3. Repeat steps 1 on page 64 and 2 on page 64 for an additional redundant host
connection. In a direct connection configuration, you can create a maximum of
two redundant host connections for the storage subsystem.
See “Direct-attached single-controller connections” and “Direct-attached
dual-controller connections” on page 67 for illustrations of host connections.
For examples of redundant, partially-redundant, and non-redundant host and drive
loop configurations, see “Fibre Channel host loop configurations” on page 68.
Direct-attached single-controller connections:
The following illustration shows a direct-attached connection to a single host HBA.
Serial port
Ethernet ports
SAS host port 1
SAS host port 2
Fibre channel host port 3
Controller A
Fibre channel host port 4
Fibre channel host port 5
Fibre channel host port 6
Seven-segment
numeric display
Controller B
dg1fy065
Password Reset
Password Reset
Drive expansion port
Figure 55. Location of host connectors on storage controllers
Host system
with single host
adapter
DS3500
Figure 56. Single-controller direct-attached Fibre Channel connection to a single host HBA
Chapter 3. Cabling the storage subsystem and storage enclosure 65
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