Alejandro Vargas' Blog

On this 6th scenario we lose all Oracle Homes on one node.

On this environment Oracle Homes are installed on this path: /oradisk/app01/oracle/product

These are the installed Oracle Homes:

• ASM Home
• RDBMS Home
• CRS Home

The scenario is triggered using the following script:

Recovery from such a loss is greatly simplified by having a good backup of the Oracle Homes.
In many sites you will not find such a backup, and if reinstalling the software is not an issue restoring all parameter files may be sometimes difficult.

The recovery steps include:

• Check available backups
  
• Restore ASM and RDBMS homes from a good backup
  
• Reinstall Oracle Clusterware
• Restore OCR from a backup from before the crash
  
• Restart all RAC components
• Check
  

Crash script and full details of the test: Crash Scenario 5 - Oracle Homes Loss

Important! : Before running this crash scenario be sure to Backup the Oracle Homes directories and OCR details to backup and recover them are included on the attached file.