Which SyncMirror command mirrors an existing unmirrored aggregate where the Data ONTAP selects the disk drive?

Which SyncMirror command mirrors an existing unmirrored aggregate where the Data ONTAP selects the disk drive?

• A. aggr mirror aggrY
• B. aggr mirror aggrY -m
• C. aggr mirror aggrT -d 12@144
• D. aggr mirror aggrY -m 12@144

Answer: (A)

Creating a SyncMirror when you want Data ONTAP to choose the disks is done with the simplest form of the command: issuing it for the aggregate without specifying any disks or extra options. This tells ONTAP to establish a mirror pair and automatically select appropriate disks for the new mirror. Any option that fixes the disk choice or changes the mirroring mode would override that automatic selection, so those alternatives don’t fit the requirement. Therefore, the correct command is the straightforward form: aggr mirror aggrY.

Creating a SyncMirror when you want Data ONTAP to choose the disks is done with the simplest form of the command: issuing it for the aggregate without specifying any disks or extra options. This tells ONTAP to establish a mirror pair and automatically select appropriate disks for the new mirror. Any option that fixes the disk choice or changes the mirroring mode would override that automatic selection, so those alternatives don’t fit the requirement. Therefore, the correct command is the straightforward form: aggr mirror aggrY.