Yes. It is. You obviously don't understand.
I do understand that some people keep 30 days of daily backups onto tape using either Incremental or differential backups and then go to monthly and so can snap shot back each day for 30 days. and then hit the monthly if they need it
we snap shot 7 days then a weekly, a monthly and a yearly so I can see that there is a difference there but not enough to justify a tape library at the size we would need. (we are talking hundreds of TB here)
Also have you ever done a big DR from tape? Fucking nightmare.
Saying that DFS and snapshots to redundant SANs in multiple datacenters is not backup is just ridiculous!
If I am wrong here please correct me.