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Drive Cabling
Topologies for
the CDE3994
Controller-Drive
Tray and the
CDE3992
Controller-Drive
Tray
This section provides examples of drive cabling topologies that can be used for the
CDE3994 controller-drive tray. The controllers on the lower-cost CDE3992
controller-drive tray have two host ports and two drive ports. The controllers on the
higher-cost CDE3994 controller-drive tray have four host ports and two drive ports.
Each example provides redundant paths to the drives. If one of these examples is
suitable for your hardware and application, complete the cable connections as
described by the tables. However you decide to implement your connection, follow
the recommendations in "Best Practices" on page 13 to make sure that data has full
availability.
One CDE3994
Controller-Drive
Tray or CDE3992
Controller-Drive
Tray and One Drive
Tray
If you are connecting one CDE3994 controller-drive tray to one drive tray, and that
drive tray has inverted ESM canisters, use the cabling topology described in the
following table and figure.
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