Expert Oracle Exadata - Parent Directory

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• CONTENTS• Chapter 16: Unlearning Some Things We Thought We Knew.............................511A Tale of Two Systems ..................................................................................................511OLTP-Oriented Workloads..............................................................................................512Exadata Smart Flash Cache (ESFC) ...................................................................................................... 512Scalability............................................................................................................................................. 513Write-Intensive OLTP Workloads .......................................................................................................... 513DW-Oriented Workloads ................................................................................................514Enabling Smart Scans .......................................................................................................................... 514Things that Can Cripple Smart Scans................................................................................................... 516Other Things to Keep in Mind ............................................................................................................... 526Mixed Workloads ...........................................................................................................528To Index or Not to Index?...................................................................................................................... 529The Optimizer Doesn’t Know ................................................................................................................ 530Using Resource Manager ..................................................................................................................... 533Summary .......................................................................................................................534• Appendix A: CellCLI and dcli ...............................................................................535CellCLI Command Syntax...............................................................................................535Getting Familiar with CellCLI ................................................................................................................ 536Sending Commands from the Operating System ................................................................................. 540Configuring and Managing the Storage Cell......................................................................................... 540dcli Command Syntax....................................................................................................542Summary .......................................................................................................................544• Appendix B: Online Exadata Resources ..............................................................545Exadata MOS Support Notes..........................................................................................545Helpful Exadata MOS Support Notes .............................................................................545Exadata Bulletins and Blogs ..........................................................................................546• Appendix C: Diagnostic Scripts...........................................................................547• Index ...................................................................................................................551xv
About the Author Kerry Osborne began working with Oracle (version 2) in 1982. He hasworked as both a developer and a DBA. For the past several years he hasbeen focused on understanding Oracle internals and solving performanceproblems. He is an OakTable member and an Oracle Ace Director. Kerry is afrequent speaker at Oracle conferences. He is also a co-founder of Enkitec,an Oracle-focused consulting company headquartered in Dallas, Texas. Heblogs at kerryosborne.oracle-guy.com. Randy Johnson is a Principal Consultant at Enkitec, a consulting firmspecializing in Oracle. Randy has over 18 years of experience with Oraclebeginning with Oracle 7 in the early 90s. Much of his career has combinedOracle DBA work with Unix administration duties. Over the last five years hehas focused almost exclusively on RAC and ASM. He is also an authority onOracle backup and recovery via RMAN, having written a popular utility forautomating RMAN scripts called Dixie. Randy occasionally blogs atblog.enkitec.com. Tanel Põder is one of the leading Oracle performance specialists in theworld, having helped solving complex problems for customers in over 20countries on five continents. He specializes in advanced performance tuning,end-to-end troubleshooting, and other complex (and therefore interesting)tasks such as migrating VLDBs with very low downtime. Tanel has optimizedthe performance of Exadata installations starting from Exadata V1, and heplans to go even deeper with his current Exadata performance andtroubleshooting research.He is one of the first Oracle Certified Masters in the world, an Oracle ACEDirector and a proud member of the OakTable Network.Tanel regularly speaks at conferences worldwide and publishes his articles, scripts and tools in his blogat http://blog.tanelpoder.com.xvi
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IntroductionThank you for purchasin
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INTRODUCTIONwere implementing Exada
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CHAPTER 1 WHAT IS EXADATA?end of t
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CHAPTER 1 WHAT IS EXADATA? Kevin S
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CHAPTER 1 WHAT IS EXADATA?Limited
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CHAPTER 1 WHAT IS EXADATA?StorageS
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CHAPTER 1 WHAT IS EXADATA?Adapters
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CHAPTER 1 WHAT IS EXADATA? Kevin S
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CHAPTER 1 WHAT IS EXADATA?Software
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C H A P T E R 2Offloading / Smart S
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CHAPTER 2 OFFLOADING / SMART SCANR
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CHAPTER 2 OFFLOADING / SMART SCAN3
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CHAPTER 2 OFFLOADING / SMART SCANm
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CHAPTER 2 OFFLOADING / SMART SCANo
