Drive Orientation; Cooling; Air Flow; Figure 9. Suggested Air Flow - Seagate ST446452W Product Manual

Elite 47 Product Manual, Rev. A
8.2

Drive orientation

The balanced rotary arm actuator design of the drive allows it to be mounted in any orientation. All drive perfor-
mance characterization, however, has been done with the drive in horizontal (discs level) and vertical (drive on
its side) orientations, and these are the two preferred mounting orientations.
8.3

Cooling

Cabinet cooling must ensure that the ambient temperature immediately surrounding the drive will not exceed
temperature conditions specified in Section 6.4.1. Specific consideration should be given to make sure ade-
quate air circulation is present around the printed circuit board assembly (PCBA) to meet the requirements of
Section 6.4.1.
8.3.1

Air flow

The rack, cabinet, or drawer environment for the drive must provide cooling of the electronics and the head and
disc assembly (HDA). You should confirm that adequate cooling is provided using the temperature measure-
ment guidelines described below.
The drive should be oriented, or air flow directed, so that the least amount of air-flow resistance is created
while providing air flow to the electronics and HDA. Also, the shortest possible path between the air inlet and
exit should be chosen to minimize the travel length of air heated by the drive and other heat sources within the
rack, cabinet, or drawer environment.
Possible air-flow patterns are shown in Figure 9. The air-flow patterns are created by one or more fans, either
forcing or drawing air as shown in the illustrations. Other air-flow patterns are acceptable as long as the tem-
perature measurement guidelines of Section 6.4.1 are met.
Figure 9. Suggested air flow
Above unit
Über der Einheit
Under unit
Unter der Einheit
Note. Air flows in the direction shown (front to back)
or in reverse direction (back to front)
Hinweis. Luftstrom in der angezeigten Richtung
(von hinten nach vorne) oder in umgekehrter
Richtung (von vorne nach hinten)
Note. Air flows in the direction shown or
in reverse direction (side to side)
Hinweis. Luftstrom in der angezeigten Richtung oder in
umgekehrter Richtung (von Seite zu Seite)
Above unit
Über der Einheit
Under unit
Unter der Einheit
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