<Insert Picture Here> Controlling resources in an Exadata environment
|
|
- Francine Newton
- 6 years ago
- Views:
Transcription
1
2 <Insert Picture Here> Controlling resources in an Exadata environment
3 Agenda Exadata Security Flash Cache and Log Storage Indexes Parallel Execution
4 Agenda Exadata Security Flash Cache and Log Storage Indexes Parallel Execution
5 EXADATA SECURITY
6 Exadata Security Model Exadata Storage Interconnect uses IP and InfiniBand Limit the storage connection to specific adapters Defined when creating the cell This is physical security, robust and easy to maintain If systems (DB nodes) are connected to InfiniBand See Exadata cells See / use (empty) grid disks unless Exadata Security is setup Per-database access-control is possible Open Security, ASM-Scoped, Database-Scoped Security
7 Security setup on Exadata Database nodes are customer responsibility No firewall setup Password limitations in place 90 days, case restrictions, sizes, 5 attempts etc Exadata storage cells are secured Password restrictions 90 days, case restrictions, sizes, 5 attempts etc Firewall setup Only SSH access through Mgmt and IB network OS activity monitored Automatic log-off of SSH sessions
8 Open Security (default) No access restrictions Useful for environments without security requirements. Default security mode after creating new storage cell No security setup required Works out of the box. No ACLs or access-limitations Any database can access all grid-disks Normal ASM protection is in place through headers Mistakes (force addition) could happen
9 ASM-Scoped Security Security per ASM cluster ASM cluster identified by unique key in local file on DB node Alias is defined in Exadata cell for each unique key Griddisks are enabled for specific alias(es) Only one key needs to be set up per ASM cluster Same key on all nodes in of the same ASM cluster Every Griddisk needs to be enabled Aliases in properties of Griddisk (field AvailableTo)
10 Database-Scoped Security Each database needs different key Each database, not each instance! Make sure all DB in a cluster have same key setup If no key has been setup, fallback to ASM security If wrong key has been setup, access is denied Access per GridDisk (availableto) field Each cell gets alias for unique key Access by setting alias(es) in the availableto field Multiple entries are allowed in the availableto field ASM cluster used must have access too! Both Database and ASM must have access to GridDisk
11 Creating a Security Key A new key can be generated on any cell: CellCLI> CREATE KEY 66e12adb bf f5050 Use result on all cells en DB nodes Do not generate a key on each cell, one key is enough Do not generate a key for each instance, just each database User is responsible for copying the key to the right locations
12 Setting up ASM-Scoped Security 1. Start with Open Security, tested and working 2. Shutdown all databases and ASM 3. Create a new key on any cell 4. Copy key file cellkey.ora to all hosts in cluster 5. Copy key to all cells in the storage pool 6. Set up ACLs to allow ASM on all cells 7. Restart all databases and ASM All databases using this ASM can access Griddisks. No other user can access any of the Exadata storage.
13 ASM-Scoped Security How to setup? On any cell CellCLI> CREATE KEY 66e12adb bf f5050 Lookup the name of the ASM cluster SQL> SHOW PARAMETER db_unique_name Create cellkey.ora file on ASM node Located in /etc/oracle/cell/network-config/cellkey.ora Permissions 640 #cellkey.ora file for ASM key=<unique key> (66e12adb bf f5050) asm=<db_unique_name> (+asm) realm=<any name, optional> (my_realm)
14 ASM-Scoped Security How to setup? (continued..) On all of the the cells (not just one) ASSIGN KEY FOR +asm='66e12adb bf f5050' Create new Grid disks with ACL by default CREATE GRIDDISK ALL PREFIX=sales, availableto='+asm' Or change ACL for existing cells ALTER GRIDDISK ALL availableto='+asm' ALTER GRIDDISK sales_cd_1_cell01, sales_cd_2_cell01, sales_cd_3_cell01, sales_cd_4_cell01, sales_cd_5_cell01, sales_cd_6_cell01 availableto='+asm'
15 Setting Up Database-Scoped Security 1. Start with ASM-Scoped Security, tested and working. 2. Shutdown all databases and ASM 3. Create a key for each database (not each instance) 4. Copy key file cellkey.ora to each database home 5. Copy key to all cells in the storage pool 6. Set up ACLs to allow each database, as needed. 7. Restart all databases and ASM Each database can access its own grid-disks. If a key is defined, no other user can access any of the Exadata storage.
16 Database-Scoped Security How to setup? Create new key on any cell CellCLI> CREATE KEY 51a826646ebe1f29e33c6ed7c4965c9a Create cellkey.ora file on Database node Located in $ORACLE_HOME/admin/<db_name>/pfile//cellkey.ora Permissions 640 #cellkey.ora file for Database key=<unique key> (51a826646ebe1f29e33c6ed7c4965c9a) asm=<db_unique_name_for_the_asm> (+asm) realm=<any name, optional> (my_realm)
17 Database-Scoped Security How to setup? (continued..) On all of the cells (not just one!) ASSIGN KEY FOR PROD='51a826646ebe1f29e33c6ed7c4965c9a' Use DB_UNIQUE_KEY for key alias! Create new Grid disks with ACL by default CREATE GRIDDISK ALL PREFIX=sales, availableto='+asm,prod' Or change ACL for existing cells ALTER GRIDDISK ALL availableto='+asm,prod' ALTER GRIDDISK sales_cd_1_cell01, sales_cd_2_cell01, sales_cd_3_cell01, sales_cd_4_cell01, sales_cd_5_cell01, sales_cd_6_cell01 availableto='+asm,prod Make sure you repeat existing values in the availableto! Alter GRIDDISK will overwrite every value previous set
18 Adding/Removing Databases Keep cellkey.ora in each database directory It doesn t hurt, makes the environment more secure Retrieve list of defined keys from the cells CellCLI> LIST KEY +asm 66e12adb bf f5050 PROD b67d5587fe728118af47c57ab8da650a Issue ALTER GRIDDISK to change the availableto field Remember that ALTER GRIDDISK overwrites the contents of the availableto field!
