
FC
Switches
Multi-MSCS extended
Notes:
- Each group of 4 ports on the switches (
) can support one cluster element (black dash box)
- Storage partitioning is used to separate clusters
- 16 port switches allow more clusters but this has to be within performance needs and available partitions
red dash box
FC host adapter
FC host adapter
FC host adapter
FC host adapter
...
Host side
Drive side
Mini-hub
Mini-hub
Mini-hub
Mini-hub
Mini-hub
Mini-hub
Mini-hub
Mini-hub
EXP500
Loop 1
Loop 1
Loop 2
Loop 2
IN
IN
IN OUT
IN
OUT
OUT
OUT
Ctrl
B
Ctrl
A
FAStT500 RAID Controller Unit
Figure
38.
FAStT500
RAID
controller
multi-MSCS
extended
Cornhusker configuration
...
Host side
Drive side
Mini-hub
Mini-hub
Mini-hub
Mini-hub
Mini-hub
Mini-hub
Mini-hub
Mini-hub
EXP500
Loop 1
Loop 1
Loop 2
Loop 2
IN
IN
IN OUT
IN
OUT
OUT
OUT
Ctrl
B
Ctrl
A
FAStT500 RAID Controller Unit
Managed hub 1
Managed hub 2
ID 0
ID 0
ID 1
ID 2
ID 3
ID 4
ID 4
ID 3
ID 2
ID 1
Notes: Running Cornhusker Software
4 to 8 node configs are supported
Managed hubs can be combined with optional mini-hubs or
use 16 ports switches without the optional mini-hubs
Performance would be best with external 16 port switches
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
ID 0
ID 0
ID 1
ID 1
ID 2
ID 2
ID 3
ID 3
ID 4
ID 4
ID 5
ID 5
ID 6
ID 6
ID 7
ID 7
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
FC host adapter
Figure
39.
FAStT500
RAID
controller
cornhusker
configuration
54
IBM
TotalStorage
DS4000:
Hardware
Maintenance
Manual
Summary of Contents for System Storage DS4000
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