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ASMCA Gets Ora-15020 when using non-default disk paths (Doc ID 1086140.1)

Last updated on JANUARY 24, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 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.


ASMCA is not able to use disk paths other than /dev/raw/* when configuring ASM and create diskgroups at initial setup for single instance environment.
RAC environment did not have this issue.

Also, diskgroup creation with any disk paths works at the command line once the ASM instance is configured.

ASMCA would fail with ORA-15020 errors while there was no duplicate disk path found.

Sample errors in ASMCA log are


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