How to back up your photos: the 3-2-1 rule, made simple
Drives fail, laptops get stolen and cards corrupt. Losing years of photographs is avoidable with three copies, one simple folder system and a routine that runs itself.
The laptop was four years old and had never given any trouble. Then one morning it would not start. The repair shop recovered nothing from the drive. Somewhere on it were three years of photographs: a trip along the Great Ocean Road, a sister's wedding, every frame of a first Milky Way attempt at Lake Tyrrell. There was a backup. It was the Lightroom catalogue backup, saved to the same failed drive, and it did not contain a single photograph.
Hard drives fail. Laptops are dropped, stolen and left on trains. Memory cards corrupt. None of this is rare, and none of it matters if your photographs live in more than one place. Backing up is not difficult. It just has to be set up once, properly, and then made into a habit.
The 3-2-1 backup rule for photographers
The standard advice, used by IT departments and professional photographers alike, is the 3-2-1 rule:
- 3 copies of every photograph: the working copy plus two backups.
- 2 different types of storage, for example an internal drive and an external drive, or a drive and the cloud.
- 1 copy off-site, somewhere a fire, flood or burglary at home cannot reach.
Each number guards against a different failure. Three copies means one drive dying is an inconvenience, not a loss. Two types of storage protects against a single weakness, such as a batch of drives from the same shelf failing together. The off-site copy covers the disaster that takes everything in the house at once. A drive in the desk drawer next to the computer is a backup. It is not an off-site one.
A practical version for most people: photographs on the computer or a working external drive, a second external drive at home that receives regular backups, and a cloud backup service running quietly in the background. That is three copies, at least two types of storage, and one off-site.
Lightroom catalogue backup vs backing up your photos
This is the misunderstanding that catches more photographers than any other. When Lightroom Classic asks to back up the catalogue on exit, it is backing up the catalogue: the database file ending in .lrcat that records where your photographs are, your keywords, ratings, collections and every edit. It does not copy the photographs themselves. Those are separate files in folders on your drive, and Lightroom Classic only points to them.
So you need both. The catalogue backup protects months of editing and organising work. The photograph backup protects the originals. Lose the catalogue and you still have your pictures, without the edits. Lose the originals and the catalogue is a list of files that no longer exist.
Two sensible habits make this easier. Keep Lightroom Classic's catalogue backups on a different drive from the catalogue itself, and delete old ones now and then, because they accumulate. And if you want your edits to travel with the files, you can switch on the option to write changes into XMP sidecar files for raw images, so another copy of your adjustments sits beside each photograph.
The cloud-based version of Lightroom works differently. It uploads your originals to Adobe's servers, which means the photographs themselves are stored off-site, within the limits of your storage plan. Check what your plan includes and whether you have set it to keep local copies as well. Our private lessons include a Lightroom session that can set up the catalogue, folders and backup locations on your own computer.
A backup you have never restored from is a hope, not a backup.
Cloud backup vs cloud sync: what is the difference?
Cloud storage comes in two broad kinds, and they behave very differently when something goes wrong.
Sync services such as iCloud Photos, Google Photos, Dropbox and OneDrive keep the same files mirrored across your devices. They are convenient and they are off-site. But sync works both ways. Delete a folder on the laptop and it disappears from the cloud as well, usually after a grace period of a few weeks in a recycle bin. Some services also save compressed versions unless you choose original quality. Sync is useful. On its own, it is not a backup.
Dedicated backup services copy your drives to the cloud and keep previous versions and deleted files for a set period. They are designed for recovery rather than access. Prices, storage limits and how long deleted files are retained vary between providers and change often, so compare the current terms before you choose.
Whichever you use, the first upload is the slow part. A large raw archive can take days or weeks over a typical home internet connection. Leave the computer running overnight and let it work. After that, only new files need to go up.
| Storage | Good for | Watch out for |
|---|---|---|
| External hard drive | Cheap, large, fast local backup | Mechanical failure, drops, lives at home |
| External SSD | Fast, tough, good for travel | Higher cost per terabyte |
| Cloud sync | Access across devices, off-site | Deletions sync too; check file quality |
| Cloud backup | Automatic off-site copy with versions | Slow first upload; retention limits |
How to organise photo files before backing them up
A backup is only as useful as your ability to find things in it. Before setting anything up, gather your photographs into one place: one top-level folder, on one drive, instead of scattered across the desktop, the downloads folder and three old cards.
Inside it, a folder per year, then a folder per shoot named with the date first, works for almost everyone: 2024, then 2024-03-25 Mount Macedon. Dates sort correctly, and you can find any shoot in seconds even without software. If you use Lightroom Classic, do this organising inside Lightroom, not in Finder or File Explorer, or the catalogue will lose track of where files went.
Keep everything you are working on inside that one folder, and the backup becomes simple: copy that folder, and everything is covered.
A simple photo backup routine
Systems fail when they rely on memory. Set up as much as possible to run automatically, then attach the few manual steps to something you already do.
- After every shoot: import from the card to your photo folder. Leave the files on the card.
- The same day: let the automatic backup run, or copy the new folder to your external backup drive. Only once the files exist in two places should you format the card, and format it in the camera, not the computer.
- Continuously: a cloud backup service, or Time Machine on a Mac or File History on Windows, running in the background.
- Monthly: check the backup drive and cloud service actually contain last month's shoots. Open a few files at random.
- Once a year: check the age of your drives, replace any that are old or making unusual noises, and practise restoring a whole folder.
That last step is the one almost everyone skips. A backup you have never restored from is a hope, not a backup. Drives can be quietly unplugged for months, cloud services can stop after a lapsed payment, and a folder can be excluded by accident. Restoring one shoot a year proves the whole chain works.
Travelling adds a wrinkle, because the house is no longer the safe place. Carry a small SSD and copy each day's cards to it at night, and keep the cards and the drive in different bags. Where the connection allows, upload a selection of favourites to the cloud as you go.
If your archive has grown out of control, or you are moving to a new computer and want the catalogue, folders and backups set up properly, a one-on-one Lightroom lesson is the fastest way through it. Photographers building a longer-term body of work can also cover workflow as part of a mentoring program.
Practise this
- Draw your current backup on paper: every place each photograph exists. Count the copies and mark which are off-site.
- Find your Lightroom Classic catalogue backup folder, check which drive it is on, and move it if it shares a drive with the catalogue.
- Pick one shoot from last year and restore it from your backup to a new folder. Time how long it takes and check every file opens.
Questions, answered.
Does Lightroom back up my photos?
What is the 3-2-1 backup rule?
Is iCloud or Google Photos a backup?
How long do external hard drives last?
Published by CapturEDU, Melbourne photography education. Our educators are award-winning photographers with a Master of Arts in Photography (RMIT), AIPP and RPS membership.
