Storage Monitoring Made Easy for DBAs: Diagnosing Performance Problems Anirban Chatterjee Sriram Palapudi Senior Product Manager Consulting Member of Technical Staff
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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 <Insert Picture Here>
Why DBAs Need to Monitor Storage? Insure Storage meets throughput needs Storage has adequate I/O capacity Storage capacity can scale up Diagnose performance problems Database Host Storage
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 Connector Help Desk System
Oracle Enterprise Manager Increases Business Efficiency Manage applications topdown, 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
Oracle s Complete Enterprise Application Stack Built-in & Integrated Manageability Leader in the complete enterprise application stack Built-in manageability into every tier Integrated manageability across the entire stack
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 <Insert Picture Here>
Comprehensive Storage Monitoring Breadth Storage 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 DISKS Database Host Storage
Database to Storage Mapping Reports Mapping Database to several Storage Systems Symantec Storage Foundation EMC Symmetrix DMX Storage NEC Storage
Storage Configuration Monitoring Comprehensive depth of configuration information Veritas Cluster Server NEC Storage IBM DS4000 EMC Clariion
Storage Performance Reports IBM DS4000 NEC Storage
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 <Insert Picture Here>
Key players Tablespace Datafiles Volumes/ Filesystems/ Diskgroups LUN Disks DATABASE STORAGE
Databases layout on storage Tablespace Datafiles Volumes/ Filesystems/ Diskgroups LUN Disks
Database Storage Layout Best Practice Spread 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? Host Adapters Processors Cache Disk Adapters LUNs Disks
Database Storage Layout Best Practice Spread 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 Host Adapters :Port # Processors Cache Disk Adapters LUNs Disks
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 <Insert Picture Here>
Database Performance ADDM Report ADDM Log File Snapshots in Automatic Workload Repository Automatic Self-Diagnostic Diagnostic Engine Engine
Storage Performance FrontEnd Adapter Port 0049:13B:1 LUNs (Hyper) Disks
LUN(Hyper) Performance 0049:13B:1 ADDM Log File Disk Adapters LUN
Front End Adapter Performance 0049:13B:1 ADDM Log File Host Adapter:Port #
Diagnosing Storage System Errors ADDM Log File Host Adapters : Storage Status (Active, System Failed) Ports Online, Dead,Offline) Disk Adapters : Status and Availability Disks : Data Sector Invalidations, RAID Errors, Spares Availability
Personalization Select the metric alerts for the components that are of interest Targeted Monitoring Default Thresholds Modifiable Thresholds Different Notification Methods E-Mail SNMP
Diagnosing Performance Problems View charts of related targets on one screen DB Host Storage
Diagnosing Configuration Changes <Insert Picture Here>
Configuration Management Know what you have and know what you re running Software Installations SW and HW Configurations Resource Relationships Certified Configurations CMDB reports CMDB Statistics Policy standards Audit Reports Decision support for incident, problem, change, and release management Best Practices Configuration Management Database (CMDB) 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
Storage Configuration Analysis Did something changed in my storage configuration today?
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 <Insert Picture Here>
Storage Plug-in Architecture Systematic way to extend Enterprise Manager Custom storage Device ORACLE DB ORACLE MIDDLEWARE ORACLE APPS
Storage Plug-in Architecture EM Client OMS REPOSITORY Host EM AGENT: for DB/ASM/Host monitoring Host ASM/DB ASM/DB Storage System READ-only view of Storage Single agent for multiple arrays Configurable collection frequency Native Storage CLI Calls
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 components Extended Infrastructure Management:Plug-ins Virtual Servers Databases Middleware Network VMWare Oracle VM (coming soon) Operating Systems Linux All Unix Microsoft MVS Servers Dell PowerEdge * Partner Developed IBM DB2 MS SQL Server Sybase ASE MySQL* Storage 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) 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 Check Point Firewall Juniper Netscreen Firewall F5 BIG-IP Nortel Alteon * Applications Microsoft Exchange SAP *
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Questions? <Insert Picture Here>
Database mapping report RAC Databases Single Instance ASM Disk Groups ASM Disks File Systems RAW Devices Volume Managers
Storage Capacity analysis Free Free Balanced Database Used Under- Capacity Database Storage Over- Capacity Balanced Used Storage ASM Database
Storage Capacity Analysis What other databases am I sharing storage with? IBM DS4000 Analyze storage allocated storage used storage capacity available. Helps in planning and provisioning storage
Host and ASM Metrics Host 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) ASM 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