Metadata Corruption Preventing Drop of Disk From Diskgroup

(Doc ID 1457831.1)

Last updated on MARCH 19, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 to 11.2.0.3 [Release 10.2 to 11.2]
Information in this document applies to any platform.

Symptoms

When attempting to drop a disk from a diskgroup it moves to dropping and stays in that state permanently.,
the following error occurs.

ERROR
-----------------------
ORA-15196: invalid ASM block header [kfc.c:23908] [obj_kfbl] [1] [2560] [3 != 1]
ORA

BUSINESS IMPACT
-----------------------
The issue has the following business impact:
Due to this issue, users cannot free disk for other use.

Cause

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