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Exadata MAA Best Practices Series

Session 10: Exadata MAA

Lawrence To

Senior Manager, Exadata and MAA Best Practices

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Exadata MAA Best Practices Series

1. E-Business Suite on Exadata

2. Siebel on Exadata

3. PeopleSoft on Exadata

4. Exadata and OLTP Applications

5. Using Resource Manager on Exadata

6. Migrating to Exadata

7. Using DBFS on Exadata

8. Exadata Monitoring

9. Exadata Backup & Recovery

10. Exadata MAA

11. Troubleshooting Exadata

12. Exadata Patching & Upgrades

13. Exadata Health Check

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Assumptions and Terminology

• General Oracle HA Knowledge expected

• High Availability Overview documentation

• Terminology• MAA – Oracle Maximum Availability Architecture

• HA – High Availability

• RAC – Oracle Real Application Clusters

• ASM – Oracle Automatic Storage Management

• Flashback – Oracle Flashback Database Technology

• HARD – Hardware Assisted Resilient Data

• RMAN – Oracle Recovery Manager

• ASR – Automated Service Request

• EM – Oracle Enterprise Manager

• MOS – My Oracle Support Note

http://www.oracle.com/pls/db112/to_toc?pathname=server.112/e17157/toc.htm

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Customer Take-Aways

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Exadata MAA

1. MAA is Oracle’s availability blueprint

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Exadata MAA


2. Exadata Database Machine is MAA’s main platform

7

Exadata MAA


2. Exadata Database Machine is MAA’s main platform

3. Exadata MAA is fastest and best availability solution

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MAA is Oracle’s availability blueprint

Oracle’s application-oriented High Availability, Data

Protection, and Disaster Recovery solution for customers

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Oracle’s Database HA Solution SetDatabase Integration Unique in the Industry!

Server

Failures

Data

Failures

System

Changes

App

Changes

Unplanned

Downtime

Planned

Downtime

Real Application Clusters

Flashback

RMAN & Oracle Secure Backup

ASM

Data Guard and GoldenGate

Online Reconfiguration

Rolling Upgrades

Edition-based Redefinition

Ora

cle

MA

A B

es

t Pra

ctic

es

Online RedefinitionData

Changes

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MAA is Oracle’s Availability Blueprint

• Validated in our labs and proven with customers

• Operational and Configuration Practices needed for

• Fault tolerance and fast repair

• Online changes and rolling upgrade

• Lowest downtime and highest availability

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Generic MAA Practices

• MAA evolved with each release and with new feature

enhancements

• Challenges

1. Hardware may not be optimized or fault tolerant

2. Software requirements may not present

3. Customers may not have the skills or resources to execute

practices

Resulting in HA gaps and risks

12

Exadata Database Machine is MAA’s

Reference Platform

More testing, optimization and integration by Oracle.

Less work and higher availability for customers.

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Extreme performance in a highly-available, highly-secure environment

• Best for Data Warehouse

• Best for OLTP

• Best for consolidation

Exadata Storage Server Grid

• 14 high-performance storage servers

• 5TB flash storage

• Fault tolerance for both cell and disk

failures using ASM redundancy

• Exadata storage built-in corruption

checks

Oracle Database Server Grid

• 8 high-performance RAC

compute servers

• Protection from server failures

InfiniBand Network

• 40 Gb/sec fault-tolerant unified

server and storage network

• Multiple switches for HA

• Redundant ports on Host

Channel Adapters

Exadata Database MachineBest Availability Solution (Hardware, Software, Complete)

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1. Built-in hardware and component redundancy

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2. Oracle software enabled application availability

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3. Documented and validated application and database

MAA best practices

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3. Documented and validated application and database

MAA best practices

4. Integrated MAA practices at deployment

5. Comprehensive monitoring

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Pop Quiz

• How long does it take to deploy, validate and optimize

MAA on a different platform?

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Pop Quiz

• How long does it take to deploy, validate and optimize

MAA on a different platform?

• With Exadata Database Machine

• 3-5 days to deploy

• Installed with recommended software and firmware

• Running test system with database cluster, storage pool and

configuration practices (ASM and database settings)

• MAA blueprint and software optimized for Exadata Database

Machine

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Exadata MAA is the Best Availability

Solution

Applicable for OLTP, data warehouse, and consolidated

system

Major $$$ savings

Reduced MAA deployment and configuration time

Much lower downtime

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Examples of High PerformanceMAA Best Practice Benchmark Tests and Customer Experiences

HA Tests Non-Exadata Exadata

Archiving

8 X

30 MB/sec per instance 214 MB/sec per instance

5.8 TB/hour for full rack

Redo Apply

6-10 X

30 MB/sec OLTP

100 MB/sec Loads

200-300 MB/sec OLTP

600+ MB/sec Loads

Local Disk Backups

and Restores

5-6 X

< 3 TB/hour 17-18 TB/hour

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3TB/Hour Load in a MAA ConfigurationUsing Complete MAA Best Practices

• 3 TB/hour

• Archivelog mode

• Force logging

• Flashback Database

• Corruption protection

• db_block_checksum=typical, db_block_checking=off,

db_lost_write_protect=TRUE

• Real Application Clusters

• ASM redundancy

• Data Guard ASYNC redo transport

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MAA Configuration Best PracticesValidated and optimized for Exadata Database Machine

• Starting Point

• ASM and Disk Groups

• Flashback

• Corruption Protection

• Data Guard

• Planned Maintenance

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Starting Point

1. Recommended software (MOS 888828.1)

2. Exadata testing and patching practices (MOS 1262380.1)

3. Hub of MAA and Exadata best practices (MOS 757552.1)

4. Exadata MAA HealthCheck (MOS 1070954.1)

5. Exadata Monitoring (MOS 1110675.1) and ASR (OTN)

6. MAA and Exadata OTN websites

https://support.us.oracle.com/oip/faces/secure/km/DocumentDisplay.jspx?id=888828.1&h=Y

https://support.us.oracle.com/oip/faces/secure/km/DocumentDisplay.jspx?id=1262380.1




