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26 HP StorageWorks Disk Array XP128: Site Preparation Guide
unobtrusively. It should allow for optimum distribution of conditioned air.
Raised floor access ramps must not exceed 10
° slope.
To estimate floor strength, you should consider the following items:
• The total weight of the equipment (the unpacked and packaged
weights are listed in this chapter)
• The total weight of furniture such as desks, chairs, and storage
cabinets
• Total approximate weight of computer room personnel
• Weight of moving equipment such as forklifts, dollies, and so on.
Any questions regarding the adequacy of construction should be referred to
and evaluated by a qualified structural engineer.
Caution In addition to determining the adequacy of the computer site floor, ensure
that all floors, stairs, and elevators which might be used when the disk
array is moved to its destination can support the weight and size of the
equipment. Failure to comply can result in damage to the equipment or the
facility.
Maximum floor loading
Maximum point floor loading is 500 kg (1102.3 lbs). The table below
shows the floor load rating required for different service clearances
(minimum configuration).
Floor Load Rating
(kg/m
2
)
Clearance (C) (m)
C=0 C=0.2 C=0.4 C=0.6 C=1.0
500 0.4 0.3 0.2 0.1 0
450 0.6 0.4 0.3 0.2 0.1
400 0.6 0.6 0.5 0.4 0.2
350 1.2 1.0 0.8 0.6 0.4
300 1.7 1.4 1.2 1.0 0.8