7914Cabling2-1908.fm Draft Document for Review March 28, 2011 12:24 pm
118 IBM System Storage DS3500: Introduction and Implementation Guide
Figure 4-28 Single host with redundant iSCSI connections to a single controller DS3500
Figure 4-29 on page 119 shows a configuration with redundant iSCSI connections to a dual
controller DS3500 storage subsystem. In this example, the gigabit ethernet switch represents
a single point of failure. You can achieve additional redundancy of the host side connections
by using two gigabit switches: you connect each iSCSI host bus adapter to a different gigabit
ethernet switch. We show an example of the use of redundant gigabit ethernet switches in
Figure 4-30 on page 120.
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