Check the staus of media server properties and check that multiple retentions
per media is checked, otherwise if you perform a FULL backup the tape is
flagged as full and is unusable until the retention date is reached.

You can check the status of the tape by running the bpmedialist command from
the command prompt. C:\veritas\netbackup\bin\admincmd>bpmedialist

Chuck

"eric" wrote:
>
>I am using a DDS4 tape with 20GB (uncompressed) / 40GB (compressed) capacity.
> I have only backed up 550MB worth of data, but if I try to back-up even
>1 more file in a new backup job I get a 'Media is allocated and non-overwritable'
>error and the tape ejects. Why is it trying to overwrite data if I am not
>even close to filling the tape?? I have tried the Quick Erase of the tape
>which allows me to make a few more backups but then I get the error again.
> Any help??