IBM DDRS-39130 - Ultrastar 9.1 GB Hard Drive, Specifications

Page: 63 / 228

6.8.4.1 Drive Mounting
The drive will operate in all axes (6 directions). Performance and error rate will stay within specification
limits if the drive is operated in the other orientations from which it was formatted.
The recommended mounting screw torque is 0.6 - 1.0 [ N m ] (6 - 10 [ Kgf.cm]). The recommended
mounting screw depth is 4 [ m m ] Max for bottom and 4.5 [ m m ] Max for horizontal mounting.
To avoid performance degradation, it is required to mount the drive in the system securely enough to prevent
excessive motion or vibration of the drive at seek operation or spindle rotation, using appropriate screws or
equivalent mounting hardwares. Consult with the issuer of this specification for actual application if neces-
sary.
Drive level vibration test and shock test are to be conducted with the drive mounted to the table using the
bottom four screws.
6.8.5 Shipping Zone and Lock
A dedicated "shipping" (or "landing") zone on the disk, not on the data area of the disk, is provided to keep
the disk data protected during shipping, movement, or storage. Upon power down, a heads are automat-
ically parked and a head locking mechanism will secure the heads in this zone.
6.8.6 Breather Hole
The breather hole must be kept clear and unobstructed at all times.
Do not seal up the breather hole.
Figure 48. Breather Hole Location
Specification
53