19 Database-Scoped to ASM-Scoped 1. Shutdown all databases and ASM 2. Remove all database keys, from cells CellCLI> ASSIGN KEY FOR PROD='' 3. Delete cellkey.ora from database directory(s) 4. Remove all databases from Grid-Disk availableto CellCLI> ALTER GRIDDISK ALL availableto='+asm' 5. Restart ASM and databases.
20 ASM-Scoped to Open Security 1. Shutdown all databases and ASM 2. Remove ASM keys, from cells CellCLI> ASSIGN KEY FOR +asm='' 3. Delete cluster cellkey.ora from hosts rm /etc/oracle/cell/network-config/cellkey.ora 4. Remove ASM from Grid-Disk availableto CellCLI> ALTER GRIDDISK ALL availableto='' 5. Restart ASM and databases.
21 Exadata Security Best Practices When configuring security, the flow is always Open security to ASM-scoped security to Database-scoped security. Make sure disk security setup is consistent All disks in an ASM group and all disks for a database When using RAC, cellkey.ora and permissions are vital Make sure they are the same on any node in the cluster. Don t mix ASM and DB scoped security in a system Use DCLI to automate security setup
22 Exadata Security Summary Prevent access to Grid-Disks using keys Key on DB nodes level for ASM scoped Security Key on DB Home directory for DB scoped Security All nodes in ASM cluster or all DB Instances use the same key Create alias for keys on Storage cell level Setup is per Griddisk on Storage Cell level Availableto: field needs both ASM and DB level access Shutdown all instances before making changes One wrong command can cause issues in the database
23 Q U E S T I O N S A N S W E R S On Exadata Security
24 Agenda Exadata Security Flash Cache and Log Storage Indexes Parallel Execution
25 FLASH CACHE
26 World s First Flash Database Machine 5TB of Flash Memory Smart Flash Cache Million I/Os per Second Sub-Millisecond I/O time 50GB/sec Flash Scan 3x to 50x Compression on Flash
27 Semiconductor Cache Hierarchy Massive throughput and IOs through innovative Cache Hierarchy Database DRAM Cache 400GB raw capacity Up to 4TB compressed user data 100 GB/sec Exadata Smart Flash Cache 5TB raw capacity Up to 50TB compressed user data 50 GB/sec raw scan 1 million IO/sec Exadata disks 100TB or 336TB raw Up to 500TB compressed user data 21 GB/sec scan 50K IO/sec
28 Sun Flash Accelerator F20 PCIe Card 96GB Storage Capacity 4 x 24GB Flash modules/doms 6GB reserved for failures x8 PCIe card Super Capacitor backup Optimized for Database caching Fully integrated into the Exadata V2 database machine. Measured end-to-end performance 3.6GB/sec/cell or 50GB/sec per DBM 75,000 IOPs/cell or 1 million IOPS per DBM
29 How can we use Flash Storage Exadata Smart Flash Cache Store frequently used blocks (data and index) on Flash storage Exadata Smart Flash Logging Use Flash as a buffer for your redolog writes Exadata Flash-Based Storage Uses flash as permanent high speed storage Or ALL of the above As we have 4 cards with 96GB of Flash memory We can split cards into separate sections with different functionality
30 Flash storage as Flash Cache What is Cached? Frequently accessed data and index blocks Control file reads and writes File header reads and writes DBA can also influence caching priorities What is Not Cached? I/O to mirror copies Backup related I/O Data Pump I/O Data file formatting Table scans don t monopolize the cache
31 Flash Storage as Flash Logging Redologs are sequential writes Disk DRAM cache usually as fast (or faster) than Flash writes Provided Disk cache gets flushed fast enough Can be bottleneck on high write workloads Redolog will write to Flash Cache and DRAM cache At the same time First one to finish will signal write complete to the DB Starting Cell Patchset / BP11 DB version Can be turned on or off via the IO Resource Manager
32 Flash logging example
33 Flash Storage as Datafile storage Using Flash as DB storage reduces Flash space 2x when using Normal Redundancy 3x when using High Redundancy Only use for heave scattered reads and writes Sequential writes are usually faster using Lots of disk and disk cache Dedicated disks so disk-arm does not have to move Can be used in a partitioning or ILM scheme Most (almost all) customers do not use this feature
34 Flash Best Practices Use Flash only for production Unless you have enough (speed and space) for everything Use Flash logging for redo-log bottlenecks Use Flash Cache and Logging instead of File storage Use all available Flash space Most performance benefit will be from reading and redologs Only change after AWR reports issues with small writes Use as much for Cache and Logging as possible If you need file storage, only use the part of Flash you need Keep the other parts for Cache and Logging
35 Exadata Smart Flash Cache Commands Creating Flash Cache by default CREATE CELL flashcache Creating Flash Cache explicitly CREATE FLASHCACHE ALL size=100g Users can prioritize caching of tables ALTER TABLE table_name STORAGE (CELL_FLASH_CACHE KEEP) Without the setting, individual tables and indexes are cached Display Flash Cache Configuration LIST FLASHCACHE DETAIL
36 Control access to flash cache Prevent databases to access flash cache Low priority databases Test databases Etc New attribute introduced for IORM: FlashCache Cellcli> ALTER IORMPLAN dbplan=((name=prod, flashcache=on), (name=dev, flashcache=on), (name=test, flashcache=off), (name=other, flashcache=off))
37 Exadata Flash Summary 5+ Terabytes of Flash available in Exadata Machine About 400Mb per Exadata Storage Cell No controller bottlenecks; cards instead of disks 3.6GB/sec/cell or 50GB/sec per DBM 75,000 IOPs/cell or 1 million IOPS per DBM Use it as.. Exadata Flash Cache Exadata Flash Logging Exadata Flash file storage Needs Normal of High Redundancy Only use it if AWR report shows issues with scattered writes
38 Q U E S T I O N S A N S W E R S On Exadata Flash storage
39 Agenda Exadata Security Flash Cache and Log Storage Indexes Parallel Execution
40 STORAGE INDEXES
41 Biggest performance Bottleneck Disks are a big bottleneck for a database Its all about getting to data as fast as possible Flash disks are much faster than normal disks Normal databases need to read data To determine if the where clause applies to the data More data is read than needed Indexes help a lot But not-reading unneeded data would be faster!
