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Storage Monitoring Made Easy for DBAs: Diagnosing Performance Problems
Anirban Chatterjee Sriram PalapudiSenior Product Manager Consulting Member of Technical Staff
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, code, or functionality, and should not be relied upon in making purchasing decisions.The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.
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Program Agenda
• Why DBAs Need to Monitor Storage? • Storage Systems Monitored by EM• Storage Best-Practices for DBAs• Diagnosing Performance Problems• Storage Plug-in Architecture• Q/A
Why DBAs Need to Monitor Storage?
Database Host S torage
• Insure
• Storage meets throughput needs
• Storage has adequate I/O capacity
• Storage capacity can scale up
• Diagnose performance problems
Visualize Database to Storage Relation
Visualize Database to Storage Relation Top Down Application Management
Visualize Database to Storage Relation
• Enterprise Manager helps you meet the challenges of managing application infrastructure
• Comprehensive visibility into your infrastructure
Diagnose Performance Problems
• Enterprise Manager helps you meet the challenges of managing application infrastructure
• Comprehensive visibility into your infrastructure
• Rapid, accurate diagnosis & resolution of complex problems
Integrate With Helpdesk Systems
• Enterprise Manager helps you meet the challenges of managing application infrastructure
• Comprehensive visibility into your infrastructure
• Rapid, accurate diagnosis & resolution of complex problems
• Seamless integration into your operations tools & processes
Help Desk
System
Connector
Oracle Enterprise ManagerIncreases Business Efficiency
• Manage applications top-down, from the business perspective by understanding user experiences and business impact of IT issues
• Manage entire application lifecycle to increase business agility with comprehensive application quality management and compliance solutions
• Reduce operational costs through intelligent diagnostics and automated IT processes
• Leader in the complete enterprise application stack
• Built-in manageability into every tier
• Integrated manageability across the entire stack
Oracle’s Complete Enterprise Application StackBuilt-in & Integrated Manageability
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Program Agenda
• Why DBAs need to monitor storage? • Storage systems monitored by EM• Storage best practices for DBAs• Diagnose data I/O and throughput problem• Storage Plug-in Architecture• Q/A
Comprehensive Storage Monitoring BreadthStorage Systems:
• EMC Celerra• EMC Clariion• EMC Symmetrix DMX• NetApp Filer• Pillar Axiom*• Onaro SANScreen*• Veritas Cluster Server *• Symantec Storage Foundation* • HP Storage EVA* (coming soon)• IBM DS4000 Storage* (coming soon)• NEC Storage* (coming soon)
* Partner developed
Database to Storage Mapping
Database Host Storage
DISKS
Database to Storage Mapping Reports Mapping Database to several StorageSystems
Symantec Storage Foundation
NEC Storage
EMC Symmetrix DMX Storage
Storage Configuration MonitoringVeritas Cluster Server NEC Storage
• Comprehensive depth of configuration information
IBM DS4000
EMC Clariion
Storage Performance Reports
IBM DS4000
NEC Storage
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Program Agenda
• Why DBAs need to monitor storage? • Storage Systems Monitored by EM• Storage Best Practices for DBAs• Diagnose Performance problems• Storage Plug-in Architecture• Q/A
Key players
DisksLUNVolumes/
Filesystems/Diskgroups
DatafilesTablespace
DATABASE STORAGE
Databases layout on storage
DisksLUNVolumes/
Filesystems/Diskgroups
DatafilesTablespace
Database Storage Layout Best PracticeSpread database components such as table spaces, data files and ASM
disk groups across all available disks
Storage Device and Host Volume Mapping
Database Storage Layout Best Practice What is in your Storage System?
LUNs
Disks
Disk Adapters
Cache
Host Adapters
Processors
Database Storage Layout Best PracticeSpread Tablespace across Host Adapters and Ports
Host Adapter
Database Storage Layout Best Practice….contd
Check for RAID Protection
Check for Host Volume Sharing
Database Layout Best Practices
Considerations
• Databases sharing storage disks, front-end ports
• LUNS spread across disks• I/O throughput spread across
Host Adapters and Ports • Disks spread over Disk Adapters• Proper RAID protection• Host volume sharing
LUNs
Disks
Disk Adapters
Cache
Host Adapters
:Port #
Processors
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Program Agenda
• Why DBAs Need to Monitor Storage? • Storage Systems Monitored by EM• Storage best practices for DBAs• Diagnose Performance Problems• Storage Plug-in Architecture• Q/A
Database Performance – ADDM Report
Automatic Diagnostic Engine
Snapshots inAutomatic Workload
Repository
Self-Diagnostic Engine
ADDM Log File
Storage Performance
0049:13B:1
LUNs (Hyper)
FrontEnd Adapter Port
Disks
LUN(Hyper) Performance
Disk Adapters
0049:13B:1
LUN
ADDM Log File
Front End Adapter Performance
Host Adapter:Port #
0049:13B:1ADDM Log File
Storage System
Diagnosing Storage System Errors
Disks : Data Sector Invalidations, RAID Errors, Spares Availability
Disk Adapters : Status and Availability
Host Adapters : Status (Active, Failed) Ports Online, Dead,Offline)
ADDM Log File
PersonalizationSelect the metric alerts for the components that are of interest
• Targeted Monitoring
• Default Thresholds
• Modifiable Thresholds• Different Notification
Methods
• SNMP
Diagnosing Performance ProblemsView charts of related targets on one screen
DB Host Storage
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Diagnosing Configuration Changes
Configuration ManagementKnow what you have and know what you’re running
• Storage Microcode Version• Model• Model Type• Agent Version• Cache Read State• Firmware Version• Cache Information• Disk Status• Disk Capacity• Total Capacity• Number of Storage Processors• Number of Disks• Number of Spare Disks• Parity Raid Configuration• Raid5 Configuration
Configuration Management Database (CMDB)
Software Installations
SW and HW Configurations
Resource Relationships
Certified Configurations
Best Practices
• CMDB reports• CMDB Statistics• Policy standards• Audit Reports• Decision support
for incident, problem, change, and release management
Did something changed in my storage configuration today?
