Database Error Messages

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  • 23ai
  • 21c
  • 19c
Updated
Jun 24, 2024

OCI-15027

active use of diskgroup "string" precludes its dismount

Cause

An ALTER DISKGROUP ... DISMOUNT command specified a diskgroup which had clients with open files in the diskgroup. Diskgroups cannot be dismounted until all open files in the diskgroup are closed.


Action

Stop all clients that are using this diskgroup and retry the ALTER DISKGROUP ... DISMOUNT command. Query the V$ASM_CLIENT fixed view in an ASM instance or use ASMCMD LSOF to list active clients.