ORA-15024: Discovered Duplicately Numbered ASM Disk
(Doc ID 1457185.1)
Last updated on JANUARY 24, 2020
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.4 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud 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
Information in this document applies to any platform.
On : 10.2.0.4 version, STORAGE
ASM failed to start
after server reboot, the disk group can not mount,If you try to mount it you may get below error
SQL> alter diskgroup <DGNAME> MOUNT;
alter diskgroup <DGNAME> MOUNT
ERROR at line 1:
ORA-15032: not all alterations performed
ORA-15024: discovered duplicately numbered ASM disk 4
There could have been duplication of Major/Minor number at the os level.
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