Quantum Quantum ValueLoader, User Manual

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Diagnostics and Troubleshooting
Troubleshooting
46 ValueLoader LTO-1/LTO-2 Tape Autoloader User Manual
Troubleshooting
4
Installation
Problems
4
Problems encountered during the installation of the ValueLoader are
usually caused by improper SCSI bus configuration, application software
configuration errors, or an incorrectly configured operating system. If the
application software that you are using is not communicating with the
ValueLoader after installation, check the following:
•
SCSI ID:
The ValueLoader occupies two SCSI IDs: one for the tape
drive and one for the ValueLoader robotics. Depending on other
devices attached to the same SCSI bus and their SCSI IDs, you may
need to change the SCSI ID of either the ValueLoader or tape drive
before you can use the ValueLoader. Select an unused SCSI ID. See
the manuals for the other devices on the SCSI bus or your operating
system to determine which SCSI IDs are currently in use. If the
ValueLoader is attached to a narrow (50-pin) SCSI bus, only SCSI IDs
0 through 7 are available (see Changing the SCSI ID on page 36).
•
SCSI Cabling:
Verify that all SCSI cables are securely connected at
both ends. Check the length and integrity of your SCSI cabling. The
total length of all cables must not exceed the following lengths:
• SCSI-1 SE bus: 6 m (19 ft)
• Fast or Ultra SCSI (Narrow or Wide) SE bus: 3 m (10 ft)
• LVD bus with multiple devices: 12 m (40 ft)
• LVD bus with a single device: 25 m (82 ft)
The length of the SCSI cabling inside the ValueLoader is 60 cm (2 ft).
This length must be included in any calculations of total cable length.
Try replacing suspect SCSI cables with known good cables. Note that
it is not recommended to connect the ValueLoader to a narrow
(50-pin) or SE SCSI bus as performance will be restricted.