![background image](http://html2.mh-extra.com/html/ibm/system-storage-ds4000/system-storage-ds4000_hardware-maintenance-manual_3312302055.webp)
Simple Fully Redundant
Redundant
Servers
,
FC host adapter
FC host adapter
FC host adapter
FC host adapter
3526
RAID Controller Unit
EXP10, 15 or 200
(up to 6 units)
Hub/switch
Ctrl
B
Ctrl
A
Hub/switch
Note 1: Since disks are seen from multiple places some form of protection such as MSCS, storage partitioning, Sanergy,
Oracle etc must be used.
Note 2: For best performance and managibility, a managed hub switch is preferred.
Note 3: Always try to keep connections to hub on adjacent ports and unplug all unused GBICs
Figure
14.
Type
3526
fibre
channel
RAID
controller
simple
fully
redundant
Cluster/Non-Cluster Share
Managed Hub/Switch
Managed Hub/Switch
Clus1
Notes 1
File 1
DB 1
Clus1
LD1
Notes 1 File 1
DB 1
Partitions 1 - 4
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
FC host adapter
1
2
3
4
Note : Factors such as performance and number of storage partitions
influence the number and type of nodes.
LD2
3526
RAID Controller Unit
Ctrl
A
EXP10, 15 or 200
(up to 6 units)
Ctrl
B
Figure
15.
Type
3526
fibre
channel
RAID
controller
cluster/non-cluster
share
Chapter
6.
Type
3526
Fibre
Channel
RAID
Controller
27
Summary of Contents for System Storage DS4000
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