ASUS PIKE 2308 用户手册

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Chapter 2: RAID configuration

The RAID card supports RAID 0, RAID 1, RAID 1E, and RAID 10.

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 at least two new identical hard disk drives is required for this setup.
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 1E 

(Enhanced RAID 1)

 has a striped layout with each stripe unit having a secondary (or 

alternate) copy stored on a different disk. You can use three or more hard disk drives for this 

configuration.
RAID 10 is a striped configuration with RAID 1 segments whose segments are RAID 1 arrays. 

This configuration has the same fault tolerance as RAID 1, and has the same overhead for 

fault-tolerance as mirroring alone. RAID 10 achieves high input/output rates by striping RAID 

1 segments. In some instances, a RAID 10 configuration can sustain multiple simultaneous 

drive failure. A minimum of four hard disk drives is required for this setup.

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. 

The RAID card supports SAS for RAID set configuration. For optimal performance, install 

identical drives of the same model and capacity when creating a disk array.
To install the SAS hard disks for RAID configuration:
1. 

Install the SAS hard disks into the drive bays following the instructions in the system 

user guide.

2. 

Connect a SAS signal cable to the signal connector at the back of each drive and to the 

SAS connector on the motherboard.

3. 

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