IBM Partner Pavilion DS4100 manual Connecting secondary interface cables

Controller A Controller B

Host A: Host Adapter 1	Host A: Host Adapter 2
(or from managed hub	(or from managed hub
or switch)	or switch)

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Figure 50. Location of host cables (base storage server)

For examples of redundant, partially-redundant, and non-redundant host and drive loop configurations, see “Fibre channel loop configurations” on page 36.

Connecting hosts to a DS4100 single-controller storage server

To connect a host adapter to the DS4100 single-controller storage server RAID controllers, perform the following steps:

1.Install an SFP in a host port on the RAID controller.

2.Connect the host-system cables to the RAID controller or to switches. Figure 51 shows the location on the RAID controllers where the host-system cables connect.

Ethernet Serial port

Host port 2

Host port 1

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AC power	AC power	Server ID
connector	switch	switch

Figure 51. Location of host cables (single-controller storage server)

Connecting secondary interface cables

Use the Ethernet interface ports on the back of the storage server to connect the controllers for direct management of the storage subsystems (see “Direct (out-of-band) management method” on page 35).

This section is applicable to (direct) out-of-band management configurations only. If your configuration uses host-agent (in-band) management, skip this section.

56IBM TotalStorage DS4100 Storage Server: Installation, User’s, and Maintenance Guide