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5.5 RAID configurations
The motherboard comes with the Silicon Image Sil3114, ITE 8212, and the
Intel
®
ICH6R Southbride RAID controllers that allow you to configure IDE and
Serial ATA hard disk drives as RAID sets. The motherboard supports the
following RAID configurations.
RAID 0RAID 0
RAID 0RAID 0
RAID 0
(Data striping)
optimizes two identical hard disk drives to read and
write data in parallel, interleaved stacks. Two hard disks perform the same
work as a single drive but at a sustained data transfer rate, double that of
a single disk alone, thus improving data access and storage. Use of two
new identical hard disk drives is required for this setup.
RAID 1RAID 1
RAID 1RAID 1
RAID 1
(Data mirroring)
copies and maintains an identical image of data
from one drive to a second drive. If one drive fails, the disk array
management software directs all applications to the surviving drive as it
contains a complete copy of the data in the other drive. This RAID
configuration provides data protection and increases fault tolerance to the
entire system. Use two new drives or use an existing drive and a new drive
for this setup. The new drive must be of the same size or larger than the
existing drive.
RAID 0+1RAID 0+1
RAID 0+1RAID 0+1
RAID 0+1 is
data striping
and
data mirroring
combined without parity
(redundancy data) having to be calculated and written. With the RAID 0+1
configuration you get all the benefits of both RAID 0 and RAID 1
configurations. Use four new hard disk drives or use an existing drive and
three new drives for this setup.
JBODJBOD
JBODJBOD
JBOD
(Spanning)
stands for
Just a Bunch of DisksJust a Bunch of Disks
Just a Bunch of DisksJust a Bunch of Disks
Just a Bunch of Disks and refers to hard
disk drives that are not yet configured as a RAID set. This configuration
stores the same data redundantly on multiple disks that appear as a single
disk on the operating system. Spanning does not deliver any advantage
over using separate disks independently and does not provide fault
tolerance or other RAID performance benefits.
IntelIntel
IntelIntel
Intel
®®
®®
®
Matrix Storage. Matrix Storage.
Matrix Storage. Matrix Storage.
Matrix Storage. The Intel
®
Matrix Storage technology supported
by the ICH6R chip allows you to create a RAID 0 and a RAID 1 set using
two identical hard disk drives. The Intel
®
Matrix Storage technology creates
two partitions on each hard disk drive to create a virtual RAID 0 and RAID 1
sets. This technology also allows you to change the hard disk drive
partition size without losing any data.
If you want to boot the system from a hard disk drive included in a RAID
set, copy first the RAID driver from the support CD to a floppy disk
before you install an operating system to a selected hard disk drive.
Refer to section “5.6 Creating a RAID driver disk” for details.
For more information on the Intel
®
Matrix Storage technology, visit
http://support.intel.com/support/chipsets/imst/http://support.intel.com/support/chipsets/imst/
http://support.intel.com/support/chipsets/imst/http://support.intel.com/support/chipsets/imst/
http://support.intel.com/support/chipsets/imst/