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Chapter 6: Driver installationChapter 6: Driver installation

Chapter 6: Driver installation

6-26-2

6-2

6.1 RAID

The server system/motherboard comes with the

AdaptecAdaptec

Adaptec

®®

HostRAID™ HostRAID™

HostRAID™

technology embedded in the Intel

6300ESB Southbridge to support up to

two SATA hard disk drives and RAID 0, 1, and JBOD configurations.

Refer to the RAID definitions below.

6.1.16.1.1

6.1.1

RAID configurationsRAID configurations

RAID configurations

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.

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.

6.1.26.1.2

6.1.2

Installing hard disk drivesInstalling hard disk drives

Installing hard disk drives

The motherboard supports Serial ATA hard disk drives for RAID set

configuration. For optimal performance, install identical drives of the same

model and capacity when creating a disk array.

To install the SATA hard disks for RAID configuration:

1. Install the SATA hard disks into the drive bays following the

instructions in the system user guide.

2. Connect a SATA signal cable to the signal connector at the back of

each drive and to the SATA connector on the motherboard.

3. Connect a SATA power cable to the power connector on each drive.