3.2RAID 0
RAID 0 provides disk striping across all drives in the RAID subsystem. RAID 0 does not provide any data redundancy, but does offer the best performance of any RAID level. RAID 0 breaks up data into smaller blocks and then writes a block to each drive in the array. The size of each block is determined by the stripe size parameter, set during the creation of the RAID set. RAID 0 offers high bandwidth. By breaking up a large file into smaller blocks, MegaRAID SCSI
Uses | RAID 0 provides high data throughput, especially for large |
| files. Suitable for any environment that does not require |
| fault tolerance. |
|
|
Strong Points | Provides increased data throughput for large files. No |
| capacity loss penalty for parity. |
|
|
Weak Points | Does not provide fault tolerance. All data lost if any drive |
| fails. |
|
|
Drives | 1 to 30 |
| The MegaRAID SCSI |
| SCSI channels, with up to 15 SCSI devices on each |
| channel. |
|
|
Figure 3.1 shows a RAID 0 array with four disk drives.
Copyright © 2002 by LSI Logic Corporation. All rights reserved.