#Diavolo Backup available
15-Oct-94 08:36:32
Sb: #167543-#Diavolo Backup available
Fm: Martin Korndoerfer 73064,3307
To: Werner Kazmierzak 100041,1320
Werner,
Out of sync errors always appear if the data stream is missalinged, i.e.
there are additional or missing bytes.
Such an error can only be produced by an error in the SCSI bus or by a
failure of the streamer (quite unlikely).
I understand that you're using a DAT streamer, so a failure of the
streamer is even more unlikely if not impossible. Please check your SCSI
bus. The A2091 is a quite stable controller but nevertheless there may be
a wrong termination or simply an unshielded cable.
Diavolo is very sensitive to reselection problems. As there are two
different tasks working simultaneously with the same SCSI bus (the hd task
and the streamer task), it's essential that the reselection works as
expected or is completely disabled.
I don't think you've encountered a bug in Diavolo itself, because here are
many people who are using Diavolo with their DAT streamers, and with the
latest version there are no known problems yet.
Currently it's not possible to resync. You can, however, restore/compare
the rest of the backup. Simply deselect all successfully processed files
and repeat the process. Diavolo then skips all the previous files.
The lock you've encountered could be an error in Diavolo but could also be
an indirect result of the crash of the SCSI bus (Diavolo tries to open the
SCSI device once more before switching to the Device selection menue). You
can try to break Diavolo while it's working and then it does exit as it
should. If there is an error condition like yours the steps are quite the
same (the main process gets the message to show the error message and
subsequently cancels all subprocesses as it would when you break
manually). Of course, there may be an error in Diavolo, as it is quite
difficult to test all possible error conditions (if not impossible).
Martin Korndoerfer, Bavaria, Germany
Also flying on AutoPilot