Octel XC1000, Service Manual

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ROUTINE MAINTENANCE
5-15 Edition One XC1000 Service
5.8 STORING AND HANDLING DISK DRIVES
Hard-disk drives can be damaged if improperly stored or handled. Shock
or vibration, electrostatic discharge (ESD), and effects from humidity can
damage the disk drive.
Dropping a drive from a height of as little as
1
/
2
inch onto
a solid surface can shock a drive. This results in damage
to the drive.
Caution!
Use the following guidelines to ensure safe and proper handling of disk
drives:
Shock or vibration: Subjecting a hard-disk drive to excessive shock or
vibration that causes the causes the drive head to contact the media
surface results in permanent damage to the drive.
Electrostatic discharge: Exposing the electronic components of a hard
disk to ESD results in damage to the components. When handling drives,
use the following precautions:
-
Before removing a drive from a XC1000, either attach an antistatic
wrist strap or use an equivalent method, to provide a high-resistance
path to ground.
-
After a drive is removed, immediately place it in an antistatic bag.
-
When installing a drive, keep the drive in its antistatic bag until ready
for use.
-
When returning a drive to Octel Communications, place the drive in
an antistatic bag, and place the bag into a shipping container
immediately.
Humidity: If moisture forms on the media surface of the drive, it causes
the head to stick to the media, resulting in damage to the media surface.
Use the following precautions when working in an environment with high
humidity:
-
Keep the disk drive in a sealed bag to prevent moisture from condens-
ing on it.
-
Do not store disk drives in a high-humidity environment for long periods
of time, because, over time, moisture will penetrate a sealed bag.
SECTION 5.8