91
NOTE!
Take RAID 5 that consists of 4 disks as an example. The array is degraded
when one disk is lost. When two disks are lost, the array is damaged.
A degraded array can be automatically rebuilt in ten minutes if these
conditions are met: a hot spare disk is available; the capacity of the hot
spare disk is not less than that of any disk in the array. A degraded array
without a hot spare disk can only be rebuilt manually under
Storage
>
Array > Array
. By default the first local disk that satisfies requirements is
selected.
Deleting an Array
CAUTION!
Deleting an array will erase all data on it.
1.
Click
Storage
>
Array
>
Array
.
2.
Click
for
the array to delete. A confirmation message appears.
Click
Yes
.
Disk Group
Assign hard disks to a disk group and use the disk group to store
recordings and snapshots of specified cameras. Different arrays can be
assigned to different disk groups.
Redundant disks cannot be assigned to any disk group. Disk group
information will be initialized if any disk in the group is formatted.
1.
Click
Storage
>
Disk Group
.
