Linksys NSS4100 Cisco NSS4000 and NSS6000 Series Network Storage System Admini - Page 47

RAID Arrays Table, RAID Arrays, Label, RAID Level, RAID0, Status, Clean, Degraded, Failed, Rebuilding

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Configuring your Storage RAID Arrays Table 4 RAID Arrays Table The RAID Arrays table lists each array (either RAID or JBOD) currently configured. The table includes 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. - 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 is removed from the system or is failed. In this state, the array is fully recoverable. This status is colorcoded orange. - Failed: One or more disk drives were 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 colorcoded orange. During the rebuild, the disk drive LED 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. Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide 39

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Configuring your Storage
RAID Arrays Table
Linksys Small Business NSS4000 and NSS6000 Series Network Storage System Administration Guide
39
4
RAID Arrays Table
The
RAID Arrays
table lists each array (either RAID or JBOD) currently configured.
The table includes 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.
-
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 is removed from the system or
is failed. In this state, the array is fully recoverable. This status is color-
coded orange.
-
Failed
: One or more disk drives were 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 disk drive LED 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.