Short answer: pick an online backup service based on what you are protecting: for a whole computer with lots of data, an unlimited-per-computer service is best value; for syncing files across devices, cloud storage is better. The two are different tools. Here is how to choose and how backup fits a complete plan.
Backup vs cloud storage (know the difference)
| Online backup | Cloud storage | |
|---|---|---|
| Purpose | Protect everything automatically | Sync and access chosen files |
| Examples | Backblaze, IDrive, Carbonite | Google Drive, Dropbox, OneDrive |
| Best for | Disaster recovery of a whole PC | Working across devices |
Backup runs quietly and copies your whole machine; storage is for files you actively work with. Many people use one of each.
How to choose an online backup
- Data amount: if you have hundreds of GB, look for unlimited-per-computer pricing (like Backblaze) rather than per-GB.
- Devices: some plans cover multiple computers and external drives (IDrive is generous here).
- Versioning: good backup keeps old versions, so you can recover a file from before it was changed or hit by ransomware.
- Restore options: check how you get data back (download, or a mailed drive for large restores).
- Security: prefer services offering private/end-to-end encryption.
Do not forget the free layers
Alongside a paid backup, use what you already have: Windows File History or a local image on an external drive, and free cloud tiers for your most important files. Layering free and paid gives resilience without overpaying.
The complete plan: 3-2-1
The gold standard is 3 copies of your data, on 2 types of media, with 1 off-site. In practice: your computer, a local image on an external drive, and an online backup (the off-site copy). An online service is the easiest way to cover that off-site third, which survives fire, theft or a failed local drive.
The non-obvious tip: test a restore before you trust it
People set up a backup and assume it works, then discover at the worst moment that it was misconfigured or excluded a key folder. Once your online backup finishes its first run, actually restore a test file. A backup you have never restored from is only a hope; a tested one is real protection.
Frequently asked questions
What is the difference between online backup and cloud storage?
Backup automatically protects your whole computer for disaster recovery (Backblaze, IDrive); cloud storage syncs chosen files across devices (Drive, Dropbox). Many use both.
How do I choose an online backup service?
Match it to your data amount (unlimited-per-computer for lots of data), device coverage, version history, restore options, and encryption.
What is the 3-2-1 backup rule?
Keep 3 copies of data, on 2 types of media, with 1 off-site, for example your PC, a local external-drive image, and an online backup as the off-site copy.
Should I test my online backup?
Yes. After the first backup completes, restore a test file to confirm it works and nothing important was excluded. An untested backup is only a hope.
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