Instruction manual

7
LED Status Description
ON
SPAN: Spanning concatenates multiple hard
drives into a single large disk. Provides no
performance or redundancy benefits.
OFF
ON
RAID 0 (Stripe): Striping combines multiple disk
into a single large disk array. The data is split
evenly across each disk simultaneously. Read/
write performance is increased as a result, but
failure of any one disk will make the entire array
unusable.
OFF
ON
RAID 1 (Mirror): Mirroring writes the same data
across multiple disk, creating a mirror copy. This
provides redundancy in case one drive fails.
OFF
ON
RAID 3: Uses striping to write data to multiple
disks like RAID 0, but reserves one disk for
parity. The single parity disk is a bottle-neck for
writing since every write requires updating the
parity data. Failure of any one disk will still allow
access to the data, until the disk is replaced.
OFF
ON
RAID 5: Uses striping to write data to multiple
disks simultaneously and distribute parity
across multiple disks. Failure of any one disk
will still allow access to the data, until the disk is
replaced.
OFF
ON
RAID 01 (0+1): Creates a mirrored array, then
stripes each mirrored disk. Combines the
performance of RAID 0 with the redundancy of
RAID 1.
OFF