Site Preparation Guide, Fourth Editon - HP Integrity rx7620 Server

Appendix B

General Site Preparation Guidelines

Facility Characteristics

This section contains information about facility characteristics that must be considered for the installation or

operation of the server. Facility characteristics are:

• Floor loading

•Windows

• Altitude effects

Floor Loading

The computer room floor must be able to support the total weight of the installed computer system as well as

the weight of the individual cabinets as they are moved into position.

Floor loading is usually not an issue in nonraised floor installations. The information presented in this

section is directed toward raised floor installations.

NOTE Any floor system under consideration for a server installation should be verified by an

appropriate floor system consultant.

Raised Floor Loading

Raised floor loading is a function of the manufacturer’s load specification and the positioning of the

equipment relative to the raised floor grid. Though HP cannot assume responsibility for determining the

suitability of a particular raised floor system, it does provide information and illustrations for the customer or

local agencies to determine installation requirements.

The following guidelines are recommended:

• Because many raised floor systems do not have grid stringers between floor stands, the lateral support for

the floor stands depends on adjacent panels being in place. To avoid compromising this type of floor

system while gaining under floor access, remove only one floor panel at a time.

• Larger floor grids (bigger panels) are generally rated for lighter loads.

CAUTION Do not install any raised floor system until you have carefully examined it to verify that it is

adequate to support the appropriate installation.

Floor Loading Terms

Table B-3 defines floor loading terms.

Table B-3 Floor Loading Term Definitions

Term Definition

Dead load The weight of the raised panel floor system, including the

understructure. Expressed in lb/ft

(kg/m