Chaparral K5312/K7313 - Manual (Page 74)

G- and K-Series User’s Guide
6-2
While using a dedicated spare is the most secure way to provide spares for your
arrays, it is also expensive to keep an idle drive assigned to each array. An alternative
method is to assign one or more idle drives to the spare pool. See Managing the Spare
Pool on page 6-5.
Adding a Dedicated Spare
You assign dedicated spare drives to a specific array. If a member drive in the array
fails, the controller uses a dedicated spare drive to automatically reconstruct the array.
You can add dedicated spare drives to Mirrored (RAID 1 and RAID 10) and Parity
(RAID 3, RAID 4, RAID 5, and RAID 50) arrays when you create the array or
afterward. You can assign up to four dedicated spare drives to an array. For more
information about assigning spares when you create an array, see Creating Arrays on
page 4-1.
Note: A spare cannot be added that does not have enough capacity to
replace the smallest member in the array.
To add a dedicated spare:
1
From the System Menu, select Array Menu and press Enter.
The Select Array screen displays with a list of existing arrays.
2
Select the array you want and press Enter.
The Array Menu screen displays.
3
Select Add Spare and press Enter.
The list of drives screen displays listing the available drives.
Note: If a drive was a member of an array and was removed from the array,
you cannot use it as a spare until you clear the drive’s metadata. For more
information, see Clearing Metadata from a Drive on page 8-4.
4
Select the drive you want to add as a spare and press Enter.
The system confirms the change.
5
Select Yes and press Enter.