Snapshots vs backups: what customers actually need

Snapshots and backups are often used interchangeably. They are not the same tool, and treating them as interchangeable produces unpleasant surprises during recovery.

Snapshots

A snapshot is a point-in-time image of the disk, usually stored in the same infrastructure. It is fast to create and fast to roll back. It is ideal before risky changes, upgrades, or experiments. It is not a substitute for off-site protection: if the storage system or the account is lost, the snapshots often go with it.

Backups

A backup is a copy stored independently—different storage, preferably different location or provider. It is slower to create and restore, but it survives the failure of the primary system. Good backups are tested; untested backups are hopes.

What most VPS customers need

Both. Use snapshots for day-to-day safety nets and quick rollback. Use scheduled backups for disaster recovery and longer retention. Know the recovery point objective (how much data you can afford to lose) and the recovery time objective (how long you can afford to be down). Then choose frequencies and retention that match those numbers.

Customers who only have snapshots discover the gap when the problem is bigger than a bad deploy. Customers who only have slow backups discover the gap when they need to undo a change made twenty minutes ago.

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