Backup strategy
3-2-1-1-0: the backup rule we design every solution around
Every DeeAROps backup design is built to this rule, then proven with recovery validation rather than assumed.
Three copies of your data, on two different media, one off-site, one immutable or offline — and zero errors on verification.
Broken down, each number is a specific, checkable requirement rather than a slogan:
- 3 copies — the production data plus two backups, so a single failure never leaves you with only one copy.
- 2 media types — spreading copies across different storage types so one class of failure (a bad firmware update, a single storage array fault) can't take out every copy at once.
- 1 off-site — a copy physically or logically separated from the primary site, so a site-level event doesn't take the backup down with production.
- 1 immutable or offline — a copy that can't be altered or deleted on the network, even by an attacker with valid credentials.
- 0 errors on verification — every job actually tested for restorability, not assumed to have worked because it completed.
That last point is where most "backup strategies" actually fail: a job that completes without error is not the same as data that can be restored. DeeAROps builds recovery validation into every backup design from day one, so the answer to "can we restore this?" is evidence, not hope.
Ask us to assess your current backup design against 3-2-1-1-0