Storage Expansion Enclosure Cabling Diagrams - IBM TotalStorage DS4300 Installation, User's, And Maintenance Manual

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intermix of these enclosures. One shows the EXP100s cabled between the
EXP810s and EXP710s, while the other shows the EXP810s and EXP710s
intermingled, not with the EXP810s grouped separately from the EXP710s as
recommended.
v Figure 41 on page 58 is an example of correctly cabling a 14 drive expansion
enclosures to the DS4300. The Controller A drive port should be connected to
the IN port in the left ESM of the last expansion enclosure when cabling as
shown in Figure 41 on page 58. The Controller B drive port should be connected
to the OUT port in the right ESM of the first expansion enclosure when cabling
as shown in Figure 42 on page 59. Refer to Figure 45 on page 62 for the port
labeling.
v The DS4300 expansion (or drive) port must always be connected to the EXP810
port 1B, regardless of whether the port is on the EXP810 ESM A or ESM B. See
Figure 42 on page 59 is an example of correctly cabling the EXP810 ESM ports,
labeled 1B, to the DS4300 expansion port. Figure 43 on page 60 is an example
of incorrect cabling showing the connection from the DS4300 expansion port to
the incorrect EXP810 ESM port, labeled 1A. Refer to Figure 51 on page 67 for
the port labeling.

Storage expansion enclosure cabling diagrams

These diagrams help show the information that is listed in "General rules and
recommendations for cabling storage expansion enclosures" on page 51.
Chapter 3. Cabling the storage subsystem
53