Quantum DLT VS80 manual Understanding Errors Indicated by Front Panel LEDs

DLT VS80 Tape Drive Installation and Operations Guide

Table 3-2.Understanding Errors Indicated by Front Panel LEDs (Continued)

Symptom	Problem	Solution
The host server or	The SCSI bus might be	• If your tape drive is the last or only device
workstation does not	improperly terminated.	on the SCSI bus, make sure the tape drive is
recognize the tape drive.		properly terminated.
(continued...)		• If the tape drive is not the last or only device
		on the SCSI bus, check all of the SCSI cable
		connections and make sure the last device
		on each end of the SCSI bus is terminated
		and powered on.
		Note: The SCSI host bus adapter must usually
		be terminated.
	The SCSI terminator might	Make sure the terminators are placed only at
	not be at the end of the SCSI	each end of the SCSI bus—one at the host bus
	bus or more than two	adapter and one on the last device on the bus,
	terminators might be present	for both the internal and tabletop tape drives.
	on the SCSI bus.
	The SCSI host bus adapter	Move the SCSI host bus adapter to a different
	might be in a defective	expansion slot.
	expansion slot.
	The SCSI bus might be too	Make sure the total length of the SCSI bus does
	long.	not exceed these ANSI SCSI standards:
		• 19 feet (6 meters) for an SE bus
		• 40 feet (12 meters) for an LVD SCSI bus
		with multiple devices
		• 82 feet (25 meters) for an LVD SCSI bus
		with a single device
		• 10 feet (3 meters) for a Fast SCSI-2 or Ultra
		SCSI-1 bus.
There are fatal or non-fatal	The SCSI bus might be	• If the tape drive is the last or only device on
errors for which you cannot	improperly terminated.	the SCSI bus, make sure the tape drive is
find the cause.		properly terminated. Make sure only the last
		device is terminated.
		• If the tape drive is not the last or only device
		on the SCSI bus, check all SCSI cable
		connections and make sure the last device
		on the SCSI bus is terminated and powered
		on.
	The AC power source may	• Plug the tabletop tape drive’s power cable
	not be properly grounded	into a power outlet on the same circuit as the
	(tabletop tape drive only).	host server or workstation.
		• Plug the tabletop tape drive’s power cable
		into a different power outlet.

001596-01 Rev A07 May 2004 3-21