Donaldson, Mark wrote:
> It's a feature that allows you to put images with differing retentions 
> on a single tape.  Normally NB will group similar retentions together. 
> 
> The default method, single-retention per tape, is preferred IMHO.  A 
> tape is not reusable until every image on that tape completes its 
> retention period.  If you're running mixed retentions, then one 
> long-retention image will "lock" that tape from reuse until it expires, 
> even if every other image on that tape expired months ago.
> 
> By grouping retentions, the shorter retention tapes will not be locked 
> from reuse by a stray long-term image.
> 
> I'd only recommend allowing multiple retentions per media if you're 
> using a tape stacker or other non-library like device.
> 
> $.02
> -Mark

I agree with this..We've tried it for a while and it only made matters 
worse..We were constantly running out of tapes :-(


best regards

Christian