Marking The Rack - Avaya S8510 Installation Manual

Server rack installation

Marking the rack

Prerequisites
The rack must be installed. If installing the server in a cabinet, then the doors must be removed.
You must allow 1 U (44 mm, or 1.75 in.) of vertical space for each server you install in the rack.
Rack cabinets that meet EIA-310 standards have an alternating pattern of three holes per
rack unit with center-to- center hole spacing (beginning at the top hole of a 1-U space) of
15.9 mm, 15.9 mm, and 12.7 mm (0.625 in., 0.625 in., and 0.5 in.) for the front and back
vertical rails. Rack cabinets may have round or square holes.
Note:
The vertical rails may be marked by horizontal lines and numbers in 1-U increments. If
you want, you can make a note of the number marking on the rack's vertical rail. It is not
necessary to mark or place tape on the rack
Caution:
If you are installing more than one server, install the mounting rails so that the first server
is installed in the lowest available position in the rack. If you are installing a UPS in the
same rack as the server(s), install the UPS in the lowest available position in the rack and
the servers above it.
1. Place a mark (or tape) on the rack's front vertical rails where you want to locate
2. Place a mark 1.75 in. (44 mm) above the original mark you made (or count up
20 Installing the Avaya S8510 Server Family and Its Components
the bottom of the server.
The bottom of each 1-U space is at the middle of the narrowest metal area
between holes (marked with a horizontal line on some rack cabinets).
three holes in a rack) and mark the rack's front vertical rails with a felt-tipped pen
or masking tape. If you counted holes, place a mark just above the top hole.
This mark or piece of tape indicates where the system's upper edge will be
located on the vertical rails.
May 2008