RAID Setup
You may use your hard disks in combination with Strip-
ing (RAID 0), Mirroring (RAID 1), Parity Across Disks
(RAID 5) or Recovery for either fault tolerance or perfor-
mance.
Prepare the following before setting up your serial ATA
hard disks in RAID mode:
• The Microsoft Windows OS disc.
• 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 & Utilities + User's Manual disc.
Table 1 - RAID Description
RAID Level
Two identical drives copying data between a
Recovery
master and a recovery disk. This provides more
control over how data is copied between the
(at lease two
master and recovery drives, fast volume
hard disks
updates and the ability to view the data in Win-
needed)
dows Explorer.
.
Description
RAID Level
Identical drives reading and writing data in paral-
lel to increase performance. RAID 0 imple-
RAID 0
ments a striped disk array and the data is broken
into blocks and each block is written to a sepa-
(at lease two
rate disk drive.
hard disks
RAID 0 (a striped array) is not fault-tolerant. The
needed)
failure of one drive will result in the loss of all
data in the array.
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
RAID 1
contains identical data) will handle all the data.
When a new replacement drive is installed, data
(at lease two
to the new drive is rebuilt from the mirrored drive
hard disks
to restore fault tolerance.
needed)
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
Identical drives (at least three drives must be
used) in a parity across disks configuration are
(three hard
used to protect data and increase perfor-
disks
mance. A RAID 5 array can withstand a single
needed)
disk failure without losing access to data.
Concise User's Guide
Description
RAID Setup - 5