Manual

Accusys Acuta User’s Manual

RAID 0

RAID 0 links each drive in the array as one huge drive. Storage capacity is determined by the

smallest drive in the array. That capacity is then applied to format all other drives in the array.

If using a 40 GB, 50GB, 60 GB, and 70 GB drive in a RAID 0 array, your system will see one

huge drive of 160 GB (40 GB×4).

RAID 0 offers double or more performance under sustained data transfers when one drive per

ATA port is used. In such a configuration, unlike SCSI, ATA drives are always available to the

system. SCSI requires more management of the SCSI bus. But RAID 0 without fault tolerance,

if one of disks in RAID 0 array group fails, the RAID crashed.

RAID 0: Striped disk array without fault tolerance

Characteristics: Recommended use:

 RAID 0 implements a striped disk array, the data

is broken down into blocks and each block is

written to a separate disk drive.

 I/O performance is greatly improved by spreading

the I/O load across many channels and drives.

 Fastest and most efficient array type but offers no

fault-tolerance.

 Storage capacity = (No. of disks) × (capacity of

smallest disk)

 If installed 40 GB, 50 GB, 60 GB and 70 GB,

configured as RAID 0, the RAID capacity will be

160 GB.

 Video production and

editing

 Image editing

 Pre-press

applications

 Any application

requiring high

bandwidth

The diagram below represents the writing of data on a RAID 0 array composed of four DISKS

connected to the controller. Data blocks are distributed across all disks in the array.

Arrangement of data blocks saved on a Level 0 RAID