Installing the DDMs
Important:
The installation order within each drawer is from left to right in each row if you are facing
the front of the DCS3700 storage subsystem or DCS3700 with Performance Module
Controllers. You must install DDMs in slots 1, 4, 7, and 10. Ensure that the four DDMs in
each row are adjacent to each other. The long edge of each DDM should touch the DDM next
to it. To maintain a uniform airflow across all drawers, the storage enclosure must be
configured with a minimum of four DDMs in the front row of each drive drawer.
Drive
drawer
Drives
Notes:
1.
The drive drawers are preinstalled in the DCS3700 storage subsystem and DCS3700 storage subsystem
with Performance Module Controllers, but the DDMs are shipped separately from the drive drawers.
2.
Ensure that you install the storage enclosure in the rack cabinet before you install DDMs in the
storage enclosure.
Drive
drawer
s
1
2
3
4
5
dc
s
q
000
4
To install the DDMs in the drive drawers, complete the following steps:
1.
Open the two release levers on the drawer as shown in the illustration. Starting with the top drive
drawer in the storage enclosure, pull the levers on each side of the drawer out and cam away from
the chassis to release the drawer.
Drive drawer lever
s
dc
s
q
0005
2.
With the release levers fully extended, slide the drawer out until it is fully extended, but do not
remove it from the enclosure.
3.
Starting with the first DDM, raise the DDM handle to the vertical position.
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