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12c ASM: Unable To Add New Disks With Dissimilar Size To ASM Diskgroups (Normal or High Redundancy) Due To ORA-15410 (New 12c ASM Enhancement Validation/Constraint) (Doc ID 1938950.1)

Last updated on NOVEMBER 21, 2020

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) Adding new disks to existing ASM diskgroups (Normal or High Redundancy) on ASM release reports the following error through SQL*Plus:


2)  Whereas: ASMCA reports the next similar error message (performing the same add disk(s) operation):

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





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