicrosoft SQL Server Fix Pack 15. Reference IBM
Microsoft SQL Server 6.3.1 Fix Pack 15 Reference IBM Microsoft SQL Server 6.3.1 Fix Pack 15 Reference IBM Note Before using this information and the product it supports, read the information in Notices
More informationTrueSight 10 Architecture & Scalability Q&A Best Practice Webinar 8/18/2015
Q: Where can I find the TrueSight Operations Management Best Practice material? A: TrueSight OM Best Practice material is published on the BMC Communities web site at the following link. https://communities.bmc.com/docs/doc-37443
More information