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Step 1: Check the drive's SCSI ID
Your HP StorageWorks DAT drive is shipped with a default SCSI ID of 3. Each device on the
SCSI bus must have an unique SCSI ID number.The drive can be assigned any unused ID
between 0 and 15. Do not use SCSI ID 7, which is reserved for the SCSI controller. SCSI ID 0
is typically assigned to the boot disk and should also not be used unless the tape drive is on a
dedicated SCSI bus.
1
Determine whether you need to change the SCSI ID from the default of 3.
For many operating systems you can install HP Library & Tape Tools from the
HP StorageWorks Tape CD-ROM and run the "Install Check" to check your server's current
SCSI configuration (see page 29). This will provide information about the SCSI bus and the
SCSI IDs in use.
The UNIX Configuration Guide on the HP StorageWorks Tape CD-ROM also contains
instructions on how to determine the SCSI IDs of existing devices on UNIX servers.
2
Change the tape drive's SCSI ID, if necessary.
Use a small screwdriver or a ball-point pen to press the indented SCSI ID selector buttons on
the rear panel (see figure 3) until the required value is displayed. Do not use a pencil because
small bits of graphite could contaminate the drive.
Note The computer and the tape drive SCSI IDs are only checked at power-on. To change the SCSI
ID after installation, power down both the computer and the tape drive, change the drive's
SCSI ID, power up the tape drive, and then power up the computer.
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