To continue...

Our NT full backup window is set to start at 18:00 on Saturday and end at 06:00 
on Sunday.

Here's what I observed:

Backup starts 7 streams at 18:00
2 of the streams terminate normally
5 streams fail with 174 (another story) at 01:08 then restart
Backup writes two more tapes and after end writing at 08:44, 4 streams 
terminate with 196
1 stream, writing to a different tape drive, terminates normally at 08:48

Just a thought, does Netbackup check the backup window end time when it mounts 
a new tape?

Regards,

Dave Pearson 
Ericsson Mobile Communications (UK) Ltd. 
' +44 (1256) 774700 
* dave.pearson AT eml.ericsson DOT se