Getting Started
Starting NAS Configuration
Cisco Small Business NSS 322, NSS 324, and NSS 326 Smart Storage Administration Guide
29
2
You are redirected to a window where you can select the disk configuration.
STEP 22
Select the disk configuration.
NOTE
It is recommended to configure the NSS 324 or NSS 326 with RAID 5 if there are
three or more disks installed.
•
Disk configuration:
The following options are available:
-
Do not set disk configuration
—If you have created disk volume
configuration or plan to create multiple disk configurations, select not to
initialize the disk drives.
-
Single Disk
—Uses the disk drives as single disk volumes. When a drive
failure occurs, all data is lost.
-
JBOD (Linear)
—JBOD lets you combine multiple disks of mixed
capacities into a single logical storage device. The capacity of the JBOD
array is the sum of the total capacities of the individual component disks
(that is, it does not have the limitation of RAID 1 where you lose some
capacity when using mixed sized disks). JBOD offers no performance
increase compared to the component disks. It has lower reliability than
the component disks, as the failure of a single disk results in the failure of
the whole array.
-
RAID 0
—Distributes data across several disks in a way that improves
speed and full capacity. All data on all disks will be lost if any single disk
fails.
-
RAID 1
—Uses two disks (mirrored disks) each of which store the same
data, so that data is not lost as long as one disk survives. Total capacity of
the array equals the capacity of the smaller disk.
-
RAID 5
—Combines three or more disks in a way that protects data
against loss of any single disk. RAID 5 is applicable to NSS 324 and
NSS 326.
-
RAID 6
—Combines four or more disks in a way that protects data against
loss of any two disks. RAID 6 is applicable to NSS 324 and NSS 326.
•
File system:
-
EXT4
—EXT4 is the successor to EXT3 and provides better performance
because the EXT4 file system can support very large volumes (default).
