Eurocom P180HM Leopard 2.0 - Manual (Page 137)

Modules
Setting Up SATA RAID or AHCI Mode 7 - 3
7
RAID Level Description
RAID 0
Two Identical drives reading and writing data in parallel to increase performance.
RAID 0 implements a striped disk array and the data is broken into blocks and each
block is written to a separate disk drive.
RAID 1
Two 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 5
Identical drives (at least three drives must be used) in a parity across disks
configuration are used to protect data and increase performance. A RAID 5 array
can withstand a single disk failure without losing access to data.
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.
Table 7 - 1
RAID Levels

Array Types
A Mirrored Array
(RAID 1) provides full
data protection, as
data can simply be
copied from a healthy
disk to a replacement
for any failed disk.
A Striped Array
(RAID 0) is NOT fault-
tolerant. The failure of
one drive will result in
the loss of all data in
the array. It is de-
signed to increase disk
performance by
spreading the I/O load
across the channels
and drives.