![background image](http://html.mh-extra.com/html/ibm/totalstorage-ds5100/totalstorage-ds5100_installation-users-and-maintenance-manual_609021108.webp)
3. The DS5100 and DS5300 controller drive port must always be connected to the
EXP5000 port labeled 1B. Because the left and right EXP5000 ESMs (ESMs A
and B) are inserted in the ESM bays in different orientations, you must look for
the port labeled 1B before making the fibre channel connections. Figure 47
shows the port labels on the EXP5000.
4. The EXP5000 does not support drive-side trunking. Do not make any
connections to port 2A and 2B of the EXP5000 ESM ports.
EXP5060 storage expansion enclosure cabling rules
Refer to these general rules when cabling the storage subsystem to the EXP5060
storage expansion enclosure.
1. Do not connect a combination of more than two EXP5060 storage expansion
enclosures to the two ports of a dual-ported drive channel. Failure to observe
this limitation might result in loss of data availability.
Note:
Maximum configuration requires purchase of an Attached up to eight
EXP5060 feature pack.
2. Do not connect more than two EXP5060 storage expansion enclosures to any
port of a dual-ported drive channel.
3. The DS5100 and DS5300 controller drive port must always be connected to the
EXP5060 ESM port labeled 1B in non-trunking configurations and EXP5060
ESM ports labels 1B and 2B in drive-side trunking configurations. Figure 48
shows the port labels on the EXP5060.
ds50077
1A
1B
1A 1B
Figure 47. EXP5000 port labels
1A
1B
2A
2B
1A
1B
2A
2B
ESM B
ESM A
Figure 48. EXP5060 port labels
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IBM System Storage DS5100 and DS5300 Storage Subsystem: Installation, User’s, and Maintenance Guide