Product manual

Devices at both ends of the SCSI bus must be terminated; intermediate
devices should not be terminated. All electrical signals are common
between all SCSI devices.
2.11 Hot-plugging
Hot-plugging allows you to connect and disconnect the I/O and power
cables for each SCSI device in a daisy chain without powering down the
system. When hot-plugging, the following conditions must be met:
• All I/O transactions are complete before you install or remove a drive.
• The terminators at either end of the SCSI bus are in place.
• The drive you are disconnecting or connecting is not the device that
supplies terminator power or terminator resistance to the bus.
To avoid damage to the head/disc assembly, the spindle motor must be
completely stopped and the heads must be parked before before you
remove the drive from the system. You can stop the spindle and park the
heads as follows:
• If the drive is not configured to use the remote start/stop feature,
disconnect the DC power cable from the drive DC power connector
and wait 30 seconds.
• If the drive is configured to use the remote start/stop feature, issue the
Start/Stop Unit command and wait 30 seconds.
2.12 Mounting the drive
The drives fit the standard 3.5-inch form-factor but have a 0.75-inch
height profile and a 5.38-inch depth profile. You can mount them securely
in the computer using either the bottom or side mounting holes, as
described below. Position the drive so that you do not strain or crimp the
cables. Refer to Figure 6 and Figure 7 on pages 32 and 33 for the
mounting dimensions
Bottom mounting holes.
Insert 6-32 UNC-2A mounting screws in the
four available bottom mounting holes. Do not insert the screws more than
0.20 inches (6 turns) into the drive frame.
Side mounting holes.
Insert 6-32 UNC-2A mounting screws in four of
the six available side mounting holes. Use two mounting holes on each
side of the drive. Do not insert the screws more than 0.20 inches (6 turns)
into the drive frame.
30 Medalist Pro 2160N/2160WC Product Manual, Rev. A