The illustration Figure 54 shows the connections from the host server to the
dual-controller DS3500 using two SAS switches that are connected together via an
inter-switch link.
Connecting Fibre Channel hosts to the DS3500
Using Fibre Channel switches, up to 64 hosts can be redundantly attached to the
DS3500 storage subsystem in a Fibre Channel storage area network (SAN) fabric.
Note: The DS3500 ships with four storage partitions by default. For additional
storage partitions, purchase an optional Storage Partition Premium Feature
upgrade. Contact your IBM reseller or marketing representative for more
information.
To connect a host to the controllers, complete the following steps:
1. Install SFP modules in the host ports on controllers A and B.
2. Connect the Fibre Channel cables to the SFP modules in the controller host
ports and to either the SFP modules in the Fibre Channel switch or the optical
interface connector on the host bus adapters. Figure 55 on page 65 shows the
location on the controllers of the storage subsystem ports where the
host-system cables connect.
DS3500
with Dual-
controller
SAS switch SAS switch
Host system
with two SAS
host adapter
Host system
with two SAS
host adapter
Inter-
switch
Link
e35i0014
DS3500
with Dual-
controller
Figure 54. Dual-controller DS3500 SAS connection to multiple hosts using two SAS switches
that are connected together via an interlink switch
64 IBM System Storage DS3500 and EXP3500 Storage Subsystem: Installation, User's, and Maintenance Guide
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