42 Introducing Exadata Storage Indexes Memory based index of contents of blocks Index automatically build using memory of the Exadata cells Information about a block only stored in one place For each column in frequently accessed blocks Minimum and Maximum value is stored Occurrence of NULL values is stored Values automatically stored after first read of the block Values in RAM Take only small amount of memory Destroyed when power is removed (reboot, crash etc)
43 How do Storage Indexes work An example.. Block 1 Block 2 Block 3 A B C D A B C D A B C D Min B = 1 Max B = Min B = 3 Max B = Min B = 6 Max B = 9 select * from table where B < 2 Only block 1 matches Other blocks do not need to be retrieved Saves huge amounts of IO per second Only works with Smart Scans / Direct Reads
44 Storage Index with Partitions Example Orders Table Order# Order_Date Ship_Date Item Partitioning Column Queries on Ship_Date do not benefit from Order_Date partitioning However Ship_date and Order# are highly correlated with Order_Date e.g. Ship dates are usually near Order_Dates and are never less Storage index provides partition pruning like performance for queries on Ship_Date and Order# Takes advantage of ordering created by partitioning or sorted loading
45 Measuring performance Use V$SYSSTAT for information cell physical IO bytes saved by storage index
46 Storage Indexes - Summary In memory storage of block characteristics Highest and Lowest value of each column in a block Build when the block is accessed the first time Stays in memory Destroyed when cellsrv is down (power down, reboot etc) No communication between servers Low memory footprint Cannot turn it on or off No extra license fee
47 Q U E S T I O N S A N S W E R S On Storage Indexes
48 Agenda Exadata Security Flash Cache and Log Storage Indexes Parallel Execution
49 PARALLEL EXECUTION
50 Automated Degree of Parallelism An 11gR2 generic feature In the past, tuning parallelism was a manual process one degree of parallelism does not fit all queries too much parallelism could flood the entire system Automated Degree of Parallelism automatically decides If a statement will execute in parallel or not (serial execution would take longer than a set threshold 30 secs) What degree of parallelism the statement will use Optimizer derives the DoP from the statement based on resource requirements Uses the cost of all scan operations Balanced against a max limit of parallelism
51 Automated Degree of Parallelism How it works SQL statement Statement is hard parsed And optimizer determines the execution plan If estimated time greater than threshold Optimizer determines ideal DOP If estimated time less than threshold PARALLEL_MIN_TIME_THRESHOLD Actual DOP = MIN(default DOP, ideal DOP) Statement executes serially Statement executes in parallel
52 Parallel Statement Queuing Automatic Degree of Parallelism means More statements will run in parallel Potential system thrashing due to too many processes Parallel Statement Queuing automatically decides if a statement can execute immediately or not When a parallel statement starts it checks if enough parallel servers (aka Parallel Query Slaves) are available If not, queue the statement Once enough parallel servers become available, statement is de-queued and executed
53 Parallel Statement Queuing How it works SQL statements Statement is parsed and Oracle automatically determines DOP If not enough parallel servers available queue FIFO Queue If enough parallel servers available execute immediately When the required number of parallel servers become available the first stmt on the queue is dequeued and executed 8 128
54 Parallel Statement Queuing Monitoring in Enterprise Manager Click on the SQL ID for more info Clock symbol indicated a queued statement Awaiting screen shot from EM
55 Parallel Statement Queuing Monitoring in Enterprise Manager Wait event indicates stmt is at the head of the queue
56 In-Memory Parallel Execution Data warehouse environments can have large amounts of memory that is not always used An algorithm places fragments of an object (partitions) in memory on different nodes Compression gets more data in memory Parallel servers (aka PQ Slaves) are then executed on the corresponding nodes Requires Automatic Degree of Parallelism Real Application Clusters
57 In-Memory Parallel Execution How it works SQL statement Determine the size of the table being looked at Table is a good candidate for In-Memory Parallel Execution Fragments of Table are read into each node s buffer cache Table is extremely small Table is extremely Large Read into the buffer cache on any node Always use direct read from disk Only parallel server on the same RAC node will access each fragment
58 Source: Transaction Processing Council, as of 9/14/2009: Oracle on HP Bladesystem c-class 128P RAC, 1,166,976 available 12/1/09. Exasol on PRIMERGY RX300 S4, 1,018,321 available 08/01/08. ParAccel on SunFire X ,842 $4.57 available 10/29/07. In-Memory Parallel Execution QphH: 1 TB TPC-H 1,166,976 A single database machine has over 400GB of memory usable for caching 1,018, ,842 ParAccel Exasol Oracle & HP Exadata Faster than specialized in-memory warehouse databases Database release 11.2 introduces parallel query processing on memory cached data Harnesses memory capacity of entire database cluster for queries Foundation for world record 1TB TPC-H Exadata Hybrid Columnar Compression enables multi-terabyte tables or partitions to be cached in memory Memory has 100x more bandwidth than Disk
59 Paralellism - Summary Parallelism is important Speed up queries, uses all resources available No need for Parallelism tuning Needs init.ora parameter Optimizer decides on parallelism based on statistics No need for Parallelism limitation Statements will wait for free slaves Prevents overload on the system Queries are still faster than single threaded execution Parallelism can cause in-memory behaviour Qualified tables can be stored in memory automatically
