Hi NetBackup gurus,

I have a stupid problem due to the lack of my understanding how NetBackup works.

I have a Sun StorEdge L9 tape autoloader. It writes to DLT2 tapes. 
I have a class for full back up of one server which takes appr. 30G.
One tape can store 40G, if I understand it correctly.

THe first backup goes to tape without problems. When the second backup is 
attempted,
the tape writes to some point, then returns write media error, probably
because of the end of the tape reached. So the attempt fails with code 84.

Then another attempt starts, but the same tape is being selected and the story 
repeats. 

My question is: should one backup fit on one tape? Or can it start on one tape
and continue on another? How does NetBackup estimate what can go to some
particular tape? Is there any way to prevent such behaviour?

Thank you,
-- 
Konstantin 'Kastus' Shchuka
Unix System Administrator
ePocrates Inc.
tel 650.232.4886
fax 650.592.6995