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Exadata_Health_and_Resource_Usage_Monitoring_v10.pdf

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  • 开发语言:SQL
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  • 发布时间:2020-10-15
  • 实例类别:SQL基础
  • 发 布 人:yujtslyy
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 相关标签: Oracle

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Table of Contents
Introduction ..................................................................................................................................................................... 4
Methodology ................................................................................................................................................................... 4
Steps to follow before problems occur ............................................................................................................................ 5
Exachk ........................................................................................................................................................................ 5
AWR Baselines .......................................................................................................................................................... 7
Static Baselines .......................................................................................................................................................... 7
Moving Baselines ....................................................................................................................................................... 9
Configuration File Copies ......................................................................................................................................... 10
Tunable Parameters Snapshots ............................................................................................................................... 10
How to configure DB parameters ............................................................................................................................. 11
I/O Resource Manager ............................................................................................................................................. 12
Enterprise Manager Exadata Resource Management ............................................................................................. 13
Setting limits ............................................................................................................................................................. 15
Database Metrics ..................................................................................................................................................... 15
Configure HugePages .............................................................................................................................................. 16
Configure consolidated environments ...................................................................................................................... 16
Initial quick checks to perform ...................................................................................................................................... 17
Component Up ......................................................................................................................................................... 17
Incident Manager ...................................................................................................................................................... 19
Alert Log ................................................................................................................................................................... 21
OS System Log ........................................................................................................................................................ 23
CPU Utilization ......................................................................................................................................................... 23
Examine TOP kswapd .............................................................................................................................................. 25
Memory Utilization .................................................................................................................................................... 26
Examine VMSTAT .................................................................................................................................................... 28
ILOM Events ............................................................................................................................................................. 28
Network Status ......................................................................................................................................................... 31
Disk Status ............................................................................................................................................................... 31
CheckHWnFWProfile ............................................................................................................................................... 32
Services .................................................................................................................................................................... 33
Database Free Buffer Waits ..................................................................................................................................... 34
Exachk ...................................................................................................................................................................... 34
Have Changes Occurred in the Environment? ............................................................................................................. 35
Use baseline data to troubleshoot issues ..................................................................................................................... 35
Compare Configuration Files .................................................................................................................................... 35
Checking changes to the kernel tunable parameters ............................................................................................... 36
3 | EXADATA HEALTH AND RESOURCE USAGE MONITORING
AWR Data ................................................................................................................................................................ 36
Advanced Diagnostics .................................................................................................................................................. 38
Hardware Rule out ................................................................................................................................................... 39
Check if Compute node is CPU bound ..................................................................................................................... 40
I/O Performance ....................................................................................................................................................... 41
How to analyze Cell DB HDD I/O metrics ................................................................................................................ 49
Next Steps ................................................................................................................................................................ 54
If Cells nodes are I/O bound ..................................................................................................................................... 54
If Compute node is CPU or memory bound ............................................................................................................. 55
If Cell server is not I/O bound and Compute nodes are not CPU/memory bound .................................................... 55
Cell server Target Page ........................................................................................................................................... 55
Exadata Cell Performance View ............................................................................................................................... 56
File System Information ............................................................................................................................................ 57
Common Performance use cases ............................................................................................................................ 58
Tune TOP SQLs for DW ........................................................................................................................................... 62
Database Diagnostic Tools ........................................................................................................................................... 63
ADDM ....................................................................................................................................................................... 63
Database Top Activity Page ..................................................................................................................................... 64
AWR Reports ........................................................................................................................................................... 65
New features in Exadata Plug-in 12.1.0.6 .................................................................................................................... 69
Summary ...................................................................................................................................................................... 73
References ................................................................................................................................................................... 74
Appendices ................................................................................................................................................................... 75

标签: Oracle

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