I created a backup plan to backup to a NAS via UNC (\\192.168.x.y\backup\pdc) on our Windows 2003 SBS, which stops after 1 sec with this error: "The operation was not performed because the specified media cannot be found."
I think this has something to do with the user running the ntbackup script itself. When I execute the ntbackup command in my administrator commandline, it works as it should. If the backup routine kicks in (it is listed in the scheduled tasks list, where one can i.e. run it manually), it does not work. I read something about a SBS Backup User, who executes the command.
How can I change that or how can I give that particular user the right (aka provide credentials) to access the NAS?
You should be able to specify the user account when you schedule the backup. Either in the advanced settings of ntbackup, or in task scheduler.
Don't use the SBS backup wizard. Writing your own script to run NTBackup is easy, and you get to choose how the scheduled job is run. There are lots of walkthroughs on scripting NTBackup, or I can post a script here. It's easier than you think. The scripts around on the web tend to look complicated, but only because they do lots of extra cunning stuff.
JR
It maybe had something to do with a recent change to the administrative account's password.
I deleted all "planned tasks" related to the backup process, and recreated them with the "add planned task" wizard. By using the backup wizard then provided, i was able to set up everything as i wanted it through the ntbackup interface, and now have also the full command ("ntbackup.exe ...") in the tasklist. Having set the run as stuff correctly, this now works fine - and the sbs recovery tools work too.