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ASMDisk Group Configuration and Deployment

1. Disk Group striped across all cells and disks

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2. High Redundancy Disk Group

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3. Optimal file placement

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3. Optimal file placement

4. Included in standard deployment

http://www.oracle.com/technetwork/database/features/

availability/exadata-maa-131903.pdf

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Flashback DatabaseConfigure for all Applications

• Enable Flashback Database

• Minimum impact to OLTP workloads (< 2%)

• On primary: 3 TB/hour DW load in 11.2.0.2

• On standby: 1.7 TB/hour redo apply rate

• Operational best practices required

• 20% overhead for heavy loads during flashback ramp up

eliminated in 11.2.0.2

• MOS 565535.1

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Data Corruption ProtectionConfiguration Best Practices

• ASM auto repair, Exadata HARD compliant checks and

Active Data Guard auto-block repair are transparent

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Data Corruption ProtectionConfiguration Best Practices

• ASM auto repair, Exadata HARD compliant checks and

Active Data Guard auto-block repair are transparent

• Set DB_BLOCK_CHECKSUM=TYPICAL | FULL and

DB_LOST_WRITE_PROTECT=TYPICAL

• Less than 5% performance impact for DW and OLTP workloads

• Evaluate DB_BLOCK_CHECKING = MEDIUM | FULL

• Deployment defaults: ASM, Exadata HARD,

db_block_checksum, db_lost_write_protect

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Data Guard on Exadata

• Standby Instantiation

• MOS 1206603.1

• 11.7 TB/hour with RMAN backup as copy

• Network Configuration

• MOS 960510.1 and MOS 951152.1

• Use GigE, 10GigE or IB

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Data Guard Enhanced HA

• Auto Block Repair - zero application downtime for physical

block corruptions

• HA and DR solution when primary goes awry

• Enhanced planned maintenance

• Upgrades and migrations to Exadata Database Machine

• Simplified database rolling upgrade with Data Guard

• Data Guard Standby-First Patch Apply (MOS 1265700.1)

http://www.oracle.com/technetwork/database/features/availability/maa-

wp-dr-dbm-130065.pdf

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Planned Maintenance

• Strategy to minimize risk (MOS 1262380.1)

1. Validate in TEST (Functionality, Performance, HA)

2. Patch Data Guard (Standby-First Patch) and validate

a) Snapshot Standby for best validation

b) Transient Logical

c) Active Data Guard

3. Patch production or Data Guard switchover

• Rolling Upgrade

1. Exadata, Oracle Grid Infrastructure (Oracle Clusterware, ASM),

RAC Rolling Upgrade

2. Standby-First Patch, Transient Logical Standby

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Business Takeaways

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Business Value Take-AwaysExadata MAA

• Best availability solution

• Highest availability and lowest downtime

• Significant risk reduction

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Business Value Take-AwaysExadata MAA

• Best availability solution

• Highest availability and lowest downtime

• Significant risk reduction

• Significant time and cost savings in deployment and

configuration of MAA

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Best Practice Takeaways

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Best Practice Take-AwaysExadata MAA

1. Recommended Software (MOS 888828.1)


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2. Exadata Testing and Patching Practices (MOS 1262380.1)



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3. Hub of MAA and Exadata Best Practices (MOS 757552.1)




42





4. Exadata “MAA” Health Checker (MOS 1070954.1)




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6. Storage Grid High Redundancy and file placement (http://www.oracle.com/technetwork/database/features/

availability/exadata-maa-131903.pdf)





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6. Storage Grid High Redundancy and file placement (http://www.oracle.com/technetwork/database/features/

availability/exadata-maa-131903.pdf)

7. Data Guard practices http://www.oracle.com/technetwork/database/features/availability/maa-wp-dr-dbm-130065.pdf

• Exadata MAA best practices paper coming soon





http://www.oracle.com/technetwork/database/features/availability/maa-wp-dr-dbm-130065.pdf









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Oracle MAA with Database MachineHardware, Software, Complete Availability Solution

• Comprehensive protection from failures: server, storage, network, site, corruptions

• Correction from human errors: database, table, row, transaction

• Active DR: Real-time remote standby open for query offload

• Online indexing and table redefinition

• Online patching and upgrades

WAN

Real

Application

Clusters

ASM

Fast

Recovery Area

Active

Data Guard

Oracle Secure Backup

• Exadata MAA: optimized and validated for Database Machine

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Appendix

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Best PracticesAdditional Resources sponsored by MAA and X-Team

• MAA and Exadata OTN website contains best practices and different

architectural solutions

• MAA OTN website:

http://www.oracle.com/technetwork/database/features/availability/maa-090890.html

• Sun Oracle Database Machine and Exadata OTN website

http://www.oracle.com/technetwork/database/exadata/index-089737.html

• Openworld presentations

• http://openworld.vportal.net







http://openworld.vportal.net/

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SponsorsExadata MAA Team and X Team

• Operational and Configuration best practices

• Optimized and integrated for Exadata

• Generic practices for other platforms

• Examples: Migration, Backup/Recovery, Monitoring,

Troubleshooting, Patching, MAA, Consolidation, Active Data

Guard, Cloning/Reporting, Application Failover

• Applications MAA and Scalability

• Optimized and integrated for Exadata and Exalogic

• Examples: E-Business Suite, Siebel, Peoplesoft, Fusion

Middleware

• Exadata Strategic Reference Program

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