Hp Secure Key Manager Manuel d'utilisateur télécharger pdf (Page 23)

WARNING!

To reduce the risk of personal injury or equipment damage when unloading a rack:

• At least two people are needed to safely unload a rack from a pallet. An empty 42U rack can weigh

as much as 115 kg (253 lb), can stand more than 2.1 m (7 ft) tall, and may become unstable when

being moved on its casters.

• Never stand in front of a rack when it is rolling down the ramp from the pallet. Always handle a

rack from both sides.

Optimum environment

When installing an SKM in a rack, select a location that meets the environmental standards described

in this section and Environmental speciﬁcations.

Space and airﬂow requirements

To allow for servicing and adequate airﬂow, observe the following space and airﬂow requirements

when deciding where to install a rack:

• Leave a minimum clearance of 122 cm (48 in) in front of the rack.

• Leave a minimum clearance of 76.2 cm (30 in) behind the rack.

• Leave a minimum clearance of 122 cm (48 in) from the back of the rack to the back of another

rack when racks are back-to-back.

An SKM draws in cool air through the front door and expels warm air through the rear door. Therefore,

the front and rear rack doors must be adequately ventilated to allow ambient room air to enter the cabinet,

and the rear door must be adequately ventilated to allow the warm air to escape from the cabinet.

CAUTION:

To prevent improper cooling and damage to the equipment, do not block the ventilation openings.

When vertical space in the rack is not ﬁlled by an SKM or rack component, the gaps between the

components cause changes in airﬂow through the rack and across the servers. Cover all gaps with

blanking panels to maintain proper airﬂow. Using a rack without blanking panels results in improper

cooling

that can lead to thermal damage.

The Comp

aq 10000 Series racks provide proper SKM cooling from ﬂow-through perforations in the front

and rea

r doors that provide 64 percent open area for ventilation.

CAUTION:

If a third-party rack is used, observe the following additional requirements to ensure adequate airﬂow

and to prevent damage to the equipment:

• Front and rear doors—If the 42U rack includes closing front and rear doors, you must allow

5,350 sq cm (830 sq in) of holes evenly distributed from top to bottom to permit adequate airﬂow

(equivalent to the required 64 percent open area for ventilation).

• Side—The clearance between the installed rack component and the side panels of the rack must

be a minimum of 7 cm (2.75 in).

Temperature requirements

To ensure continued safe and reliable equipment operation, install or position the system in a

well-ventilated, climate-controlled environment.

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Hp Secure Key Manager Manuel d'utilisateur Page 23

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