Here's the result of the mt status command:

# mt -f /dev/nst0 status
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 (4050000):
 WR_PROT DR_OPEN IM_REP_EN

# mt -f /dev/nst1 status
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):
 DR_OPEN IM_REP_EN

I also checked the status of the other devices. All match with the
exception of nst0. The status clearly indicates this is write-protected.
How and the heck it became that why I don't know. Not sure if we could
try
to reset it and/or how to do that or just assume the drive is bad?

George

Byron Servies wrote:
>
> On Jul 28, 2004, at 12:31 PM, George Sinclair wrote:
>
> > Yeah, it almost seems like some kind of hardware issue, like maybe
> > something internal to the drive that allows write access has been
> > unset.
> > Not sure how, though. There are no power switches on the drives that I
> > can tell, only the buton to eject the tape and some leds. When I
> > manually load/unload a tape from this drive, the lights behave exactly
> > the same as on the other drives. The only power switches I see are on
> > the back of the unit. I power cycled the library, but maybe I need to
> > leave it off longer?
>
> Does it go into read only mode when it needs cleaning?
>
> # mt -f /dev/nst0 status
>
> might give interesting information.
>
> Byron

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