Tag Archives: ORA-15029

ORA-15029: disk ‘string’ is already mounted by this instance

oracle

ORA-15029: disk 'string' is already mounted by this instance
Cause: An attempt was made to add to a diskgroup a disk that was already mounted by the current instance as part of some (possibly other) diskgroup.
Action: Specify a different disk in the command. Note that not even the FORCE option can be used to correct the situation until the diskgroup containing the disk becomes dismounted by this instance.

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