Connecting Exp710 Or Exp100 Enclosures To Ds4800 - IBM DS4800 User, Installation And Maintenance Manual

Figure 44. Connecting EXP710 or EXP100 enclosures to DS4800
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IBM System Storage DS4800 Storage Subsystem: Installation, User's, and Maintenance Guide
d. Connect drive port 4 (drive channel 1) of controller A to the In port on the
left ESM board of the first storage expansion enclosure in the group. (See
callout 1 in Figure 44.)
e. Connect drive port 1 (drive channel 3) of controller B to the Out port on the
right ESM board of the last storage expansion enclosure in the group. (See
callout 5 in Figure 44.)
You have now completed the redundant fibre channel cabling of the first group
of storage expansion enclosures to the DS4800, using the first ports of the
dual-ported drive channels 1 and 3.
For EXP810 storage expansion enclosure connections: