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Troubleshooting SCSI drive problems
How to check
Normally you can tell if a drive is spinning by listening carefully
when you first turn on the system power. A spinning drive will
produce a 'whining' sound when power is first applied. The
sound is easier to hear when you first start the system.
If you do not hear the drive spinning, check to make sure the
power connector is plugged into the drive and that the drive is
getting power. If possible, try another power connector or try
the drive in another system.
Another common way to tell if a drive is spinning is to feel the
drive for vibration when it is first powered up.
If the drive spins up and down, answer NO and go to "Are
the jumpers and cables connected correctly?".
CAUTION:
Disk drives can be damaged by ESD (electrostatic discharge).
If possible, use an ESD wrist strap when feeling the drive for
vibration. In no case should you touch the printed circuit
board on the drive. If you do not have access to an ESD wrist
strap, keep one hand on the metal frame of the system when checking
for vibration.
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