Chapter 4: Drive Connection 105
Drive Cabling
Topologies for
the E5400
Controller-Drive
Trays
This section provides examples of drive cabling topologies for the E5400
controller-drive trays. The E5400 controller-drive tray models are: E5412, E5424,
and the E5460.
The E5400 controller-drive trays can be connected to DE1600 drive trays, DE5600
drive trays, DE6600 drive trays, or combinations of these three types of drive trays
DE5600 drive trays, DE6600 drive trays, or combinations of these two types of drive
trays. For configurations of the E5400 controller-drive tray with InfiniBand host
connections, the total number of drives in the storage array, including the drives in the
controller-drive tray and those in all of the attached drive trays, must not exceed 240.
For all other configurations of the E5400 controller-drive tray, the total number of
drives in the storage array, including the drives in the controller-drive tray and those
in all of the attached drive trays, must not exceed 384. For all configurations of the
E5400, the total number of trays in the storage array, including the controller-drive
tray and all of the attached drive trays, must not exceed 16.
Drive Cabling
Topologies for the
E5424
Controller-Drive
Tray and the E5412
Controller-Drive
Tray
The figures in this section show representative cabling configurations. The
configurations shown guarantee that redundant data paths exist between the
controller-drive tray and all attached drive trays in a storage array. The E5424
controller-drive tray and the E5412 controller-drive tray can be connected to DE1600
drive trays, DE5600 drive trays, DE6600 drive trays, or various combinations of
those three models of drive tray.
For any one controller-drive tray, you must not exceed the limit of 15 connected drive
trays or the limit for the total number of drives in the storage array. The drive limit for
a controller-drive tray with InfiniBand host connections 240 drives. For all other
configurations, the limit is 384 drives. The drive limits includes drives installed in the
controller-drive tray.
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