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ASUS NCL-DE SeriesASUS NCL-DE Series

ASUS NCL-DE Series

5-15-1

5-1

5.1 Setting up RAID

The motherboard comes with the following RAID solutions:

NCL-DE/1UNCL-DE/1U

NCL-DE/1U

•

LSI Logic Embedded SATA RAID LSI Logic Embedded SATA RAID

LSI Logic Embedded SATA RAID technology embedded in the

Intel

ICH5R Southbridge supports up to two SATA hard disk drives and

RAID 0, RAID 1, and RAID 0+1 configurations.

NCL-DE/SCSI modelNCL-DE/SCSI model

NCL-DE/SCSI model

•

LSI Logic Embedded SATA RAIDLSI Logic Embedded SATA RAID

LSI Logic Embedded SATA RAID

•

AdaptecAdaptec

Adaptec

®®

AIC-7902W SCSI RAID AIC-7902W SCSI RAID

AIC-7902W SCSI RAID controller supports SCSI hard disk

drives and RAID 0, RAID 1, and RAID 0+1 configurations.

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.

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

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 Chapter 6 for details.