60 Q U E S T I O N S A N S W E R S On Storage Indexes
61 Q U E S T I O N S A N S W E R S
62 Now you do it!
63
<Insert Picture Here> Controlling resources in an Exadata environment
Controlling resources in an Exadata environment Agenda Smart IO IO Resource Manager Compression Hands-on time Exadata Security Flash Cache Storage Indexes Parallel Execution Agenda
More informationExadata X3 in action: Measuring Smart Scan efficiency with AWR. Franck Pachot Senior Consultant
Exadata X3 in action: Measuring Smart Scan efficiency with AWR Franck Pachot Senior Consultant 16 March 2013 1 Exadata X3 in action: Measuring Smart Scan efficiency with AWR Exadata comes with new statistics
More informationExadata Implementation Strategy
Exadata Implementation Strategy BY UMAIR MANSOOB 1 Who Am I Work as Senior Principle Engineer for an Oracle Partner Oracle Certified Administrator from Oracle 7 12c Exadata Certified Implementation Specialist
More informationExadata Implementation Strategy
BY UMAIR MANSOOB Who Am I Oracle Certified Administrator from Oracle 7 12c Exadata Certified Implementation Specialist since 2011 Oracle Database Performance Tuning Certified Expert Oracle Business Intelligence
More informationB. Using Data Guard Physical Standby to migrate from an 11.1 database to Exadata is beneficial because it allows you to adopt HCC during migration.
Volume: 71 Questions Question No : 1 Which two statements are true about migrating your database to Exadata? A. Because Exadata uses InfiniBand, in order to migrate your database to Exadata, you must have
More informationThe following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into
The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material,
More informationConsolidate with Oracle Exadata
Consolidate with Oracle Exadata Manage Resources and Availability - CON7770 Sue K. Lee, Director of Development René Kundersma, Consulting Member of Tech. Staff Oracle Server Technologies Oct 1, 2014 Safe
More informationThe Role of Database Aware Flash Technologies in Accelerating Mission- Critical Databases
The Role of Database Aware Flash Technologies in Accelerating Mission- Critical Databases Gurmeet Goindi Principal Product Manager Oracle Flash Memory Summit 2013 Santa Clara, CA 1 Agenda Relational Database
More informationStorage Optimization with Oracle Database 11g
Storage Optimization with Oracle Database 11g Terabytes of Data Reduce Storage Costs by Factor of 10x Data Growth Continues to Outpace Budget Growth Rate of Database Growth 1000 800 600 400 200 1998 2000
More informationOracle Exadata Recipes
Oracle Exadata Recipes A Problem-Solution Approach John Clarke Apress- Contents About the Author About the Technical Reviewer Acknowledgments Introduction xxxiii xxxv xxxvii xxxix Part 1: Exadata Architecture
More information<Insert Picture Here> Introducing Exadata X3
Introducing Exadata X3 Exadata X3 Hardware Overview Overall Exadata Architecture remains the same - Working great, no need for change - DB Machine names change from X2 to X3 (e.g.
More informationWas ist dran an einer spezialisierten Data Warehousing platform?
Was ist dran an einer spezialisierten Data Warehousing platform? Hermann Bär Oracle USA Redwood Shores, CA Schlüsselworte Data warehousing, Exadata, specialized hardware proprietary hardware Introduction
More informationOracle Exadata Performance
Yes. You still need to tune. By Kathy Gibbs, Product Manager Presentation to NYOUG Winter General Meeting 12/2011 Confio Software 4772 Walnut Street, Suite 100 Boulder, CO 80301 www.confio.com Introduction
More informationMaximize Database Join and Sort Performance Utilizing Exadata Flash
Managed Services Cloud Services Consulting Services Licensing Maximize Database Join and Sort Performance Utilizing Exadata Flash Kasey Parker Sr. Enterprise Architect Kasey.Parker@centroid.com Centroid
More informationArup Nanda Longtime Oracle DBA (and now DMA)
Arup Nanda Longtime Oracle DBA (and now DMA) Why this Session? If you are an Oracle DBA Familiar with RAC, 11gR2 and ASM about to be a Database Machine Administrator (DMA) How much do you have to learn?
More informationExadata for Oracle DBAs. Arup Nanda Longtime Oracle DBA (and now DMA)
Arup Nanda Longtime Oracle DBA (and now DMA) Why this Session? If you are an Oracle DBA Familiar with RAC, 11gR2 and ASM about to be a Database Machine Administrator (DMA) How much do you have to learn?
