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ASM 12c: Unable to Create Diskgroups through ASMCA with a Smaller Quorum Disk/Failgroup (Doc ID 1960776.1)

Last updated on FEBRUARY 20, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


1) On ASM release , diskgroups cannot be created through ASMCA with a smaller Quorum disk/failgroup.

2) ASMCA fails with the following error:

<<< The size of the disks selected is not the same as to allow for an equal number of 1 MB AU size blocks >>>



Regular disks/failgroups have a size = 10,238 MB each, whereas the Quorum disk/failgroup has a size = 500MB.




2) But the same statement has success through SQL*Plus:





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