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ASUS P5CR-L(S)ASUS P5CR-L(S)

ASUS P5CR-L(S)

5-15-1

5-1

5.1 RAID configurations

The server system/motherboard comes with the

IntelIntel

Intel

®®

ICH6R ICH6R

ICH6R

Southbridge chip that supports up to four Serial ATA hard disk drives with

RAID 0, RAID 1, or Intel

Matrix Storage configuration.

Refer to the RAID definitions below.

5.1.15.1.1

5.1.1

RAID definitionsRAID definitions

RAID definitions

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 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.

JBODJBOD

JBOD

(Spanning)

stands for

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

Intel

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

only 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

created RAID set, copy first the RAID driver from the support CD to a

floppy disk before you install an operating system to the selected hard

disk drive. Refer to section “2. RAID driver installation” for details.