Spare
Option
With a
spare disk, you can enhance the security of RAID 1 (Mirroring) array. If one of
the disks in the array fails, the spare disk will automatically take over.
You can
open the Edit Spare window to add or remove a Spare Disk. There are
three ways to open the Edit Spare window.
1.
Right-click the RAID 1 array on the array tree will pop up a menu. Select Edit
Spare on the menu.
2.
Click the menu Configuration->Edit Spare.
3. Click the Spare
button on the tool bar.
Note: When you create a RAID 1 array, you can select the Use a spare disk option to specify a spare disk.