Backup, synchronisation and data recovery solve different problems

Backup, synchronisation and data recovery solve different problems. Know which copy is independent, which changes propagate and what you would actually restore after a mistake or device failure.

Compare the jobs

Mechanism	Main job	Question to ask
Synchronisation	Keep selected records aligned across locations or devices.	Can a deletion or unwanted change propagate?
Backup	Maintain recoverable copies under a defined policy.	Which versions, sources and restore paths are available?
Data recovery	Assess retrieval after loss or failure when normal access is unavailable.	What is feasible in the device’s current state?

Products may combine several features. Evaluate the configured behaviour rather than assuming the marketing label tells you everything.

Test a household or small-office example

Imagine a folder synchronised between a laptop and a cloud service. If an unwanted change reaches both, the second location may not be the independent recovery copy you expected. A provider may offer version or deleted-file restoration, but its actual availability and limits need checking.

Now imagine an external backup that has not been connected for months. It may be independent but too old for the work you need. Independence and recency are separate questions; a useful recovery plan needs both to match the requirement.

Ask what a backup includes

• The files, applications or settings that are actually copied.
• The schedule and evidence that copying still occurs.
• Available versions and applicable retention.
• Who can delete copies or change the policy.
• How recovery access is retained if the main account is unavailable.
• How a representative restore is verified.

Practise a restore without overwriting working data

Choose a noncritical sample and an appropriate separate destination. Follow the provider’s supported instructions and confirm the intended user can open the restored result. Record the source, version and outcome.

A successful backup notification is useful operational evidence, but it does not by itself show that every required file or application can be restored. For a business system, the test may need more than a file open: the required operation and dependencies should work.

Use recovery as an assessment, not a strategy

When no usable copy exists, recovery may be worth assessing, but success depends on the loss, device, encryption and prior attempts. It should not be treated as a guaranteed substitute for a backup routine.

Start with one important set of files and verify how you would recover it. For a business, expand that exercise to the operation and its dependencies. The practical goal is knowing which copy and access route you can rely on, with limitations recorded honestly.