Raised Or Non-Raised Floor Considerations - IBM FlashSystem A9000R Deployment Manual

4. Determine where to place the rack in the installation site, based on the
5. If the location has a raised floor, prepare the raised floor with cable cutouts and
6. If the location is not a raised floor, resolve any safety concerns that are caused
7. Provide your IBM service representative with the following information before
8. If a rear-door heat exchanger is being ordered, be sure to follow instructions in
9. If absorbent padding is used where the rack casters (wheels) are located, be

Raised or non-raised floor considerations

The IBM FlashSystem A9000R storage system can be installed on a raised or a
non-raised floor.
Raised floor considerations
Installing the racks on a raised floor provides the following benefits:
v Improves operational efficiency and provides greater flexibility in the
v Increases air circulation for better cooling.
v Protects the interconnecting cables and power receptacles.
v Prevents tripping hazards because cables can be routed underneath the raised
When you install on a raised floor, consider the following factors:
v The raised floor must be constructed of fire-resistant or noncombustible material.
v Avoid the exposure of metal or highly conductive material at ground potential
v The raised floor height must be at least 30.5 cm (12 in.). Clearance must be
v When a raised floor tile is cut for cable entry or air supply, an extra floor tile
v The use of a protective covering (such as plywood, tempered masonite, or
v Concrete subfloors require treatment to prevent the release of dust.
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IBM FlashSystem A9000R Models 9835-415 and 9837-415 Deployment Guide
floor-load and space requirements.
required ventilation. See "Preparing for raised-floor installation and cabling" on
page 24.
by the location of overhead-cable exits and cable routing. See "Preparing for
non-raised-floor installation and cabling" on page 25.
the installation:
a. Whether under-floor or over-head power-cabling scheme is to be used.
b. The distance of the rack from the power receptacles.
"Preparing for the rear-door heat exchanger" on page 26.
sure to follow instructions in "Bottom rack dimensions" on page 23.
arrangement of equipment.
floor.
to the walking surface when a metallic raised floor structure is used. Such
exposure is considered an electrical safety hazard.
adequate to accommodate interconnecting cables, Fibre Channel (FC) cable
raceways, power distribution, and any piping that is present under the floor.
Floors with greater raised floor heights allow for better equipment cooling.
support (pedestal) might be required to restore the structural integrity of the
panel to the previous requirement.
plyron) is required to prevent damage to floor tiles, carpeting, and panels while
equipment is being moved into or is relocated within the installation site. When
the equipment is moved, the dynamic load on the casters is greater than when
the equipment is stationary.