Chapter 3: Host Connection 45
ATTENTION Possible loss of data access – You must install alternate path software
or an alternate path (failover) dri
ver on the host to support failover in the event of an
HBA, an HCA, or an iSCSI Ethernet adapter failure or a host channel failure.
Table 4 Redundant and Non-Redundant Components in a Direct-Attached
Configuration with One Host and a Controller Tray or a Controller-Drive Tray
Figure 1 Direct-Attach Topology – One Host and a Controller Tray or a
Controller-Drive Tray
Component Redundant Non-Redundant
Host/server Non-redundant
HBA, HCA, or iSCSI
Ethernet adapter
Redundant
Host-to-controller cable Redundant
Controller Redundant
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