More information<Insert Picture Here> South Fla Oracle Users Group Oracle/Sun Exadata Database Machine June 3, 2010
South Fla Oracle Users Group Oracle/Sun Exadata Database Machine June 3, 2010 Safe Harbor Statement The following is intended to outline our general product direction. It is intended
More informationOracle Exadata X7. Uwe Kirchhoff Oracle ACS - Delivery Senior Principal Service Delivery Engineer
Oracle Exadata X7 Uwe Kirchhoff Oracle ACS - Delivery Senior Principal Service Delivery Engineer 05.12.2017 Oracle Engineered Systems ZFS Backup Appliance Zero Data Loss Recovery Appliance Exadata Database
More information<Insert Picture Here> Oracle Exadata Database Machine Introduction and hardware
Oracle Exadata Database Machine Introduction and hardware Disclaimer This PTS workshop/briefing is intended to provide training and guidance in the latest Oracle products specifically
More informationKey to A Successful Exadata POC
BY UMAIR MANSOOB Who Am I Oracle Certified Administrator from Oracle 7 12c Exadata Certified Implementation Specialist since 2011 Oracle Database Performance Tuning Certified Expert Oracle Business Intelligence
More informationJapanCert 専門 IT 認証試験問題集提供者
JapanCert 専門 IT 認証試験問題集提供者 http://www.japancert.com 1 年で無料進級することに提供する Exam : 1z0-485 Title : Exadata Database Machine Models X3-2 and X3-8 Implementation Essentials Vendor : Oracle Version : DEMO 1 / 5
More informationOracle Exadata: Strategy and Roadmap
Oracle Exadata: Strategy and Roadmap - New Technologies, Cloud, and On-Premises Juan Loaiza Senior Vice President, Database Systems Technologies, Oracle Safe Harbor Statement The following is intended
More informationAutomatic Parallel Execution Presented by Joel Goodman Oracle University EMEA
Automatic Parallel Execution Presented by Joel Goodman Oracle University EMEA Copyright 2011, Oracle. All rights reserved. Topics Automatic Parallelism Parallel Statement Queuing In Memory Parallel Query
More informationWorkload Management for an Operational Data Warehouse Oracle Database Jean-Pierre Dijcks Sr. Principal Product Manager Data Warehousing
Workload Management for an Operational Data Warehouse Oracle Database 11.2.0.2 Jean-Pierre Dijcks Sr. Principal Product Manager Data Warehousing Agenda What is a concurrent environment? Planning for workload
More information1Z Oracle Exadata X5 Administration Exam Summary Syllabus Questions
1Z0-070 Oracle Exadata X5 Administration Exam Summary Syllabus Questions Table of Contents Introduction to 1Z0-070 Exam on Oracle Exadata X5 Administration... 2 Oracle 1Z0-070 Certification Details:...
More informationWhat is and What is not Exadata Engineered System
What is and What is not Exadata Engineered System Radosław Cisz rcisz@dataconsulting.pl Introduction to Database Machine Fully integrated platform for Oracle Databases High performance and High availability
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 information1Z Primavera P6 Enterprise Project Portfolio Management Essentials.
Oracle 1Z0-536 Primavera P6 Enterprise Project Portfolio Management Essentials TYPE: DEMO http://www.examskey.com/1z0-536.html Examskey Oracle 1Z0-536 exam demo product is here for you to test the quality
More informationOracle Exam 1z0-027 Oracle Exadata Database Machine X3 Administration Version: 6.13 [ Total Questions: 72 ]
s@lm@n Oracle Exam 1z0-027 Oracle Exadata Database Machine X3 Administration Version: 6.13 [ Total Questions: 72 ] Question No : 1 Which two are Oracle recommendations for media based backups performed
More informationOracle EXAM - 1Z Oracle Exadata Database Machine Administration, Software Release 11.x Exam. Buy Full Product
Oracle EXAM - 1Z0-027 Oracle Exadata Database Machine Administration, Software Release 11.x Exam Buy Full Product http://www.examskey.com/1z0-027.html Examskey Oracle 1Z0-027 exam demo product is here
More informationOracle Performance on M5000 with F20 Flash Cache. Benchmark Report September 2011
Oracle Performance on M5000 with F20 Flash Cache Benchmark Report September 2011 Contents 1 About Benchware 2 Flash Cache Technology 3 Storage Performance Tests 4 Conclusion copyright 2011 by benchware.ch
More informationOracle Exadata. Smart Database Platforms - Dramatic Performance and Cost Advantages. Juan Loaiza Senior Vice President Oracle Database Systems
Oracle Exadata Smart Database Platforms - Dramatic Performance and Cost Advantages Juan Loaiza Senior Vice President Oracle Database Systems Exadata X5-2 Exadata X5-8 SuperCluster M7-8 Exadata Vision Dramatically
More informationOracle Database Exadata Cloud Service Exadata Performance, Cloud Simplicity DATABASE CLOUD SERVICE
Oracle Database Exadata Exadata Performance, Cloud Simplicity DATABASE CLOUD SERVICE Oracle Database Exadata combines the best database with the best cloud platform. Exadata is the culmination of more
More informationExadata Resource Management: Achieve Mind- blowing Performance, Consistently
Managed Services Cloud Services Consul3ng Services Licensing Exadata Resource Management: Achieve Mind- blowing Performance, Consistently UTOUG Fall Symposium 2015 Kasey Parker Enterprise Architect Kasey.Parker@centroid.com
More informationOracle Exadata Implementation Strategy HHow to Implement Exadata In-house
Oracle Exadata Implementation Strategy HHow to Implement Exadata In-house Introduction Oracle Exadata The Oracle Exadata is a database machine, which has now been present since 2008. A number of financial
More informationExadata. Presented by: Kerry Osborne. February 23, 2012
Exadata Presented by: Kerry Osborne February 23, 2012 whoami Worked with Oracle Since 1982 (V2) Working with Exadata since early 2010 Work for Enkitec (www.enkitec.com) (Enkitec owns a Half Rack V2/X2)
More informationLearning Objectives : This chapter provides an introduction to performance tuning scenarios and its tools.
Oracle Performance Tuning Oracle Performance Tuning DB Oracle Wait Category Wait AWR Cloud Controller Share Pool Tuning 12C Feature RAC Server Pool.1 New Feature in 12c.2.3 Basic Tuning Tools Learning
More informationOracle Database In-Memory
Oracle Database In-Memory Mark Weber Principal Sales Consultant November 12, 2014 Row Format Databases vs. Column Format Databases Row SALES Transactions run faster on row format Example: Insert or query
More informationOracle Cloud 1Z0-338
Oracle Cloud 1Z0-338 Oracle Exadata Database Machine and Cloud Service 2017 Implementation Essentials Thank You for Downloading 1Z0-338 Updated Exam Questions oracle/1z0-338-pdf-exam-dumps Version: 6.0
More informationAchieving Memory Level Performance: Secrets Beyond Shared Flash
Achieving Memory Level Performance: Secrets Beyond Shared Flash Kothanda (Kodi) Umamageswaran Vice President, Exadata Development Gurmeet Goindi Exadata Product Management Safe Harbor Statement The following
More informationOracle Database 12c Performance Management and Tuning
Course Code: OC12CPMT Vendor: Oracle Course Overview Duration: 5 RRP: POA Oracle Database 12c Performance Management and Tuning Overview In the Oracle Database 12c: Performance Management and Tuning course,
More informationCopyright 2018, Oracle and/or its affiliates. All rights reserved.
