Asus pike 2108-32pd [31/84] Using manual configuration raid 5

ASUS PIKE 2108 2-17

• Drive Cache: Specify the drive cache policy:

◊ NoChange: Leave the current drive cache policy unchanged. This is

the default.

◊ Enable: Enable the drive cache.

◊ Disable: Disable the drive cache.

• Disable BGI: Specify the background initialization status:

◊ No: Leave background initialization enabled. This means that a new

conguration can be initialized in the background while you use

WebBIOS to do other conguration tasks. This is the default.

◊ Yes: Select Yes if you do not want to allow background initializations

for congurations on this controller.

• Select Size: Specify the size of the virtual drive in terabytes, gigabytes,

megabytes, or kilobytes. Normally, this would be the full size for RAID 10

shown in the Conguration panel on the right. You may specify a smaller

size if you want to create other virtual drives on the same drive group.

16. Click Accept to accept the changes to the virtual drive denition, or click

Reclaim to to undo the changes.

17. Click Yes to conrm the write policy mode you have chosen.

18. When you are nished dening virtual drives, click Next. The conguration

preview screen appears.

19. Check the information in the conguration preview.

20. If the virtual drive conguration is acceptable, click Accept to save the

conguration. Otherwise, click Cancel to end the operation and return to the

WebBIOS main menu, or click Back to return to the previous screens and

change the conguration.

21. If you accept the conguration, click Yes at the prompt to save the

conguration.

22. Click Yes at the prompt to start initialization.

Using Manual Conguration: RAID 5

RAID 5 uses drive striping at the block level and parity. In RAID 5, the parity

information is written to all drives. It is best suited for networks that perform a

lot of small input/output (I/O) transactions simultaneously. RAID 5 provides data

redundancy, high read rates, and good performance in most environments. It also

provides redundancy with lowest loss of capacity.

RAID 5 provides high data throughput. RAID 5 is useful for transaction processing

applications because each drive can read and write independently. If a drive fails,

the RAID controller uses the parity drive to recreate all missing information. You

can use RAID 5 for ofce automation and online customer service that require

fault tolerance. In addition, RAID 5 is good for any application that has high read

request rates but low write request rates.