Oracle : Ошибка ORA-15003

"diskgroup \"%s\" already mounted in another lock name space"
*Cause: The diskgroup could not be mounted by the ASM instance because
it was operating in a lockspace different than another existing
ASM instance which had already mounted the diskgroup.
*Action: Check the LOCK_NAME_SPACE initialization parameter value, or
dismount the diskgroup from the other ASM instances.

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