System Drive Mapping; Primary And Secondary Ids - Compaq External RAID Controller & Subsystem Infortrend Operation Manual

10-6
Figure 10 - 3 Grouping Hard Drives
Drive Channel 0
4
GB GB
ID 5
Drive Channel 1
4
GB
ID 6
RAID 5
8GB
Logical Drive 0
!
As diagrammed above, choosing the members of an array can be
flexible. You may divide a logical drive or logical volume into
several partitions as diagrammed below, or use the entire logical
drive as a single partition, with or without the support of one or
several spare drives.
Figure 10 - 4 Partitioning of Logical Units
RAID 5
8GB
Logical Drive 0
RAID 0
6GB
Logical Drive 1
!
Each logical unit can be associated (mapped) with a host ID
(Primary or Secondary ID) or the LUN numbers under host IDs.

System Drive Mapping:

Primary and Secondary IDs

!
Host Channel:
Keep in mind that when controllers are successfully combined,
host port IDs are available as "Primary" or "Secondary" IDs.
4 2 2
GB GB
ID 3 ID 2
ID 0
4 2
GB GB
ID 1 ID 0
Global
Spare
Drive
RAID 0
6GB
Logical Drive 1
Partition 0 - 2GB
Partition 1 - 1GB
Partition 2 - 5GB
Partition 0
2.5GB
Partition 1
1.5GB
2
GB
ID 14
Local Spare
Drive of LD1
Infortrend