1 Copyright © 2011, Oracle and/or its affiliates. All rights reserved.

Automate Database Upgrades using Enterprise Manager 12c

Hari SrinivasanProduct Management

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Oracle 11.2.0.4

Upgrade Options across releases via EM12c

Oracle 11.1

Oracle 11.2.0.1/2

Oracle 10.2

Oracle 11.2.0.3HW

Oracle 12.1.0.1HW

Oracle 11.1.0.7

Oracle 10.2.0.5

Patchset Upgrades

HW Not across hardware

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Complete Database UpgradeUpgrade in Scale, exercise flexibility

Upgrade different Database family of products.

Supports:– Complete stack : Upgrade

Clusterware/GI + RAC DB in a cluster

– Flexibility: Upgrade GI only and then Upgrade RAC DBs

– In Scale: Upgrade one or many/all DBs at the same time.

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Comprehensive Pre Upgrade Checks

Comprehensive Pre Upgrade Checks– Runs checks at both GI and Database

layers.

– Executes RAC Check, Cluster Verification Utility (CVU), Pre-upgrade utility.

– Automated downloaded of latest version of the tools.

– Includes automated fix-up(s) for issues that could be resolved without intervention.

– Provides diff. report on re-runs for RAC check.

Integrated pre-check tools and fix-ups

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Comprehensive Pre Upgrade Checks

Comprehensive Pre Upgrade Checks– Runs checks at both GI and Database

layers.

– Executes RAC Check, Cluster Verification Utility (CVU), Pre-upgrade utility.

– Automated downloaded of latest version of the tools.

– Includes automated fix-up(s) for issues that could be resolved without intervention.

– Provides diff. report on re-runs for RAC check.

Integrated pre-check tools and fix-ups

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Effectively manage Downtime

Stage Software

Run pre-requisite checks

Run fix-ups

Any other manual intervention

Phase and Parallelize Upgrade

Upgrade Database(s)

Upgrade Grid Infra. (Rolling)

Downtime

• Set Break points to phase the upgrade

• Upgrade Databases in Parallel• Multiple RAC DBs at the same time across

the nodes.

Deploy SoftwareBreakpoints

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Back up and Restore

Restore available for both Software and Database.

– Downgrade Grid Infrastructure

– Restore DB from Backup

Pick a backup option.– Inline backup of the Database

before the upgrade process.

– Ignore, if you want to handle with separately.

Generic error handling options available for failures.

Handling Failures and Recovery

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Upgrade Data Guard Databases

Supports upgrade of primary and its multiple standby databases in rolling mode.

Upgrade GI OH (in case of RAC) or deploy DB OHs before the process starts.

Uses Active Data Guard on the primary database and the physical standby database to perform the rolling upgrade.

Automated rolling transient logical standby database upgrades

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Database Upgrades – Feature Summary Automation in Scale

Upgrade Standalone, RAC, and Data guard (Primary-Standby) Databases from older versions to higher versions (supports DB12c)

RAC Database Upgrades: Full stack upgrade covering Grid Infrastructure and RAC DBs

Flexibly upgrade to suit the operational and testing needs (GI only, Few RAC DBs or All RAC DBs)

Minimize downtime by upgrading software and Database separately

Comprehensive pre-requisite checks including RAC checks, cluster verify (CVU) checks , can be updated directly from MOS

Integrated back up and restore policies

Rolling Upgrade using Transient logical standby for Data Guard based Primary and Standby Databases

Support upgrading multiple standby environmentsOracle Data Guard

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Demo

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Commonly Asked Questions

How do I reduce downtime? Can I speed up my upgrade process?

Can this process be made standard and repeatable ?

How do I best manage my upgrade process across many clusters?

What happens in failure? Can EM help in handling or recovering?

How can I best use this automation across multiple datacenter locations?

Can EM handle the "ROOT steps" in the process?

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Reduce Downtime and Increase SpeedBest Practice Recommendation 1

Use Breakpoints to phase out the process:

Run Pre-requisites & Deploy Software (No Downtime)

Upgrade Cluster (Rolling)

Upgrade Database (Downtime)

Switch to upgrade in ‘Parallel’ for multiple Databases:

Upgrade databases in parallel within an Oracle Home.

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Make Upgrade Process Repeatable & Standard Best Practice Recommendation 2

Lock the input values

Save the procedure with its

inputs and publish it to other

DBAs. This defaults all values leaving just to pick the target to upgrade.

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Automate or Pause at ‘root’ stepsBest Practice Recommendation 3

Automate ‘root’ steps - Create named credentials for ‘root’ user via SUDO/PBRUN. (foo – sudo to – root)

OR

Skip Root to Pause at ‘root’ steps with approp. Command to run offline.

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Handling Failures and RecoveryBest Practice Recommendation 4

Failures: Procedure activity enables tracking upgrade in real time. Upon failure, user can review the Log details of every micro step. Some failures can be handled with ‘retry’ or ‘ignore’.

Restore: Automated restore of Grid Infrastructure back to the old release.

Restore DB from the back up. (Select atleast an incremental backup before upgrade)

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Upgrade at ScaleBest Practice Recommendation 5

Create a Change Activity Plan (CAP) to track upgrade across datacenter.

Aditionally, scriptize using EM Command Line Interface (EMCLI).

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Upgrade across Datacenters Best Practice Recommendation 6

Reduce software sharing and transport cost by creating local software library components in the remote datacenter.

NFS based reference option:• Copy s/w library to NFS location• Replicate storage and copy to

other sites • Recreate the components with

metadata from master s/w library

Agent based reference option:• Copy s/w library to location in

agent host• Replicate it to other EM’s agent

locations• Reference and create

components in other s/w library

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ResourcesLifecycle Management on OTN

http://tinyurl.com/em12lcm