User`s guide

Chapter 6. Configuring Your Array
EK–SWRA2–IG. C01 6–19
6.4.2.2 Sample Configuration for Drive Connectivity and
Performance
The configuration shown by this example provides drive connectivity and
performance in the event that you want to configure the total possible number of
drives, 21, and maximize their usable capacity. You can not achieve high
availability with this configuration, because, in order to maximize usable
capacity, and performance, you can not utilize redundancy.
In the configuration example shown in Table 6–2, we configured twenty-one, 1
GB capacity disk drives into 7 drive groups, on which we created 7 RAID 0
Logical RAID drives. For more information on the number of drives used in each
group, and usable capacity, see Section 6.6.1 of this Chapter. For more
information on the group type, See Chapter 1.
Table 6–2 Drive Connectivity and Performance Through RAID 0
Drive
Group
Number
of Drives
in Group Drive Location
Group
Type
Usable
Capacity
of Group
A 3 Drive 1 = Ch 0, SCSI ID 0 RAID 0 3GB
Drive 2 = Ch 1, SCSI ID 0
Drive 3 = Ch 2, SCSI ID 0
B 3 Drive 1 = Ch 0, SCSI ID 1 RAID 0 3GB
Drive 2 = Ch 1, SCSI ID 1
Drive 3 = Ch 2, SCSI ID 1
G 3 Drive 1 = Ch 0, SCSI ID 6 RAID 0 3GB
Drive 2 = Ch 1, SCSI ID 6
Drive 3 = Ch 2, SCSI ID 6
Total Total Total Total
7 21 drives 7 RAID 0 21 GB