e. On the last storage expansion enclosure in the group, connect the Out port
on the right ESM board to drive port 1 (drive channel 3) of controller B of
the DS4800. (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:
Perform the following steps to cable EXP810 storage expansion enclosures to
each other and to the DS4800. You can match the connections described in
these steps with the cabling diagram (provided in “DS4800 Storage Subsystem
Figure 44. Connecting EXP710 or EXP100 enclosures to DS4800
64 IBM System Storage DS4800 Storage Subsystem: Installation, User’s, and Maintenance Guide