IBM DCS3860, Installation, User'S, And Maintenance Manual

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Enclosure ID Settings
The enclosure ID is a unique two-digit identifier for each enclosure in the storage
system configuration. In a dual controller or ESM configuration, both enclosure IDs
are identical under normal operating conditions. Each DCS3860 storage system and
EXP3800 expansion enclosure in the storage system configuration must have a
unique storage enclosure ID.
The controller automatically sets the enclosure ID. You can change the setting
through the DS Storage Manager software, if necessary. The range of supported
enclosure ID settings is 0 through 99. The enclosure ID is normally set to a value of
00 at the factory.
The enclosure ID is displayed on the seven-segment numeric display located on
the back of each controller and ESM.
Working with SAS cables
Use a 1M or 3M (1-meter or 3-meter) SAS cable with a mini-SAS 4x multilane SAS
connector at each end. Use this cable to connect a controller host port to a host
HBA and the drive expansion port to a storage enclosure.
The following illustration shows the 1M and 3M mini-SAS cable.
The 1M and 3M SAS cables have a universal key connector that enables the cable
to be used in all mini-SAS ports.
Mini-SAS
connectors
Figure 17. Mini-SAS cable
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IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide