Question about HP C7438A (Refurbished) DAT Tape Drive

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Tape drive does not recognize or eject tape

Mt -f /dev/nst0 stat
SCSI 2 tape drive:
File number=-1, block number=-1, partition=0.
Tape block size 0 bytes. Density code 0x0 (default).
Soft error count since last status=0
General status bits on (50000):

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Re: tape drive does not recognize or eject tape

Yeah the Ultrium 4 tape drives only r/w to ULT3 and ULT4 tapes.

We put a Ultrium 2 tape in our 4 drive and it seems to be locked permanently.

Posted on Jan 30, 2008

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Look at this document to see if the interposer mechanism is holding the tape from ejecting. The solenoid that energizes to tape insertion or ejection sometimes relaxes and you have to move it manually out of the way to recover the tape.

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Back up tape is not recognizing

1. Stop all the services of your Backup Appl.
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Sounds like your tape drive or possibly the tape you are using is faulty.
check the following:
#1 - use a different tape
#2 - check that the read-only is not enabled on the tape(s)
#3 - run diagnostics on the drive (if it's come with software for diagnostics).
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Tape not ejecting from drive after 60 secs pressing eject button. I can hear it 'clicking' but no attempt to eject the tape is made. I would be very grateful for some advice regarding what I might do next.

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If it is a DAT (compaq used both Sony and HP mechs) try disconnecting the scsi cable from the scsi card, rebooting the drive and trying again.

If that doesnt work try a 00pt screwdriver in the manual eject point of the drive and unload manually (about 1000 turns!)

Failing that try as they are pretty good price wise for a repair / exchange

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1 Answer

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Hello! Try to change one SCSI cable. perhaps the connector was oxidized

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My Storegtek L80 can't recognize all of its tape drives

That thing required a SCSI terminator pack doesn't it.

If so, is it working properly.

I've had those things go out on me before leaving me to pull my hair out many times.

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Ultrium LTO 2 Tape Drive

Try holding the eject button down, for a long time, about 20 seconds (1 and 2 and ). This resets the tape drive, the lights on the front should go off, then come back on again. The tape will either eject automatically or will eject after the button is pressed normally.
The only time this dosen't work is if the tape is still out inside the drive.

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SONY LIB-81 Error on LCD screen - Drive Information 51

I think this sounds like the drive is having a issue loading and moving the tape in slot 1.
AIT units are known for having this kind of problem.
Try a cleaning tape and then a new tape fresh out the wrapper for a test backup.

if it fails with a known good tape then its time to send it out for repair


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