Upgrading Oracle Grid Infrastructure 11gR2 to 12cR2

Here I would be discussing how to upgrade Oracle 11gR2 (11.2.0.4) Grid Infrastructure to Oracle 12cR2 (12.2.0.1) on the same server. This upgrade process was done on Linux 6 (x86_64). 1. Before the GI upgrade backup the OCR manually. This could be used in downgrading the GI from 12.2.0.1 to 11.2.0.4 later one. If you […]

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Restore and Backup the current OLR

Backup current OLR and all available OLR backups

Verify available backups

Verify available backups from OS

Restore  OLR from Current Backup. Shutdown CRS and check that ohasd.bin process is not running and restore OLR

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Relocate Voting Disk to a different ASM diskgroup in 11gR2

Check current status :

Relocate Voting Disks

Check current status :

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Relocate OCR to a different ASM diskgroup in 11gR2

Create a new diskgroup for OCR Use ascma and create new Data group named OCR and verify that this datagroup is mounted

  Check the current OCR location

Add +OCR datagroup as new OCR location and verify status

Delete the old OCR location

Check the current OCR location

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