Obligation to have all failed to equal size groups

ASM user guide provides the following:

"Failure groups must all be the same size. Groups of the failure of different sizes can result in reduced availability.

Let's say we have four FGs in a disk with normal redundancy group: 2 x 1 + 2 x 2 TB.

What is this config again creates a possibility of 'reduced '? the availability Or ASM will place two copies of each block in the plu FGs even after that the smaller FGs are out of space, so that the redundancy is maintained?

Hello

All disks must be of same discs, which include all the records of all the failgroup.

in the case of high/normal redundancy, is there is a problem of loss of disc and disc returns with disk_repair_time, then manually, you can online this disk system no-exadata without rebalancing.

But if the drive comes after disk_repair_time, you need to add this drive manually and should help rebalance finish.

See: -.

==========

Fast mirror ASM Resync - example to simulate the failure of transitional disk and restore disk (Doc ID 443835.1)

Kind regards
Loriette

Tags: Database

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