Quantum DLT S4 User Manual page 144

If...
The computer does not
recognize the DLT-S4
tape drive system
(continued)
The tape drive does
not turn on
Nonfatal or fatal errors
have occurred for
which the cause
cannot be determined
DLT-S4 Product Manual
Then...
The SCSI bus may be too
long.
There may be too many
devices on the SCSI bus.
A device may not have
been turned on and a valid
SCSI ID may not have been
configured for that device
before the system powered
on and loaded BIOS.
No power is reaching the
tape drive.
Interface bus termination
or the interface cable
connections may be
incorrect.
The AC power source
grounding may be
incorrect (tabletop model).
You should...
The maximum cable length for one DLT-S4 tape
drive is 20 meters. The maximum SCSI cable
interconnect length is 10 meters total with a
maximum of two DLT-S4 tape drives on the bus.
• Limit the number of tape drives on SCSI bus;
Quantum recommends one DLT-S4 tape drive
per bus, with a maximum of two DLT-S4 tape
drives per bus.
Turn the tape drive on first, and then turn on the
computer. This will enable the tape drive to be
properly recognized by the system.
Check the tape drive's power cable connection at
the rear of the system.
• Ensure the SCSI bus is terminated and that all
connections are secure, or
• Ensure the Fibre Channel or SAS cables are
secured at the host and drive ends.
Use an AC outlet for the tabletop tape drive on the
same AC line used by the host system.
Chapter 14 Troubleshooting
POST and SCSI Troubleshooting
126