Backup Exec is not appending backups

I'm backing up to a Network Attached Storage box.  I have two servers running Backup Exec 10.  One server is backing up just fine to the NAS.  The other throws up this error:

No appendable media could be mounted.
Switching to overwrite operation on scratch media.

The backup completes just fine after this error, but it overwrites the previous backup and I want it to append.
StevenscsAsked:
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honmapogCommented:
Check the "media set" you are targetting for this job. It has no appendable media available.
You can define the amount of time you can append to a tape by looking at the properties of the media set.If previous media is being overwritten, you may also have to change the "Overwrite Protection" setting of the media set. I can't remember, but if a tape is not overwrite protected, you may not be able to append to it.

There are a few snags: Media in the scratch pool, i.e. media that has just been erased by a quick erase for example are never appendable.

You may want to read up on how Backup Exec picks media: http://seer.support.veritas.com/docs/192265.htm
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StevenscsAuthor Commented:
Thanks, I think that was it.  I am going to leave this question open for a week or so in case there is a problem, then I will follow-up.

Here is another question in the meantime, when the NAS fills up, will Backup Exec automatically write over the oldest backups or is there some place I need to tell it that?

Thanks
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honmapogCommented:
Go into Tools/Options/Media Management. Make sure to have the "Overwrite recyclable media in the targeted media set before scratch media" selected.
Then anytime a piece of media reached reaches the end of the overwrite protection period, it will be reused.
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StevenscsAuthor Commented:
Thanks!
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