Re: Cost
LOL AC your understanding would be spot on if you hadn't missed the recovery points available in that disk system. In reality if you delete everything on one of my solutions, you create a snapshot which is empty (but the changes require no new space) which I could then roll back on either primary or recovery SAN. You, sir, are one of the people I need to explain this stuff to on a daily basis.
Backups and replication are not archival. Keeping a backup tape for a year is NOT compliant with any regulations. If you need to keep an archive, keep an archive which is a complete record of data, which a daily backup is not.
Block level data replication is just fine for databases which can be quiesced. I never mentioned sync rep, you just filled that in with your excitement at correcting someone.
Biting the hand that feeds IT
