User's Manual

1-5
Introduction
Improved I/O performance is the major reason for using RAID level 0.
No protection is provided against data loss due to member disk
failures. A RAID level 0 array by itself is thus an unsuitable storage
medium for data that can not easily be reproduced, or for data that
must be available for critical system operation. It is more suitable for
data that can be reproduced or is replicated on other media.
A RAID level 0 array can be particularly useful for :
Storing program image libraries or runtime libraries for rapid
loading, these libraries are normally read only.
Storing large tables or other structures of read only data for rapid
application access. Like program images, the data should be
backed up on highly reliable media, from which it can be
recreated in the event of a failure.
Collecting data from external sources at very high data transfer
rates.
RAID Level 0 : " Disk Striping " High I/O Performance
RAID Levels
Disk 1
Physical
1
5
Data
1
2
3
4
5
6
7
8
9
10
11
12
Disk Array Controller
Array Management Software
Provides Logical to Physical Mapping
4
8
3
7
2
6
Disk 2 Disk 3 Disk 4