IBM DS3500, Installation, User'S, And Maintenance Manual

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Direct-attached dual-controller connections:
The following illustration shows a direct-attached SAS connection from each controller to a single HBA in
the same host (redundant host connection).
The following illustration shows multiple redundant direct-attached SAS host connections. This
configuration is also the configuration to use for a dual-node cluster configuration.
Host system
with single host
adapter
DS3500
Host system
with single host
adapter
Figure 3-33. Single-controller direct-attached SAS connection to single HBAs in multiple hosts
Host system
with dual host
adapters
DS3500
dg1fy403
Figure 3-34. Dual-controller direct-attached SAS connection to two HBAs in the same host (redundant host connection)
Chapter 3. Cabling the storage subsystem and storage enclosure
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