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SECTION 12: RAID ARRAYS
NOTE
After installing a spare HDD in the chassis, it may need to be initialized before it is used.
3. Click the “Edit” ( ) icon in the Hot Spare column for the spare disk that was installed (here in slot 4). In the screen capture
shown below, notice that the
Type
of the spare disk changed from
Normal
to
Hot Spare
, and the icon in the Hot Spare
column changed to the
Delete
( ) icon.
The Hot Spare disk is now ready for use.
12.2 Rebuilding a RAID array (example)
The Status of an array can be any of the following:
•
Functional
: There is no disk loss in the array.
•
Degraded
: The number of lost disks has exceeded the limit. When the virtual disk is in Degraded status, you can restore it to
Functional status by rebuilding the array.
•
Offline
: All other conditions. When the Status is neither Degraded nor Functional, it is considered Offline.
The Status of the array is shown in the
MENU | HDD | Array
display.
Arrays are automatically rebuilt when the array status is Degraded and a Hot Spare HDD is installed in the system.
12.2.1 Rebuilding array process - example
When the chassis is configured with a Hot Spare disk and the array is in
Degraded
status, the system will rebuild the array using
the Hot Spare disk. To prepare for automatic rebuilding of the array, the system was configured as shown below, with a Global Hot
Spare disk installed in physical slot 4. To configure a Hot Spare, see “12.1.1 Installing a Hot Spare disk” on page 209.
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