We are testing setting up our backups to be Data Deduped. We have 2 san units, one for staging, the other for the migration. We have successfully setup a job and tested the dedup portion. Our question is what happens to the original backup after the purge date is hit, say 4 months from now. Will we have to do another full backup to replace it? We are setting the units up across the WAN with a 10 mb fiber connection connecting the 2 sites. We can push the deduped data acorss just fine, however we wouldn't be able to push a full backup across the WAN. Any insight into the Arcserve process would be appreciated.