HP StorageWorks XP24000 Disk Array Site Preparation Guide, v01 (AE131-96002, June 2007)

Delivery space requirements
The delivery area must provide enough space and floor strength to support the packaged equipment
cartons for the disk array. Refer to the preceding packaged dimensions and the packaged weights.
CAUTION:
Make sure that your doorways and hallways provide enough clearance to move the equipment safely from
the delivery area to the computer room. Permanent obstructions such as pillars or narrow doorways can
cause equipment damage. If necessary, plan for the removal of walls or doors.
CAUTION:
Make sure all floors, stairs, and elevators you use when moving the disk array to the computer room can
support the weight and size of the equipment. Failure to do so could damage the equipment or your site.
Computer room requirements
The goal of a computer room is to maintain an ideal environment for computer equipment, including
this system.
Make sure your computer room adheres to all national and local building codes for a data
center/computer room environment.
HP recommends these guidelines:
• Locate the computer room away from exterior walls of the building to avoid the heat gain from
windows and exterior wall surfaces.
• When exterior windows are unavoidable, use windows that are double or tripled glazed and
shaded to prevent direct sunlight from entering the computer room.
• Maintain the computer room at a positive pressure relative to the surrounding spaces to reduce
introduction of contaminants.
• Install a vapor barrier around the entire computer room envelope (floors/walls/ceiling) to help
keep moisture out of the room. This is especially important if your computer room is located
underground.
• Caulk and vapor-seal all pipes and cables that penetrate the computer room envelope.
Preventing electrostatic discharge
Electrostatic discharge (ESD) can cause component damage, especially during servicing operations.
Static charges occur when objects are separated or rubbed together. The voltage level of a static
charge is determined by the following factors:
• Types of materials
• Relative humidity — low humidity increases ESD voltage.
• Rate of change — a standard air conditioner cools the air and lowers humidity. The faster the air
is cooled and dried, the greater the likelihood of ESD.
• Separation — refers to the static discharge that can be generated when two objects are separated.
For example, printer paper is often stored in cool dry conditions. If opened and used immediately,
Site requirements for the HP XP24000 Disk Array22