The ASM Failure Group Configuration Is Not Recommended
(Doc ID 2298577.1)
Last updated on SEPTEMBER 29, 2017
Applies to:Oracle Exadata Storage Server Software - Version 184.108.40.206.0 to 220.127.116.11.2 [Release 12.1 to 12.2]
Information in this document applies to any platform.
1. what's ASM failure group:
ASM Failure groups are used to place mirrored copies of data so that each copy is on a disk in a different failure group so that the simultaneous failure of all disks
in a failure group does not result in data loss.
2. The rule of ASM failure group configuration:
On Exadata, by default, all grid disks in a single Exadata Storage Server (or cell) belong to the same failure group to
tolerate the failure of a single storage server.
Below error message is found in Exachk report for version '18.104.22.168.3_20170331'(GI version: 22.214.171.124.0).
Status on exadb01:
FAIL => The ASM failure group configuration is not as recommended
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