- 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.
It should be
noted that Oracle MOSC documentation reveals information
regarding error ORA-15029 in congruence with ASM. It reveals
that bug #3265676 MAY create problems with this:
"Before
rebalancing of a diskgroup activated by a drop disk command
finished, an add disk command will stop the original rebalance
pre-maturely even though the 2nd command failed with an expected
ora-15029."