Oracle Database In- Memory Implementation Best Practices and Deep Dive [TRN4014] Andy Rivenes Database In-Memory Product Management Oracle Corporation Safe Harbor Statement The following is intended to
More informationThe following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into
The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material,
More informationPrepAwayExam. High-efficient Exam Materials are the best high pass-rate Exam Dumps
PrepAwayExam http://www.prepawayexam.com/ High-efficient Exam Materials are the best high pass-rate Exam Dumps Exam : 1z1-070 Title : Oracle Exadata X5 Administration Vendor : Oracle Version : DEMO Get
More informationSUN ORACLE DATABASE MACHINE
SUN ORACLE DATABASE MACHINE FEATURES AND FACTS FEATURES From 1 to 8 database servers From 1 to 14 Sun Oracle Exadata Storage Servers Each Exadata Storage Server includes 384 GB of Exadata QDR (40 Gb/second)
More informationActual4Test. Actual4test - actual test exam dumps-pass for IT exams
Actual4Test http://www.actual4test.com Actual4test - actual test exam dumps-pass for IT exams Exam : 1z1-027 Title : Oracle Exadata Database Machine Administration, Software Release 11.x Vendor : Oracle
More informationAn Oracle White Paper November A Technical Overview of the Oracle Exadata Database Machine and Exadata Storage Server
An Oracle White Paper November 2012 A Technical Overview of the Oracle Exadata Database Machine and Exadata Storage Server Introduction... 2 Exadata Product Family... 4 The Exadata Engineered System...
More informationAn Oracle White Paper June Exadata Hybrid Columnar Compression (EHCC)
An Oracle White Paper June 2011 (EHCC) Introduction... 3 : Technology Overview... 4 Warehouse Compression... 6 Archive Compression... 7 Conclusion... 9 Introduction enables the highest levels of data compression
More informationWhat Really Sets Apart Exadata from the Rest
1 What Really Sets Apart Exadata from the Rest Presented By: Zahid Anwar, Principal Oracle DBA Consultant 3 rd December 2018 Company Classification: Public A bit about myself Principal Oracle DBA Consultant
More informationMellanox InfiniBand Solutions Accelerate Oracle s Data Center and Cloud Solutions
Mellanox InfiniBand Solutions Accelerate Oracle s Data Center and Cloud Solutions Providing Superior Server and Storage Performance, Efficiency and Return on Investment As Announced and Demonstrated at
More informationOracle on RAID. RAID in Practice, Overview of Indexing. High-end RAID Example, continued. Disks and Files: RAID in practice. Gluing RAIDs together
RAID in Practice, Overview of Indexing CS634 Lecture 4, Feb 04 2014 Oracle on RAID As most Oracle DBAs know, rules of thumb can be misleading but here goes: If you can afford it, use RAID 1+0 for all your
More informationOracle 1Z0-515 Exam Questions & Answers
Oracle 1Z0-515 Exam Questions & Answers Number: 1Z0-515 Passing Score: 800 Time Limit: 120 min File Version: 38.7 http://www.gratisexam.com/ Oracle 1Z0-515 Exam Questions & Answers Exam Name: Data Warehousing
More informationEvolving To The Big Data Warehouse
Evolving To The Big Data Warehouse Kevin Lancaster 1 Copyright Director, 2012, Oracle and/or its Engineered affiliates. All rights Insert Systems, Information Protection Policy Oracle Classification from
More informationAn Oracle White Paper September Oracle Utilities Meter Data Management Demonstrates Extreme Performance on Oracle Exadata/Exalogic
An Oracle White Paper September 2011 Oracle Utilities Meter Data Management 2.0.1 Demonstrates Extreme Performance on Oracle Exadata/Exalogic Introduction New utilities technologies are bringing with them
More informationVLDB. Partitioning Compression
VLDB Partitioning Compression Oracle Partitioning in Oracle Database 11g Oracle Partitioning Ten Years of Development Core functionality Performance Manageability Oracle8 Range partitioning
More information1Z Oracle. Oracle Exadata Database Machine 2014 Certified Implementation Specialist
Oracle 1Z0-485 Oracle Exadata Database Machine 2014 Certified Implementation Specialist Download Full version : http://killexams.com/pass4sure/exam-detail/1z0-485 physicalserial: XXXXXX QUESTION: 65 Identify
More informationOracle: From Client Server to the Grid and beyond
Oracle: From Client Server to the Grid and beyond Graham Wood Architect, RDBMS Development Oracle Corporation Continuous Innovation Oracle 6 Oracle 5 Oracle 2 Oracle 7 Data Warehousing Optimizations Parallel
More informationOracle Database 10G. Lindsey M. Pickle, Jr. Senior Solution Specialist Database Technologies Oracle Corporation
Oracle 10G Lindsey M. Pickle, Jr. Senior Solution Specialist Technologies Oracle Corporation Oracle 10g Goals Highest Availability, Reliability, Security Highest Performance, Scalability Problem: Islands
More informationA Flexible Data Warehouse Architecture
A Flexible Data Warehouse Architecture Building the Ideal Data Warehouse Platform Mike Ault Oracle Guru Texas Memory Systems NYOUG Dec 2010 Michael R. Ault Oracle Guru - Nuclear Navy 6 years - Nuclear
More informationPrivate Cloud Database Consolidation Name, Title
Private Cloud Database Consolidation Name, Title Agenda Cloud Introduction Business Drivers Cloud Architectures Enabling Technologies Service Level Expectations Customer Case Studies Conclusions
More informationRecent Innovations in Data Storage Technologies Dr Roger MacNicol Software Architect
Recent Innovations in Data Storage Technologies Dr Roger MacNicol Software Architect Copyright 2017, Oracle and/or its affiliates. All rights reserved. Safe Harbor Statement The following is intended to
More informationAn Oracle White Paper March A Technical Overview of the Oracle Exadata Database Machine and Exadata Storage Server
An Oracle White Paper March 2012 A Technical Overview of the Oracle Exadata Database Machine and Exadata Storage Server Introduction... 2 Exadata Product Family... 4 Exadata Database Machine... 4 Exadata
More information1 Copyright 2012, Oracle and/or its affiliates. All rights reserved.
