Managing the System
Disk Management
Cisco Small Business NSS 322, NSS 324, and NSS 326 Smart Storage Administration Guide
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Depending on the NAS model that you own, volumes can be created in the
following volume types:
Volume Type
Description
Single Disk
Volume
Each disk will be used as a standalone disk. However, if a
disk is damaged, all data will be lost.
RAID 1 Mirroring
Disk Volume
RAID 1 (mirroring disk) protects your data by automatically
backing up the contents of one drive onto the second
drive of a mirrored pair. This protects your data if one of
the drives fails. Unfortunately, the storing capacity is equal
to a single drive, as the second drive is used to
automatically back up the first. Mirroring Disk is suitable
for personal or corporate use to store important data.
RAID 0 Striping
Disk Volume
RAID 0 (striping disk) combines 2 or more drives into one
larger disk. It offers the fastest disk access but it does not
have any protection of your data if the striped array fails.
The disk capacity equals the number of drives in the array
times the size of the smallest drive. Striping disk is usually
used to maximize your disk capacity or for fast disk
access but not for storing important data.
Linear Disk Volume
(JBOD)
JBOD is also defined as “Just a Bunch of Disks.” You can
combine two or more disks into one larger disk. When a
file is saved, it will be saved on physical disks sequentially,
but does not have a disk failure file protection function.
The overall capacity of linear disk is the sum of all disks.
Linear disk is generally used for storing large data and is
not appropriate to use for file protection of sensitive data.
