Fujitsu Eternus2000 Manual page 33

Table 1.3 show the recommended number of disk drives that configures a RAID group.
Table 1.3
RAID level
RAID1
RAID1+0
RAID5
RAID6
Note:
• Adding more disk drives to a RAID group improves performance.
• Use of higher capacity disk drives in a RAID group will increase the time required for
• Similarly, the more disk drives per RAID5 or RAID6 group, the longer the drive rebuild
Volume
Logical disk drive areas in RAID groups are called volumes.
A volume is the basic RAID unit, that can be recognized by the server.
Figure 1.7
• Table 1.4
Table 1.4
model 100
model 200
P3AM-2512-03EN ETERNUS2000 disk storage system User Guide
Recommended number of disk drives per RAID group
Recommended number of disk drives
2
4, 6, 8, 10
3, 4, 5, 6
5, 6, 7
the drive rebuild process to complete.
process will take following a disk drive failure.
Volume 1
Volume 2
RAID Group 1
RAID group concept
shows the maximum number of volumes that can be set.
The maximum number of volumes that can be set
Model
Max. 128
Max. 128
Copyright 2009 FUJITSU LIMITED
Per RAID group
Max. 512
Max. 1,024
Chapter 1 Overview
Volume 3
RAID Group 2
Per storage system
1
9