Seagate ST320005SHA10G-RK - BlackArmor NAS 420 Server User Manual page 31

This table explains the different levels of RAID supported by your BlackArmor server.
Table 1: Supported RAID Levels for Volumes
RAID Level of Volume
RAID 0
(Also known as striping)
RAID 1
(Also known as mirroring)
RAID 5
RAID 10
Span
(Also known as a JBOD
a.'Just a Bunch of Disks'.
Seagate recommends that only users familiar and comfortable with RAID technology make
changes to the server's RAID protection.
Creating New Volumes
As a BlackArmor administrator, you can create all the shares you want in the default volume,
or you can create more volumes using BlackArmor Manager. When you create a volume, you
can specify:
• The size of the volume
• The disk drive(s) you want to use
• The level of RAID protection it should have (see page 31)
You can use the same disk drives in multiple volumes providing there is available space on
those drives. For instance, you could use half the space on disk drives 1, 2, and 3 to create
Volume A, and the other half of the space on the same disk drives to create Volume B.
To create a new volume, open BlackArmor Manager (see page 17). Volumes are in the
Storage menu. For more information on volumes, including deleting and modifying volumes,
see the online Help.
BlackArmor® NAS 440/420 User Guide (Version 3)
Number of
Disk Drives Description
Required
2 – 4 A volume where data is distributed evenly
(striped) across the disk drives in equal-sized
sections. A striped volume does not maintain
redundant data, and so offers no data protection.
2 A volume where one disk drive is a mirror of the
other (the same data is stored on each disk
drive). Provides data protection.
3 – 4 A volume with RAID 5 uses data striping and par-
ity data to provide redundancy. (Parity is extra
information that's used to re-create data if a disk
drive fails. In volumes with RAID 5, parity data is
striped evenly across the disk drives with the
stored data.)
4 A volume with RAID 10 is built from two or more
equal-sized RAID 0 volumes. Data in a volume
with RAID 10 is both striped and mirrored.
1 – 4 A group of disk drives in a server, not protected
by RAID.
a
)
Managing BlackArmor Volumes, Shares and Storage
32