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Chapter 4: Storage
Network Storage System (NSS) Administrator Guide
Chapter
4
are numbered from 1 to 4 from left to right on the chassis (when facing the chassis front
panel) and correspond with the port number.
-
Cancel Locate:
There is currently a locate request set up for the applicable disk drive. Click
Cancel Locate
to cancel the locate request. This lets you send a locate request for another
disk drive.
RAID Arrays Table
The
RAID Arrays
table lists each array (either RAID or JBOD) currently configured. The table is
made up of the following:
•
Label:
The name assigned to the array.
•
RAID Level:
The configured RAID level.
•
Size:
The size allocated for the array. The amount of available storage for an array depends
on the number of drives in the array, the size of the smallest drive, as well as the RAID level
assigned. The calculation for an array, according to RAID level, is as follows. (Where "n" =
the number of drives in the array and "s" = the size of the smallest drive in the array.)
-
JBOD
= sum(size of each drive)
-
RAID0
= n * s
-
RAID1
= s
-
RAID5
= (n-1) * s
-
RAID10
= n * s /2
•
Status:
The current condition of the RAID array. Options include:
-
Clean:
The array is in a normal state. This status is color-coded green.
-
Degraded:
For RAID arrays with redundancy (i.e., RAID levels 1, 5, 10), one or more of the
redundant disk drives has been removed from the system or has failed. In this state, the
array is fully recoverable. This status is color-coded orange.
-
Failed:
One or more disk drives have been removed or are unrecoverable from a RAID0 or
a JBOD array. For RAID levels 1, 5, 10, it indicates a loss of
all
the redundant disks in the
array plus at least one more drive. In this state, the array is unrecoverable.
-
Rebuilding:
A RAID level with redundancy is being rebuilt. Note that during a rebuild, the
RAID array is still fully usable. This status is color-coded orange. During the rebuild, the LED
for the disk drive slowly blinks green.
-
Stopped:
A RAID array has been stopped by the system (through degraded mode
management) due to it being in degraded mode for the amount of time configured in the
Storage Options
page. Volumes associated with a stopped array are unmounted and
unusable. To start the RAID array, click the
Start
button.
