C10 lesson 6 of 13 5 min read Intermediate

Backup, Redundancy and Data Protection

Every hard drive will fail eventually. Laptops get stolen, cards get lost, files get deleted by mistake, and ransomware can lock entire computers. If your photos exist in only one place, it is not a question of whether you will lose them, but when. A good backup system makes such events an inconvenience instead of a disaster. This lesson explains the most widely used backup rule, the common traps, and how to build a simple, reliable system.

The question this lesson answersHow do you make sure you never permanently lose your photos?

What is a backup?

A backup is a separate copy of your files that you can restore if the original is lost, damaged or changed. Redundancy means having more than one copy so that a single failure cannot destroy everything. Backing up is the first safety rule of the workflow in building a reliable capture-to-delivery workflow.

The 3-2-1 rule

The best-known backup guideline was popularised by photographer Peter Krogh in his work on digital asset management for photographers:

The 3-2-1 backup rule
NumberMeaningExample
3Keep at least three copies of your files: the original plus two backupsWorking drive, backup drive, cloud
2Store them on at least two different types of storageExternal hard drive and cloud storage
1Keep at least one copy offsite, in a different locationCloud backup, or a drive kept at another building

Remember:Offsite protects against fire, flood and theft, which can destroy every copy in one building. Modern versions of the rule also recommend keeping one copy that ransomware cannot reach, such as a disconnected drive or a backup service with protected file history, and regularly checking that backups restore correctly.

Things that are not backups

Common traps
SetupWhy it is not enough
RAID (several drives working as one)Protects against one drive failing, but not deletion, corruption, ransomware, theft or fire; it is still one copy
Cloud sync foldersSyncing copies deletions and damaged files to every device; if a file is deleted or encrypted, the change spreads
A second partition on the same driveIf the drive fails, both are lost
Photos left on memory cardsCards are small, easy to lose and not designed for long-term storage

Choose backup methods with versioning, which keep older versions of files for a period of time. Then if a file is deleted or damaged, you can restore an earlier, healthy version.

A practical backup system

  1. Working copy: your photos on your computer or main drive.
  2. Local backup: an automatic backup to a separate external drive or network storage, ideally every day.
  3. Offsite backup: a cloud backup service with versioning, or a second external drive kept at another location and swapped regularly.
  4. Field backup: while travelling or at events, copy cards to a laptop or portable drive and keep cards untouched until you are home, as in importing photographs.
  5. Test restores: every few months, restore a few files from each backup to make sure they open correctly.

Tip:Automate as much as possible. Backups that depend on remembering to do them are the ones that get skipped during busy weeks.

Storage drives and their lifespan

Hard drives, SSDs and memory cards all fail eventually, and older drives fail more often. Replace or check important drives every few years, keep an eye on warning signs such as strange noises, slow copying or errors, and never trust an old drive as your only copy. Long-term storage is covered in archiving and long-term preservation.

Protecting more than photos

  • Back up your editing catalog and its settings; losing it can mean losing edits, ratings and collections.
  • Back up XMP sidecar files together with RAW files.
  • Back up presets, templates and business records such as contracts and invoices.
  • Protect client data: use encryption and strong passwords, especially for private or sensitive images; see privacy and consent.

Common mistakes

  • One external drive as the only backup: it can fail or be lost with the computer.
  • All copies in one building: fire or theft can take everything.
  • Treating RAID or sync as backup: deletions and corruption spread.
  • Never testing restores: a backup that cannot be restored is not a backup.

How professionals protect their work

Professional photographers treat client photos as irreplaceable. Many shoot to two cards at once, keep cards untouched until files exist in two places, run automatic local backups and cloud backups with version history, and keep an extra disconnected copy. They test restores, replace aging drives on a schedule and include backup in their contracts and business planning. Losing a client's wedding photos can end a career; good backup prevents it.

Practical examples

A failed laptop drive

Situation
Your laptop drive fails the week after a big shoot.
What to do
You restore the photos from your daily external drive backup.
Why it works
The 3-2-1 system had copies on a separate device.
Result
Every photo restored, with only a day of lost time.

A burglary

Situation
Your laptop and external drive are stolen from your home studio.
What to do
You restore your photo library from your cloud backup to a new computer.
Why it works
The offsite copy was not in the building.
Result
Your whole archive and current client work are safe.

Key points

  • A backup is a separate, restorable copy; redundancy means more than one copy.
  • 3-2-1: three copies, two types of storage, one offsite.
  • RAID, sync folders and second partitions are not backups on their own.
  • Use versioned, automatic backups and keep one copy ransomware cannot reach.
  • Test restores regularly and replace aging drives.

Frequently asked questions

What is the 3-2-1 backup rule?
Keep three copies of your files, on two different types of storage, with one copy offsite.
Is RAID a backup?
No. RAID protects against a single drive failure, but not deletion, corruption, ransomware, theft or fire.
Is cloud storage a backup?
A cloud backup service with versioning can be your offsite copy. A simple sync folder is not a true backup because deletions spread.
How often should I back up my photos?
Immediately after every import, with automatic daily backups of your working files.

Conclusion

Backups turn disasters into inconveniences. Follow the 3-2-1 rule, avoid treating RAID or sync as backup, use automatic and versioned backups, keep one copy out of ransomware's reach and test your restores. Next, you will learn how to develop RAW files in an efficient, consistent order.

Finished reading? Track your progress through Workflow and delivery.

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