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CHAPTER 2 OFFLOADING / SMART SCANS
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CHAPTER 2 OFFLOADING / SMART SCANX
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CHAPTER 2 OFFLOADING / SMART SCANC
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CHAPTER 2 OFFLOADING / SMART SCANs
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CHAPTER 2 OFFLOADING / SMART SCANF
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C H A P T E R 3Hybrid Columnar Comp
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CHAPTER 3 HYBRID COLUMNAR COMPRESS
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C H A P T E R 4Storage IndexesStora
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CHAPTER 4 STORAGE INDEXESMonitorin
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CHAPTER 4 STORAGE INDEXESVersion:
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CHAPTER 4 STORAGE INDEXES• For e
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CHAPTER 4 STORAGE INDEXES• _cell
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CHAPTER 4 STORAGE INDEXESSYS@EXDB1
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CHAPTER 4 STORAGE INDEXESpositives
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CHAPTER 4 STORAGE INDEXESIncorrect
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CHAPTER 4 STORAGE INDEXES---------
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CHAPTER 4 STORAGE INDEXES1 row sel
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C H A P T E R 5Exadata Smart Flash
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CHAPTER 5 EXADATA SMART FLASH CACH
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C H A P T E R 6Exadata Parallel Ope
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CHAPTER 6 MAKING PCBSParameter Def
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CHAPTER 6 MAKING PCBSTable 6-2. Hi
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CHAPTER 6 MAKING PCBSSo as you can
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CHAPTER 6 MAKING PCBS-- switch to
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CHAPTER 6 MAKING PCBSThe Old WayBe
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CHAPTER 6 MAKING PCBS((4 × CPU_co
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CHAPTER 6 MAKING PCBSSYS@EXDB1> /S
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CHAPTER 6 MAKING PCBSSYS@EXDB1> @q
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CHAPTER 6 MAKING PCBSControlDescri
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CHAPTER 6 MAKING PCBSthe normal ca
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CHAPTER 6 MAKING PCBSEnter value f
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CHAPTER 7 RESOURCE MANAGEMENTimpor
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CHAPTER 7 RESOURCE MANAGEMENTSQL>
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CHAPTER 7 RESOURCE MANAGEMENTdbms_
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CHAPTER 7 RESOURCE MANAGEMENTcomme
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CHAPTER 7 RESOURCE MANAGEMENTStep
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CHAPTER 7 RESOURCE MANAGEMENTOver-
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CHAPTER 7 RESOURCE MANAGEMENTdbPla
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CHAPTER 7 RESOURCE MANAGEMENTgroup
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CHAPTER 7 RESOURCE MANAGEMENTLIST
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C H A P T E R 8Configuring ExadataO
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CHAPTER 8 CONFIGURING EXADATAThe P
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CHAPTER 8 CONFIGURING EXADATAregis
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CHAPTER 8 CONFIGURING EXADATATable
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CHAPTER 8 CONFIGURING EXADATA Note
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CHAPTER 9 RECOVERING EXADATAprovid
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CHAPTER 9 RECOVERING EXADATAconfig
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CHAPTER 9 RECOVERING EXADATACellCL
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CHAPTER 9 RECOVERING EXADATANetmas
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CHAPTER 9 RECOVERING EXADATASYS:+A
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CHAPTER 9 RECOVERING EXADATA■ No
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CHAPTER 9 RECOVERING EXADATACellCL
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CHAPTER 10 EXADATA WAIT EVENTSSYS@
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CHAPTER 10 EXADATA WAIT EVENTScell
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C H A P T E R 11Understanding Exada
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CHAPTER 11 UNDERSTANDING EXADATA P
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CHAPTER 12 MONITORING EXADATA PERF
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CHAPTER 13 MIGRATING TO EXADATA Ke
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C H A P T E R 14Storage LayoutIn Or
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CHAPTER 14 STORAGE LAYOUTFailure G
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CHAPTER 14 STORAGE LAYOUTGrid Disk
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CHAPTER 14 STORAGE LAYOUTASM Disk
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CHAPTER 15 COMPUTE NODE LAYOUTCPU
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C H A P T E R 16Unlearning Some Thi
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CHAPTER 16 UNLEARNING SOME THINGS
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Page 536 and 537: A P P E N D I X ACellCLI and dcliCe
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Page 546 and 547: A P P E N D I X BOnline Exadata Res
Page 548 and 549: A P P E N D I X CDiagnostic Scripts
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Page 552 and 553: Index• AAccess control list (ACL)
Page 554 and 555: • INDEXnetwork componentsclient a
Page 556 and 557: • INDEX• Epredicate offload, 36
Page 558 and 559: • INDEXOTHER_GROUPS consumer grou
Page 560 and 561: • INDEXCPU utilization, 152mixed
Page 562 and 563: • INDEXstructure, 105sub-query, 1
Page 564 and 565: Expert Oracle Exadatan n nKerry Osb
Page 566 and 567: Contents• About the Authors......
Page 568 and 569: • CONTENTSHow to Verify That Smar
Page 570 and 571: • CONTENTSControlling ESFC Usage
Page 572 and 573: • CONTENTSSummary ...............
Page 574 and 575: • CONTENTS• Chapter 12: Monitor
Page 578 and 579: About the Technical Reviewer Kevin
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