Chapter 1: Cabling Concepts and Best Practices 19
Table 2 Drive Tray Connection Combinations for the CE7922, CE7900, CE6998,
and CE6994 Controller Trays
DE6900 Drive
Tray
FC4600FC4600
Drive Tray
AT2655 Drive
Tray
FC2610 Drive
Tray
FC2600 Drive
TrayDrive Tray
CE7922
Controller Tray
Up to two
per loop
pair; eight
per
controller
tray
Mixing
drive tray
types is not
supported
Up to seven per
loop pair; 28 per
controller tray
Not supported Not supported Not supported
CE7900
Controller Tray
Up to two DE6900 drive trays
per loop pair; eight per
controller tray
Up to seven FC4600 drive
trays per loop pair; 28 per
controller tray
When mixing FC4600 and
DE6900 drive trays on the
same loop, only one DE6900
drive tray and up to three
FC4600 drive trays can share
a loop.
Not supported Not supported Not supported
CE6998
Controller Tray
Not supported
Up to seven FC4600 drive trays per channel; up to 14 per
controller tray
Up to eight AT2655, FC2610, or FC2600 drive trays per channel;
up to 16 per controller tray
When a channel has a mixture of AT2655, FC2610, or FC2600
drive trays, up to seven drive trays per channel; up to 14 drive
trays per controller tray storage array
When a controller tray has a mixture of AT2655, FC2610, or
FC2600 drive trays but each channel has only one type of drive
tray, up to seven drive trays for each channel with FC4600 drive
trays, up to eight drive trays for each channel with other drive tray
types
CE6994
Controller Tray
Not supported
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