DB crashed Due To Diskgroup Metadata Corruption
(Doc ID 2177016.1)
Last updated on FEBRUARY 12, 2019
Applies to:Oracle Database - Enterprise Edition - Version 126.96.36.199 and later
Information in this document applies to any platform.
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
ORA-15196: invalid ASM block header [kfc.c:29297] [check_kfbh]  
[14936863 != 14936886]
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