Concise User’s Guide
RAID Setup -
1-
5
Engl
ish
RAID Setup
You may use your hard disks (if you have included more
than one hard disk in your purchase option) in combina-
tion with Striping (RAID 0), Mirroring (RAID 1), Parity
Across Disks (RAID 5) or Recovery for either fault tol-
erance or performance.
Prepare the following before setting up your serial ATA
hard disks in RAID mode:
• The
Microsoft Windows OS
disc
/USB Key
.
• A
second
hard disk installed in the Primary HDD bay for
RAID level 0 or 1 or Recovery
.
OR
A
second
hard disk installed in the Primary HDD bay, and
a
third
hard disk in the Secondary HDD bay for
RAID
level 5
.
• The
Device Drivers & Uti User’s Manual
disc.
Table 1 - RAID Description
RAID Level
Description
Recovery
Two Identical drives copying data between a
master and a recovery disk. This provides more
control over how data is copied between the master
and recovery drives, fast volume updates and the
ability to view the data in
Windows Explorer
.
RAID 0
(at lease two
hard disks
needed)
Identical drives reading and writing data in paral-
lel to
increase performance
. RAID 0 imple-
ments a striped disk array and the data is broken
into blocks and each block is written to a sepa-
rate disk drive.
RAID 0 (a striped array) is not fault-tolerant. The
failure of one drive will result in the loss of all
data in the array.
RAID 1
(at lease two
hard disks
needed)
Identical drives in a mirrored configuration used
to
protect data
. Should a drive that is part of a
mirrored array fail, the mirrored drive (which
contains identical data) will handle all the data.
When a new replacement drive is installed, data
to the new drive is rebuilt from the mirrored drive
to restore fault tolerance.
RAID 1 (mirrored array) provides full data pro-
tection, as data can simply be copied from a
healthy disk to a replacement for any failed disk.
RAID 5
(three hard
disks
needed)
Identical drives (at least
three
drives must be
used) in a parity across disks configuration are
used to
protect data
and
increase perfor-
mance
. A RAID 5 array can withstand a single
disk failure without losing access to data.
RAID Level
Description
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