42 | Barracuda 36ES2 Product Manual, Rev. B |
8.1.3Drive 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.
8.2Cooling
Cabinet cooling must be designed by the customer so that the ambient temperature immediately surrounding the drive will not exceed temperature conditions specified in Section 6.4.1, “Temperature.” Specific consider- ation should be given to make sure adequate air circulation is present around the printed circuit board (PCB) to meet the requirements of Section 6.4.1, “Temperature.”
8.2.1Air flow
The rack, cabinet, or drawer environment for the drive must provide heat removal from the electronics and head and disc assembly (HDA). You should confirm that adequate heat removal is provided using the temper- ature measurement guidelines described in Section 6.4.1.
Forced air flow may be required to keep temperatures at or below the specified case temperatures, in which case 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.
If forced air is determined to be necessary, possible
Note. Air flows in the direction shown (back to front) or in reverse direction (front to back)
Above unit
Under unit
Note. Air flows in the direction shown or in reverse direction (side to side)
Above unit
Under unit
