Expert Oracle Exadata - Parent Directory

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• CONTENTSHow to Verify That Smart Scan is Happening..................................................................5010046 Trace............................................................................................................................................ 51Performance Statistics (v$sessstat)....................................................................................................... 52Offload Eligible Bytes.............................................................................................................................. 54SQL Monitoring....................................................................................................................................... 58Parameters ......................................................................................................................61Summary .........................................................................................................................64• Chapter 3: Hybrid Columnar Compression............................................................65Oracle Storage Review ....................................................................................................65Oracle Compression Mechanisms ...................................................................................68BASIC...................................................................................................................................................... 68OLTP ....................................................................................................................................................... 68HCC......................................................................................................................................................... 69HCC Mechanics................................................................................................................72HCC Performance.............................................................................................................73Load Performance .................................................................................................................................. 73Query Performance................................................................................................................................. 78DML Performance................................................................................................................................... 83Expected Compression Ratios .........................................................................................91Compression Advisor.............................................................................................................................. 91Real World Examples.............................................................................................................................. 94Restrictions/Challenges.................................................................................................100Moving Data to a non-Exadata Platform............................................................................................... 100Disabling Serial Direct Path Reads....................................................................................................... 100Locking Issues...................................................................................................................................... 101Single Row Access ............................................................................................................................... 102Common Usage Scenarios.............................................................................................102vii
• CONTENTSSummary .......................................................................................................................104• Chapter 4: Storage Indexes.................................................................................105Structure........................................................................................................................105Monitoring Storage Indexes...........................................................................................107Database Statistics............................................................................................................................... 107Tracing.................................................................................................................................................. 108Monitoring Wrap Up.............................................................................................................................. 111Controlling Storage Indexes...........................................................................................111_kcfis_storageidx_disabled ................................................................................................................. 111_kcfis_storageidx_diag_mode............................................................................................................. 112_cell_storidx_mode.............................................................................................................................. 112Storage Software Parameters .............................................................................................................. 112Behavior.........................................................................................................................113Performance ..................................................................................................................114Special Optimization for Nulls .............................................................................................................. 116Physical Distribution of Values ............................................................................................................. 117Potential Issues .............................................................................................................118Incorrect Results .................................................................................................................................. 119Moving Target....................................................................................................................................... 119Partition Size ........................................................................................................................................ 122Incompatible Coding Techniques ......................................................................................................... 122Summary .......................................................................................................................124• Chapter 5: Exadata Smart Flash Cache...............................................................125Hardware .......................................................................................................................125Cache vs. Flash Disk......................................................................................................127Using Flash Memory as Cache ............................................................................................................. 128How ESFC is Created ............................................................................................................................ 132viii
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For your convenience Apress has pla
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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? Note: H
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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?Notice t
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CHAPTER 1 WHAT IS EXADATA?Software
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CHAPTER 1 WHAT IS EXADATA?Single I
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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 SCAN|
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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 SCANe
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CHAPTER 2 OFFLOADING / SMART SCANa
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CHAPTER 2 OFFLOADING / SMART SCANs
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CHAPTER 2 OFFLOADING / SMART SCAN-
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CHAPTER 2 OFFLOADING / SMART SCANF
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CHAPTER 2 OFFLOADING / SMART SCAN_
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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 PCBS642 05cq2hb1r
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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 6 MAKING PCBSphysical read
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CHAPTER 6 MAKING PCBStransaction t
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CHAPTER 6 MAKING PCBSSYS@EXDB1> se
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CHAPTER 7 RESOURCE MANAGEMENTimpor
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CHAPTER 7 RESOURCE MANAGEMENTSQL>
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CHAPTER 7 RESOURCE MANAGEMENTSessi
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CHAPTER 7 RESOURCE MANAGEMENTrelat
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CHAPTER 7 RESOURCE MANAGEMENTResou
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CHAPTER 7 RESOURCE MANAGEMENTdbms_
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CHAPTER 7 RESOURCE MANAGEMENTcomme
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CHAPTER 7 RESOURCE MANAGEMENTBEGIN
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CHAPTER 7 RESOURCE MANAGEMENTStep
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CHAPTER 7 RESOURCE MANAGEMENTAccor
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CHAPTER 7 RESOURCE MANAGEMENTNow,
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CHAPTER 7 RESOURCE MANAGEMENTFigur
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CHAPTER 7 RESOURCE MANAGEMENTOver-
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CHAPTER 7 RESOURCE MANAGEMENT50% m
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CHAPTER 7 RESOURCE MANAGEMENT Note
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CHAPTER 7 RESOURCE MANAGEMENTI/O R
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CHAPTER 7 RESOURCE MANAGEMENTdbPla
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CHAPTER 7 RESOURCE MANAGEMENTInter
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CHAPTER 7 RESOURCE MANAGEMENTAn IO
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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 8 CONFIGURING EXADATAFile
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CHAPTER 8 CONFIGURING EXADATAFile
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CHAPTER 8 CONFIGURING EXADATA• /
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CHAPTER 8 CONFIGURING EXADATA10. U
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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 EXADATACELLBO
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CHAPTER 9 RECOVERING EXADATAPartit
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CHAPTER 9 RECOVERING EXADATANetmas
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CHAPTER 9 RECOVERING EXADATASystem
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CHAPTER 9 RECOVERING EXADATA-rw-r-
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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 9 RECOVERING EXADATAyou sh
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CHAPTER 9 RECOVERING EXADATAPoor P
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CHAPTER 10 EXADATA WAIT EVENTSSYS@
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CHAPTER 10 EXADATA WAIT EVENTScell
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CHAPTER 10 EXADATA WAIT EVENTScolu
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CHAPTER 10 EXADATA WAIT EVENTSYou
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CHAPTER 10 EXADATA WAIT EVENTSWAIT
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CHAPTER 10 EXADATA WAIT EVENTSreli
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CHAPTER 10 EXADATA WAIT EVENTSPARS
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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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CHAPTER 13 MIGRATING TO EXADATA2.
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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 14 STORAGE LAYOUT1 st Grid
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CHAPTER 14 STORAGE LAYOUTTable 14-
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CHAPTER 14 STORAGE LAYOUTparameter
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CHAPTER 14 STORAGE LAYOUTRemoving
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CHAPTER 15 COMPUTE NODE LAYOUTCPU
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CHAPTER 15 COMPUTE NODE LAYOUTmore
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CHAPTER 15 COMPUTE NODE LAYOUTReca
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CHAPTER 15 COMPUTE NODE LAYOUTWith
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CHAPTER 15 COMPUTE NODE LAYOUTspin
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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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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 570 and 571: • CONTENTSControlling ESFC Usage
Page 572 and 573: • CONTENTSSummary ...............
Page 574 and 575: • CONTENTS• Chapter 12: Monitor
Page 576 and 577: • CONTENTS• Chapter 16: Unlearn
Page 578 and 579: About the Technical Reviewer Kevin
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