Exadata SMART Monitoring - OEM 13c

Session ID:
Prepared by:
Remember to complete your evaluation for this session within the app!
170
SMART Performance
Monitoring. Exadata & OEM
13c
4/9/2019
Alfredo Krieg
Senior Cloud Performance Architect
Viscosity North America
@alfredokrieg

@ViscosityNAviscosityna.com
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Alfredo Krieg
• Oracle ACE
• Senior Cloud Performance Architect at Viscosity North America
• Database Performance Tuning, Exadata, OEM and EBS
• Oracle Technologies since 2004
• Blog www.alfredokriegdba.com
• alfredo.krieg@viscosityna.com
@alfredokrieg

Disclaimer
• The opinions expressed in this presentation are solely mine, and not that of my
employer.

Agenda
• Oracle Enterprise Manager
– Architecture
– Plug-ins
– Discover and Setup
– Performance Metrics
– Systems Infrastructure Plug-in
• Exadata
– SMART IO
– Flash Cache Resource Monitoring
– Cellcli
• Oracle Database
– AWR Exadata Related Metrics
– SQL Monitoring

OEM 13c Architecture
• Oracle Management Repository
• Oracle Management Service
• Oracle Management Agent
• Plug-ins
• Java Virtual Machine Diagnostics
• Cloud Control Console

OEM 13c Plug-ins
• Default Plug-ins installed with OEM 13.3
– Oracle Database
– Oracle Fusion Middleware
– Oracle Exadata
– Oracle Cloud Framework
– Oracle System Infrastructure
• The plug-in must be deployed on the OMS first then the OMA
• OMS plug-in can be a higher version
– Compatibility issues
– Errors
– Metric Collection Errors

Exadata Plug-in
• OEM 13.3 – Exadata Plug-in 13.2.2.0.0
– Exadata Virtualization Provisioning
• Create/delete RAC cluster (VMs, DB, GI, ASM)
• Scale up/down a RAC cluster
– Monitor Exadata Flash Cache Features
– Enhanced Exadata Hardware Management
– Patching Automation Support
• Compute Nodes (Firmware and OS)
• Exadata Storage Cell Servers (Firmware and OS)
• Infiniband Network (Firmware)
• Quarterly Full Stack Patches
– Database
– Infrastructure (Storage Cell Server, Infiniband, PDU)
– ORAchk/EXAchk Integration
– Auto Service Request (ASR) Integration: Faulty Telemetry

Exadata Plug-in
• Deployment Pre-reqs
https://docs.oracle.com/cd/cloud-control-13.3/EMXIG/GUID-4BC18291-B6E4-4C96-916F-
332AEFBEF976.htm#EMXIG215

Exdata Discovery
• Deploy OMA on compute nodes
• Run Discovery Precheck Script
– From the OEM agent directory
– Doc ID 1473912.1
– Credentials needed cellmonitor SSH, oemuser ILOM , nm2user Infiniband
• From OEM Console -> Setup -> Add Target -> Add Targets Manually

Exadata Discovery
• Add Using Guided Process -> Oracle Exadata Database Machine

Exadata Discovery
• 13c or 12c?

Exadata Discovery
• 13c target type
– Enhanced Monitoring
– Allows Plug-in to monitor Exadata Storage Server and KVM
– Enterprise Manager Systems Infrastructure Plug-in the rest of hardware targets in the rack
• 12c target type
– Exadata Plug-in only monitors all the components
• If you already have an Exadata discovered with 12c target type?
– You can upgrade the target types from the Exadata Home Page

Exadata Discovery
• Select the OMA deployed in the first compute node
• Rest of discovery steps
https://docs.oracle.com/cd/cloud-control-13.3/EMXIG/GUID-FF975B0B-0CFE-4D7E-820E-
368960BA2482.htm#EMXIG139

Exadata Topology
• DB Machine Schematic and Photo-Realistic

Exadata Resource Utilization
• Navigate to Database Machine -> Resource Utilization -> Compute Resources

Performance Metrics Storage Cell Server
• Storage Cell Server

Performance Metrics Storage Cell Server
• Storage Cell Server Metrics
– 100+ Metrics available in 15 categories
• Celldisk Statistics
• Cell Offload Efficiency
• Cell Statistics
• Cell Summary
• Consumer Group
• Critical Event
• Database Resource Manager
• Database Statistics
• Filesystem Utilization
• Flashcache Statistics
• Griddisk Statistics
• Interconnect
• LUN Statistics
• Physicaldisk Statistics
• Response Category
– Option to create Metric Extensions
https://docs.oracle.com/cd/E11857_01/em.111/e13105/sage_metrics.htm

Enterprise Manager Systems Infrastructure
• Enterprise Manager System Infrastructure Plug-in (13c only)
– Compute Node Schematic – Photo-Realistic Topology
https://docs.oracle.com/cd/cloud-control-13.3/EMSIM/GUID-FA3CEF5C-125B-411D-80D1-
C771BB76728D.htm#EMSIM131

Enterprise Manager Systems Infrastructure
• Targets monitored
– Servers
– Storage servers
– Networks
– Racks and power distribution units (PDUs)
– Oracle Solaris and Linux operating systems
– Oracle Solaris Zones
– Oracle VM Server for SPARC and logical domains
– Oracle SuperCluster engineered systems
https://docs.oracle.com/cd/E63000_01/EMADM/discovery_emsi.htm#EMADM155
81

SMART IO – Cell Server
• Ability to OFFLOAD processing to the storage servers

SMART IO – Cell Server
• SQL operations that benefit from SMART IO
– Smart Scans Predicate Filtering
• Only the rows requested are returned
– Smart Scan Column Filtering
• Only the columns requested are returned
– Smart Scan Join Processing
• Joins are processed in the storage layer. Implemented using Bloom Filters
– Smart Scan Processing of Encrypted Tablespaces and Columns
– Storage Indexing
• Exadata examines Storage Index before any I/O is done
– Offload of Data Mining Model Scoring
• All data mining functions are offloaded
– Other
• Database backups and Tablespace creation

SMART IO – Flash Cache
• Flash for Database Objects
– Automated caching mechanism for frequently-accessed data
– DB and Storage Servers communicate and have the visibility of objects need to be cached
– Understand the nature of all I/O operations
– Objects larger than the size of the flash cache – only a portion is cached
– Exadata Smart Flash Cache Compression
• Flash for Database Logging
– Redo logs are multiplexed between disk and flash cache
– Exadata will do parallel write to both and when either of these competes database will be
notified
– Not a permanent store for redo data – just temp to provide fast redo write response time

Flash Cache Resource Monitoring
• I/O Utilization (as percentage)
• Hard Drive I/O Time Breakdown (in milliseconds per request)
• Flash I/O Time Breakdown (in milliseconds per request)

Cellcli
[rootslcc13cel12 ~]# cellcli -e list griddisk
attributes name,asmmodestatus,asmdeactivationoutcome
DBFS_DG_CD_02_slcc13cel12 ONLINE Yes

Session ID:
Remember to complete your evaluation for this session within the app!
170
alfredo.krieg@viscosityna.com

Exadata SMART Monitoring - OEM 13c

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Exadata SMART Monitoring - OEM 13c