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What are cloud archives?
Cloud archives are low-cost cloud storage for data you rarely need but must keep, such as old projects, finished photo shoots or records. Unlike a backup, an archive is often the main copy, not a duplicate. Archive storage is cheap to keep but slower and costlier to retrieve, sometimes taking hours.
People often mix up cloud archives and backups because both store data in the cloud. The difference is purpose. A backup protects data you use now. An archive keeps data you have finished with, so your devices stay lean.
| Factor | Backup | Archive |
|---|---|---|
| Purpose | Recover current data | Keep old data long term |
| Is it the only copy? | No, a duplicate | Often the main copy |
| Changes often? | Yes, daily | Rarely or never |
| Retrieval | Fast | Minutes to 48 hours |
| Storage price | Moderate | Very low per TB |
| Typical tool | Backblaze, iCloud, IDrive | Amazon S3 Glacier, archive tiers |
How does cloud archive storage work?
Cloud archive storage keeps data on cheaper, slower systems and charges more when you read it back. Providers pass on the savings because archived data rarely moves. You trade convenience for cost.
Amazon S3 Glacier is a good example. AWS lists Glacier Deep Archive at about $1 per TB per month, with retrieval taking roughly 12 to 48 hours. Instant Retrieval costs more but returns files in milliseconds. Retrieval and request fees apply on top.
Who uses cloud archives
- Photographers keeping finished client shoots
- Video editors storing raw footage after delivery
- Small businesses holding records for tax or legal reasons
- Families storing scanned albums and old home videos
Archive vs backup: do you need both?
Yes, if the archive holds your only copy of something irreplaceable. An archive is not protected by the 3-2-1 rule unless you keep a second copy elsewhere. Many people archive to the cloud and keep a drive copy at home.
The existing guide on whether you need a backup of a backup explores this question in depth. The short answer is that any data you cannot lose needs two copies in two places.
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Get the checklistWhat do cloud archives mean for privacy?
Archives often hold sensitive old records, so encryption matters. Most archive services encrypt data at rest, but the provider holds the keys by default. Encrypt files yourself before upload if they contain personal or client data.
Tools such as Cryptomator or 7-Zip with AES-256 can encrypt archive files locally. Keep the password in a password manager. If you lose it, nobody can open the archive, including you. See encrypted cloud backup.
Common myths about cloud archives
- “Archive storage is always cheaper.” Storage is cheap, but retrieval fees can surprise you.
- “An archive is a backup.” Not if it is the only copy.
- “I can open archived files instantly.” Deep tiers can take up to two days.
- “Archives last forever.” Only while you pay and the account stays active.
What to check in an archive provider
Check storage price per TB, retrieval time, retrieval fees, minimum storage duration and early deletion fees. Many archive tiers charge if you delete data within 90 or 180 days. Read the pricing page carefully.
For home users who want simplicity, a large standard plan may beat a technical archive tier. Compare options on our cloud cost page and our best cloud storage hub. For the wider strategy, see back up to the cloud.
Frequently asked questions
What is the difference between cloud archives and cloud backup?
A cloud backup is a duplicate of data you still use, kept so you can recover it quickly. A cloud archive stores data you no longer use often, usually as the main copy, at a lower price. Archives are cheaper to keep but slower and costlier to retrieve.
How much do cloud archives cost?
Archive tiers are among the cheapest cloud storage available. AWS lists S3 Glacier Deep Archive at about $1 per TB per month, plus retrieval and request fees. Consumer services rarely offer archive tiers, so home users often use a large standard plan instead.
Are cloud archives safe for important files?
They are durable, but an archive should not be your only copy. Accounts can be closed, payments can lapse and mistakes happen. Keep a second copy on a drive or another service, and encrypt sensitive files before uploading them.
How long does it take to get files back from an archive?
It depends on the tier. Some archive tiers return files in milliseconds, others in minutes or hours. Amazon S3 Glacier Deep Archive can take roughly 12 to 48 hours. Plan ahead if you might need archived files on a deadline.
Should I archive old photos to the cloud?
Archiving finished photo collections can free space on your devices and keep originals safe. Keep at least one more copy, such as an external drive, because photos are irreplaceable. Our cloud photo storage guide compares services suited to large libraries.
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