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

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one DCS3860 fully loaded is 102.27 kg (255 lbs). The load per EIA unit that a
standard EIA rack enclosure must be able to support is 25.49 kg (56.2 lbs) per
unit.
3.
AC or dc power drawers need to be support based on equipment purchased
for the rack or cabinet. It is strongly recommended that you use a power
distribution unit that meets the same specifications as each unit already
installed in the rack. Each power distribution unit needs a dedicated power
line. Rack or cabinet power distribution device(s) must meet the drawer power
requirements, as well as that of any additional products that will be connected
to the same power distribution device.
The rack or cabinet power receptacle (power distribution unit, uninterruptible
power supply, or multi-outlet strip) must have a compatible plug type for your
drawer or device. The customer is responsible for ensuring the power
distribution unit is compatible with the rack or cabinet and assumes
responsibility for any and all agency certifications required.
4. The rack or cabinet must be compatible with drawer mounting rails, including
a secure and snug fit of the rail-mounting pins and screws into the rack or
cabinet rail mounting holes. You must use the IBM mounting rails that are
shipped with the IBM product to install it in the rack. The mounting rails that
ship with IBM products have been designed and tested to safely support the
product during operation and service activities as well as to safely support the
weight of your drawer or device. The rails must facilitate service access by
allowing the drawer to be safely extended, if necessary, forwards, backwards,
or both.
Note: If the rack or cabinet has square holes on the mounting flanges,
additional hardware may be required.
5. The rack or cabinet must have stabilization feet or brackets installed both in the
front and rear of the rack, or have another means of preventing the
rack/cabinet from tipping while the drawer or device is pulled into its extreme
front or rear service positions.
Examples of some acceptable alternatives: The rack or cabinet may be securely
bolted to the floor, ceiling or walls, or to adjacent racks or cabinets in a long
and heavy row of racks or cabinets.
6. There must be adequate front and rear service clearances (in and around the
rack or cabinet).
The rack or cabinet must have sufficient horizontal width clearance in the front
and rear to allow the drawer to be fully slid into the front and, if applicable,
the rear service access positions (typically this requires 914.4 mm (36 in.)
clearance in both the front and rear).
If present, front and rear doors must be able to open far enough to provide
unrestrained access for service or be easily removable. If doors must be
removed for service, it is the customer's responsibility to remove them prior to
service.
7. The rack or cabinet must provide adequate clearance around the rack drawer.
There must be adequate clearance around the drawer bezel so that it can be
opened and closed, according to the product specifications.
Front or rear doors must also maintain a minimum of 51 mm (2 in.) front, 203
mm (8 in.) rear, door to mounting flange clearance, and 494 mm (19.4 in.) front,
571 mm (22.5 in.) rear, side-to-side clearance for drawer bezels and cables (see
Figure 72 on page 152).
8. The rack or cabinet must provide adequate front-to-back ventilation.
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IBM System Storage DCS3860 Storage System: Installation, User's, and Maintenance Guide