-----David E Ehresman wrote: -----

>My guess is there is a problem talking to the library controller.  I
>would try setting the library path offline and then online.

Setting the library path offline and online didn't help. Deleting
and recreating the library path also didn't help. At that point I
decided to make sure the itdt test was still working. I ran that
test from my personal Linux account, and it failed with a message
indicating a permissions problem. I rapidly discovered that the
/dev/IBMtape0 special file allowed read and write access for owner
and group, and that neither my personal account nor the one used
to run the TSM server code was the owning user or belonged to the
owning group. I presume that the co-worker who ran itdt
successfully yesterday was logged on as root at the time. Once
the permissions were fixed I had no trouble defining the path to
the drive. We are still trying to figure out how to ensure that
the permissions will be correct after a reboot.

If the TSM developers had written decent error reporting code
I could have diagnosed the problem in two minutes rather than
two days.