1 Engineered Systems - Exadata Juan Loaiza Senior Vice President Systems Technology October 4, 2012 2 Safe Harbor Statement "Safe Harbor Statement: Statements in this presentation relating to Oracle's
More informationInternational Journal of Computer Engineering and Applications,
EXADATA DATABASE MACHINE: CLOUD IMPLEMENTATION- IN A BOX: Lecturer, Dept of Information technology Ranchi Women s College, Ranchi-834001, Jharkhand. dollyviv@gmail.com ABSTRACT: After remaining happy with
More informationCopyright 2011, Oracle and/or its affiliates. All rights reserved.
The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material,
More informationOracle Autonomous Database
Oracle Autonomous Database Maria Colgan Master Product Manager Oracle Database Development August 2018 @SQLMaria #thinkautonomous Safe Harbor Statement The following is intended to outline our general
More informationEZY Intellect Pte. Ltd., #1 Changi North Street 1, Singapore
Oracle Database 12c: Performance Management and Tuning NEW Duration: 5 Days What you will learn In the Oracle Database 12c: Performance Management and Tuning course, learn about the performance analysis
More informationOracle 1Z0-070 Exam Questions and Answers (PDF) Oracle 1Z0-070 Exam Questions 1Z0-070 BrainDumps
Oracle 1Z0-070 Dumps with Valid 1Z0-070 Exam Questions PDF [2018] The Oracle 1Z0-070 Oracle Exadata X5 Administration Exam exam is an ultimate source for professionals to retain their credentials dynamic.
More informationAnthony AWR report INTERPRETATION PART I
Anthony AWR report INTERPRETATION PART I What is AWR? AWR stands for Automatically workload repository, Though there could be many types of database performance issues, but when whole database is slow,
More information[Contents. Sharing. sqlplus. Storage 6. System Support Processes 15 Operating System Files 16. Synonyms. SQL*Developer
ORACLG Oracle Press Oracle Database 12c Install, Configure & Maintain Like a Professional Ian Abramson Michael Abbey Michelle Malcher Michael Corey Mc Graw Hill Education New York Chicago San Francisco
More informationOracle #1 for Data Warehousing. Data Warehouses Growing Rapidly Tripling In Size Every Two Years
Extreme Performance HP Oracle Machine & Exadata Storage Server October 16, 2008 Robert Stackowiak Vice President, EPM & Data Warehousing Solutions, Oracle ESG Oracle #1 for Data Warehousing Microsoft 14.8%
More informationVirtual Memory. Reading. Sections 5.4, 5.5, 5.6, 5.8, 5.10 (2) Lecture notes from MKP and S. Yalamanchili
Virtual Memory Lecture notes from MKP and S. Yalamanchili Sections 5.4, 5.5, 5.6, 5.8, 5.10 Reading (2) 1 The Memory Hierarchy ALU registers Cache Memory Memory Memory Managed by the compiler Memory Managed
More informationAutomating Information Lifecycle Management with
Automating Information Lifecycle Management with Oracle Database 2c The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated
More informationExadata Database Machine: 12c Administration Workshop Ed 2
Oracle University Contact Us: 800-260-690 Exadata Database Machine: 12c Administration Workshop Ed 2 Duration: 5 Days What you will learn This Exadata Database Machine: 12c Administration Workshop training
More informationOracle #1 RDBMS Vendor
Oracle #1 RDBMS Vendor IBM 20.7% Microsoft 18.1% Other 12.6% Oracle 48.6% Source: Gartner DataQuest July 2008, based on Total Software Revenue Oracle 2 Continuous Innovation Oracle 11g Exadata Storage
More informationOracle Exadata X2/X3-8: A Critical Review
Oracle Exadata X2/X3-8: A Critical Review Mike Ault Oracle Guru Texas Memory Systems an IBM Company What Is Exadata X2/X3-8? Is it software? Is it hardware? Is it the Borg? Exadata as Borg? Not Really
More informationCopyright 2012, Oracle and/or its affiliates. All rights reserved.
