Change the level of redundancy

I have a RAC database, using 1 disk group.
This disk group using HIGH redundancy. It has three discs.

Can I change the redundancy externally?
I want to do it because I need to remove 2 of the 3 disks.

Hello

You are right, that the current DG should be destroyed anyway in order to "change" the level of redundancy for the disk group.
The two options are:
-The data migration to a new group of disks created with the desired level of redundancy.
-Perform a backup on the database current DG you remove, re-create it with different level of redundancy then do restore/recovery.

I hope this helps as well.
Kind regards
József

Tags: Database

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