Your problem , especially in the =case of
physical tape, is that you put multiple retentions on the sane tape. I understand
that in the short term this might reduce an initial tape purchase, but in
the long term, you probably end up buying more tapes because the ones you are
using contain 50% (or more) expired images, and at least one image that has not
expired. Since it is very complex to try to “recycle” part of
a tape cartridge, I don’t think any vendor does it.
You have two basic options here:
of “Allow multiple retentions per tape” an create separate tape
pools for policies with different retentions to pull from
the tapes from each backup session until all the images have expired.
Weymouth, MA 02191
mark.hickey AT hds DOT com