1 Oracle Partitioning für Einsteiger Hermann Bär Partitioning Produkt Management 2 Disclaimer The goal is to establish a basic understanding of what can be done with Partitioning I want you to start thinking
More informationExadata Database Machine: 12c Administration Workshop Ed 2
Oracle University Contact Us: 00 9714 390 9050 Exadata Database Machine: 12c Administration Workshop Ed 2 Duration: 5 Days What you will learn This Exadata Database Machine: 12c Administration Workshop
More informationExadata Database Machine: 12c Administration Workshop Ed 2 Duration: 5 Days
Exadata Database Machine: 12c Administration Workshop Ed 2 Duration: 5 Days This Exadata Database Machine: 12c Administration Workshop introduces you to Oracle Exadata Database Machine. Explore the various
More informationUnder the Hood of Oracle Database Appliance. Alex Gorbachev
Under the Hood of Oracle Database Appliance Alex Gorbachev Mountain View, CA 9-Nov-2011 http://bit.ly/pythianasmwebinar 2 Alex Gorbachev CTO, The Pythian Group Blogger OakTable Network member Oracle ACE
More informationFrits Hoogland - Oracle Usergroup Norway 2013 EXADATA AND OLTP. Thursday, April 18, 13
Frits Hoogland - Oracle Usergroup Norway 2013 EXADATA AND OLTP Who am I? Frits Hoogland Working with Oracle products since 1996 Blog: http://fritshoogland.wordpress.com Twitter: @fritshoogland Email: fhoogland@vxcompany.com
More information10/29/2013. Program Agenda. The Database Trifecta: Simplified Management, Less Capacity, Better Performance
Program Agenda The Database Trifecta: Simplified Management, Less Capacity, Better Performance Data Growth and Complexity Hybrid Columnar Compression Case Study & Real-World Experiences
More informationORACLE EXADATA DATABASE MACHINE X2-8
ORACLE EXADATA DATABASE MACHINE X2-8 FEATURES AND FACTS FEATURES 128 CPU cores and 2 TB of memory for database processing 168 CPU cores for storage processing 2 database servers 14 Oracle Exadata Storage
More informationExadata Database Machine Administration Workshop
Exadata Database Machine Administration Workshop Duration : 32 Hours This course introduces you to the Oracle Exadata Database Machine. You'll learn about the various Exadata Database Machine features
More informationDatabase Services at CERN with Oracle 10g RAC and ASM on Commodity HW
Database Services at CERN with Oracle 10g RAC and ASM on Commodity HW UKOUG RAC SIG Meeting London, October 24 th, 2006 Luca Canali, CERN IT CH-1211 LCGenève 23 Outline Oracle at CERN Architecture of CERN
More informationIntroduction. Published in IOUG Select Magazine
Introduction Exadata Machine was first introduced by Oracle in 2008 and now it has become one of the most popular database platform to host Oracle databases. Exadata machine is like a mini data center
More informationFlashGrid Software Enables Converged and Hyper-Converged Appliances for Oracle* RAC
white paper FlashGrid Software Intel SSD DC P3700/P3600/P3500 Topic: Hyper-converged Database/Storage FlashGrid Software Enables Converged and Hyper-Converged Appliances for Oracle* RAC Abstract FlashGrid
More informationAn Oracle White Paper April A Technical Overview of the Sun Oracle Database Machine and Exadata Storage Server
An Oracle White Paper April 2010 A Technical Overview of the Sun Oracle Database Machine and Exadata Storage Server Sun Oracle Database Machine and Exadata Storage Server... 2 Exadata Product Family...
More informationMACHINE X2-8. Exadata Storage Server and the Oracle Databases storage hierarchy. With 14 ORACLE DATA SHEET ORACLE EXADATA DATABASE FEATURES AND FACTS
ORACLE EXADATA DATABASE MACHINE X2-8 FEATURES AND FACTS FEATURES 160 CPU cores and 4 TB of memory for database processing 168 CPU cores dedicated to SQL processing in storage 2 database servers 14 Oracle
More informationExadata Database Machine Administration Workshop NEW
Exadata Database Machine Administration Workshop NEW What you will learn: This course introduces students to Oracle Exadata Database Machine. Students learn about the various Exadata Database Machine features
More informationShould You Drop Indexes on Exadata?
Should You Drop Indexes on Session 316 Arup Nanda Longtime Oracle DBA (and now DMA) REMINDER Check in on the COLLABORATE mobile app Disclaimer If you downloaded this slide deck, please note: These slides
More informationOracle Platform Performance Baseline Oracle 12c on Hitachi VSP G1000. Benchmark Report December 2014
Oracle Platform Performance Baseline Oracle 12c on Hitachi VSP G1000 Benchmark Report December 2014 Contents 1 System Configuration 2 Introduction into Oracle Platform Performance Tests 3 Storage Benchmark
More informationL9: Storage Manager Physical Data Organization
L9: Storage Manager Physical Data Organization Disks and files Record and file organization Indexing Tree-based index: B+-tree Hash-based index c.f. Fig 1.3 in [RG] and Fig 2.3 in [EN] Functional Components
More informationSolaris Engineered Systems
Solaris Engineered Systems SPARC SuperCluster Introduction Andy Harrison andy.harrison@oracle.com Engineered Systems, Revenue Product Engineering The following is intended to outline
More informationOracle Database 12c: Performance Management and Tuning
Oracle University Contact Us: +43 (0)1 33 777 401 Oracle Database 12c: Performance Management and Tuning Duration: 5 Days What you will learn In the Oracle Database 12c: Performance Management and Tuning
More informationSQL Gone Wild: Taming Bad SQL the Easy Way (or the Hard Way) Sergey Koltakov Product Manager, Database Manageability
SQL Gone Wild: Taming Bad SQL the Easy Way (or the Hard Way) Sergey Koltakov Product Manager, Database Manageability Oracle Enterprise Manager Top-Down, Integrated Application Management Complete, Open,
More informationReal-World Performance Training Exadata and Database In-Memory
Real-World Performance Training Exadata and Database In-Memory Real-World Performance Team Agenda 1 2 3 4 5 The DW/BI Death Spiral Parallel Execution Loading Data Exadata and Database In-Memory Dimensional
More information1 Copyright 2012, Oracle and/or its affiliates. All rights reserved.
1 Copyright 2012, Oracle and/or its affiliates. All rights The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated
More informationExadata Monitoring and Management Best Practices
Exadata Monitoring and Management Best Practices Mughees A. Minhas Oracle Redwood Shores, CA, USA Keywords: Oracle, Exadata, monitoring, management, database, performance, monitor, Enterprise Manager,
More information1 Copyright 2011, Oracle and/or its affiliates. All rights reserved. reserved. Insert Information Protection Policy Classification from Slide 8
The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material,
More information