ONTAP 9.13.1 commands

The storage disk replace command starts or stops the replacement of a file system disk with spare disk. When you start a replacement, Rapid RAID Recovery begins copying data from the specified file system disk to a spare disk. When the process is complete, the spare disk becomes the active file system disk and the file system disk becomes a spare disk. If you stop a replacement, the data copy is halted, and the file system disk and spare disk retain their initial roles.

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Having disks in the same carrier in the same RAID group is not desirable because a carrier failure can cause a simultaneous outage for two disks in the same RAID group. You can replace a disk in an aggregate with a disk that causes this situation, but when an alternate disk becomes available, Data ONTAP automatically initiates a series of disk copy operations to put the disks into different RAID groups. For this reason, you should use this parameter only when necessary. When possible, ensure that disks housed in the same carrier are in different RAID groups.

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This parameter affects only the disk replace operation. It is not a persistent attribute of the aggregate.

The following example begins replacing a file system disk named 1.0.16 with a spare disk named 1.1.14 .