Thank you for your reply.
The problem is not spanning on more tapes. That works fine, no problem. The problem is, that there is a job started with a wrong mediaset cartridge inserted. This is normally no problem I think, because BE ejects the cartridge and asks for a new cartridge with the right mediaset.
Now I have to insert this cartridge and then in my case I can only insert a overwritable (or empty, or from temporary mediaset..) tape NOT an half full tape from the right mediaset. BE will not append data in this case.
In the other case, if I have inserted this half full cartridge (before the job is started) in the drive already (no matter how much space there is left), BE has no problem to perfom this backup job and append the data to the tape.
The question is, where is the difference between this two cases? Is it normal, that there has to be the right cartridge inserted BEFORE the job starts. Does the requester for a new cartridge not work if I insert a tape for appending data? I dont understand why BE is not accepting a half full tape in the first case but has no problem with this tape when its already in the drive before I start the new job. Do I really have to stop the job that requests the tape, insert the (half full) tape and restart the job?
If this is a normal behaviour, ok then I have to deal with it. But if the tape has the right mediaset and is appendable why does BE refuses to write on it and asks for an overwritable tape? Thanks.
Regards Alex