Snapshot is not a backup: a small difference with big consequences

"But we have snapshots." That sentence is probably heard more often in IT than you would think. And it is usually well meant. After all, snapshots are created regularly, data can be pulled back quickly when needed, and in day-to-day operations the whole thing works beautifully.
Except: a snapshot is still a long way from being a backup.
At first glance that sounds like splitting hairs. It isn't. The moment a storage system fails, an administrator accidentally deletes the wrong data, or a ransomware attack hits not just the production systems but the existing backups as well, a small technical difference suddenly becomes a very big deal.