Storage Configuration Analysis
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Program Agenda
• Why DBAs need to monitor storage? • Storage Systems Monitored by EM• Storage Best Practices for DBAs• Diagnose data I/O and throughput problem• Storage Plug-in Architecture• Q/A
Device
Custom
Storage Plug-in ArchitectureSystematic way to extend Enterprise Manager
storage
ORACLE DB ORACLE MIDDLEWARE ORACLE APPS
Storage Plug-in Architecture
• READ-only view of Storage• Single agent for multiple arrays
• Configurable collection frequency• Native Storage CLI Calls
HostHost EM AGENT: for DB/ASM/Host monitoring
ASM/DB ASM/DB
Storage System
EM Client OMS REPOSITORY
Storage Plug-in Security
Storage Security• Lightweight “Read-only” Monitoring• Separate OS user for metric collection scripts
EM Security• Users and Roles limiting access to Storage targets• View Privileges Only
Storage Plug-in Benefits
• Enables DBA & Storage Administrator work together efficiently• Eliminates finger pointing
• Better root-cause-analysis• Through end-to-end tracing of dependent storage
components• Quicker diagnosis
• Through correlated performance metrics across database, host and storage
• Higher quality of service• Through single unified view of database, host and
storage• Reduces of total cost of ownership of system
management
Application Infrastructure Management Broad management for all application-dependent compon ents
DatabasesDatabases MiddlewareMiddleware
Extended Infrastructure Management:PlugExtended Infrastructure Management:Plug --insins
NetworkNetwork
OperatingOperatingSystemsSystems
ServersServers
• Dell PowerEdge
• Linux• All Unix• Microsoft• MVS
• IBM DB2 • MS SQL Server• Sybase ASE• MySQL*
• Check Point Firewall• Juniper NetscreenFirewall• F5 BIG-IP• Nortel Alteon *
ApplicationsApplications
• Microsoft Exchange • SAP *
Virtual ServersVirtual Servers
• VMWare
• Oracle VM (coming soon)
StorageStorage
• NetApp Filer• EMC Celerra, Clariion, Symmetrix DMX• Pillar Axiom*• Onaro SANScreen *• Veritas Cluster Server *• Symantec Storage Foundation* • HP Storage EVA * (coming soon)• IBM DS4000 Storage * (coming soon)• NEC Storage * (coming soon)* Partner Developed
• IBM WebSphere Application Server• IBM WebSphere MQ• JBoss Application Server • Apache Tomcat• Microsoft IIS• Microsoft Active Directory• Microsoft .NET Framework• Microsoft Exchange Server• Microsoft Commerce Server• Microsoft BizTalk Server• Microsoft ISA Server• Citrix Presentation Server*• Blue Lane PatchPoint*• Apache Tomcat
For More Information
search.oracle.com
or
oracle.com
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Questions?
Database mapping report
File Systems
RAW Devices
Volume Managers
ASM Disk Groups
ASM Disks
RAC Databases
Single Instance
Storage Capacity analysis
Storage
Used
Free
DatabaseBalanced
DatabaseUnder-
Capacity
Over-Capacity
ASM Database
Balanced
StorageUsed
Free
Storage Capacity Analysis
• What other databases am I sharing storage with?
• Analyze • storage allocated
• storage used• storage capacity
available.
• Helps in • planning and
provisioning storage
IBM DS4000
Host and ASM Metrics
• Disk Activity• Average Disk I/O Service Time
(ms)• Disk Block Writes (per second)• Disk Blocks Reads (per
second)• Disk Device Busy (%)• Disk Reads (per second)• Disk Writes (per second)
• Disk Group/ Disk Performance• I/O per second• IO Throughput• Read Response Time• Read Throughput• Reads per second• Response Time• Write Response Time• Write Throughput• Writes per second
Host ASM
