DB crashed Due To Diskgroup Metadata Corruption

(Doc ID 2177016.1)

Last updated on APRIL 17, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

ASM instance reports metadata block corruption on used space directory
(file 8) followed by disk offline causing forcive diskgroup dismount. But
later the diskgroup mounts fine and no block is actually corrupt in the
disk.

ORA-15196: invalid ASM block header [kfc.c:29297] [check_kfbh] [8] [120]
[14936863 != 14936886]

Cause

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