For examples of redundant, partially redundant, and non-redundant host and drive
channel configurations, see “Fibre channel host loop configurations” on page 115.
Connecting hosts to the DS5100 and DS5300 iSCSI ports
The DS5100 and DS5300 supports redundant connections to the host with iSCSI
HBAs or iSCSI software initiators. To ensure full protection against the loss of any
path from the host servers, always use redundant host connections by connecting
each host to the appropriate Ethernet switches with connections to both RAID
controllers A and B iSCSI host ports. To connect an iSCSI host adapter to the
DS5100 and DS5300 RAID controllers, complete the following steps:
1. Connect the Category 6 Ethernet cables from the RAID controller iSCSI host
ports to the Ethernet switch.
2. Connect the Category 6 Ethernet cables from the iSCSI host bus adapter ports
or the Ethernet ports of the server using an iSCSI software initiator to the same
Ethernet switch or one that is in the same Ethernet network as the RAID
controller iSCSI host ports.
ds50057
43
2
1
43
2
1
1
34
212
34
Figure 72. Cabling diagram for eight redundant host connections
110 IBM System Storage DS5100 and DS5300 Storage Subsystem: Installation, User’s, and Maintenance Guide
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