Paul,

No, I have not seen this before: I use IBM Atape and tapeutil -f /dev/smc0
inventory without any problem.

Make sure that TSM or another program is not using the library device at the
same time or program around that.
Maybe a previous perl script that hangs/waits until next timeout?

Marcel

2011/5/9 Paul Fielding <paul AT fielding DOT ca>

> I have a wierd issue I'm hoping someone has seen before.   I have a 3584
> tape library attached to an AIX box.  I have a bunch of perl scripts that
> deal with tape automation.  Part of this process uses lbtest to grab the
> current contents of the IO door.   However, I've had it happen a few times
> where things stopped working, and when I investigate I find that lbtest has
> suddenly stopped returning barcodes.   All of the elements show FULL or
> EMPTY, but no barcodes are listed, and barcode_len = 0.
>
> If I go to the library web gui, I see the barcodes.  And if I just leave
> things alone, in 24h or so it seems to go back to normal.  Nothing I do to
> the library (including rebooting it) seems to fix the problem immediately.
>
> Very very wierd.  Anyone seen this before?
>
> regards,
>
> Paul
>



--
Kind Regards, Groetje,

Marcel Anthonijsz
T: +31(0)299-776768
M:+31(0)6-2423 6522