You are managing an ASM instance. You previously issued the following statements:
ALTER DISKGROUP dg1 DROP DISK disk2;
ALTER DISKGROUP dg1 DROP DISK disk3;
ALTER DISKGROUP dg1 DROP DISK disk5;
You want to cancel the disk drops that are pending for the DG1 disk group.
Which statement should you issue?
A.
ALTER DISKGROUP dg1 UNDROP disk2, disk3, disk5;
B.
ALTER DISKGROUP dg1 UNDROP;
C.
ALTER DISKGROUP dg1 UNDROP DISKS;
D.
You cannot cancel the pending disk drops.
Explanation:
Use this clause to cancel the drop of disks from the disk group. You can cancel the pending
drop of all the disks in one or more disk groups (by specifying diskgroup_name) or of all the
disks in all disk groups (by specifying ALL).
This clause is not relevant for disks that have already been completely dropped from the disk
group or for disk groups that have been completely dropped. This clause results in a longrunning operation. You can see the status of the operation by querying the
V$ASM_OPERATION dynamic performance view.
