Backup vs. Disaster Recovery: What's the Difference?

"We have backup" is the most dangerous sentence in IT, because it conflates copying data with recovering operations.

Understanding the distinction saves you from discovering gaps during ransomware, not during a calm Tuesday review.

Backup defined

Backup creates copies of data and systems on a schedule:

• File-level (OneDrive, file server)
• Image-level (full VM or bare metal)
• SaaS backup (M365 mailboxes, SharePoint, not included in Microsoft by default)

Success metric: can you restore a file, mailbox, or server to a known point in time?

Disaster recovery defined

DR is the plan and capability to restore critical business functions within agreed timeframes:

• Which systems come back first
• Where they run if primary site is unavailable
• Who declares disaster and communicates externally
• How often the plan is tested end-to-end

Success metric: can the organization operate while recovery proceeds?

The 3-2-1 rule (still valid)

• 3 copies of data
• 2 different media types
• 1 offsite or immutable copy

For ransomware era, add: immutable or air-gapped copy attackers can't encrypt.

Questions for your MSP or internal IT

1. When did we last successfully restore (not just verify job green)?
2. What's our RPO for email? File shares? Line-of-business app?
3. Is M365 protected beyond Microsoft's recycle bin?
4. Do we have offline credentials for backup console if AD is down?
5. Is there a written runbook non-IT leadership can follow?

Common gaps

• Backup jobs "succeed" but exclude critical drives
• Cloud sync mistaken for backup (OneDrive isn't DR)
• No test restores because "we might break something"
• Backup admin uses same credentials as domain admin, stolen in same breach

Bottom line

Backup is a component. DR is the program. You need both, sized to what leadership expects when things go wrong.

Precipice verifies backups as part of managed service, including test restores. Book an audit.