HP StorageWorks DAT 40i, Getting Started Manual, Page: 15 / 50

11
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.
Caution Static electricity can damage electronic components. Always wear an antistatic wriststrap if
possible. If not, to equalize the electromagnetic charges, touch a bare metal part of the server
(such as the back plate) before you remove the tape drive from its bag.
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 35). 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.
The SCSI ID is set using jumpers on a set of pins at the rear of the drive, as shown in figure 3.
Use tweezers or small pliers to move the jumpers to the pattern corresponding to the ID you
want. Do
not
remove the TP jumper. It should always be set.
Spare jumpers will be attached to the drive.
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