Most data loss stories start the same way: “I was going to back it up that night.” A good backup routine isn’t about expensive equipment. It’s about doing the same few steps after every single wedding, without exceptions.
What the 3-2-1 rule means for wedding footage backup
- 3 copies: the original plus two backups.
- 2 types of storage: for example, an external SSD and a hard drive, or a drive and cloud storage.
- 1 copy off-site: stored somewhere a fire, flood or burglary at your studio can’t reach.
The US Chamber of Commerce describes the rule this way in its guidance for small businesses. Its strength is that no single event, such as a drive failure, theft or a house fire, can take out every copy at once.
The newer version: 3-2-1-1-0
The same US Chamber guide also describes an extended version called 3-2-1-1-0. The extra “1” is one copy that can’t be changed: an immutable cloud backup, or an offline copy that can’t be reached from the internet. The “0” means zero errors when you restore, which you only know by verifying backups and testing restores.
For a wedding filmmaker, that translates into two extra habits: keep one backup disconnected or locked, and check that you can get footage back. Both are covered below.
How often do drives really fail?
Backblaze, which publishes failure data from its cloud storage fleet, monitored 349,462 hard drives at the end of 2025. Across the 344,196 drives it analysed, the annualized failure rate was 1.36%, down from 1.55% in 2024, with a lifetime rate of 1.30%.
That sounds small until you multiply it. A studio with ten drives in regular use has a real chance of losing one in any given year. And failure isn’t the only risk: cards get corrupted, laptops get stolen, and ransomware can encrypt every drive connected to a computer.
A worked example
Here is the arithmetic, using Backblaze’s 2025 rate and assuming each drive fails independently:
- One drive, one year: about a 1.4% chance of failure.
- Ten drives, one year: about a 13% chance that at least one fails.
- Ten drives, five years: close to a 50% chance that at least one fails.
Backblaze’s figures come from data-centre drives running in controlled conditions. Portable drives that travel to venues, get knocked in a bag and sit in hot cars face extra risks those numbers don’t capture. Treat the figures as a floor, not a ceiling, when you plan your wedding footage backup. The point isn’t the exact percentage. It’s that over a few seasons, a drive failure is something to plan for, not something that happens to other people.
A practical wedding-day backup workflow
Don’t format cards on the day
Treat your memory cards as copy number one until backups are done.
Copy to two drives the same night
For example, your working SSD and a separate backup hard drive.
Verify the copy
Use software that checks the copy matches the source, or spot-check clips from each card.
Start the off-site copy
Upload to cloud backup, or take a drive to a second location within days.
Only then format the cards
Now you have three copies, on two types of storage, with one off-site.
Keep everything until delivery is approved
Including the footage you sent to an outside editor.
If you shoot with a second shooter, add one step: collect their cards or a copy of their footage before anyone leaves the venue, or agree in writing exactly when they will hand it over. Footage on someone else’s card isn’t part of your backup yet.
On the way home, keep the cards and the backup drive in different bags. If one bag is lost or stolen, the other still holds a full copy. The same logic applies at home: until the off-site copy exists, store the backup drive away from your editing desk.
How to verify a copy before you format
A copy that finished without an error message isn’t the same as a copy you’ve checked. Files can be skipped, a cable can drop out, or a card reader can fail halfway through. Verification is the step that turns “I think it copied” into “I know it copied”.
Use offload software with checksum verification
These tools compare each copied file against the original and flag any that don’t match.
Compare totals
Check that the number of files and the total size on each backup match the card.
Spot-check footage
Open a clip from the start, middle and end of each card and scrub through it.
Check audio separately
External recorders are easy to forget, and missing vows can’t be recovered from video.
Write it down
A simple log with the date, cards copied and drives used helps you and your team see what’s been done.
Storage options compared
General guidance. Storage prices have risen sharply in 2026, so compare current prices before buying. See our 2026 editing workstation cost guide.
A NAS is a great tool, but it doesn’t count as off-site if it sits in the same building as your other copies. Ransomware can also reach any drive or NAS that stays connected, so keep at least one copy disconnected or versioned in the cloud.
What to check in a cloud backup service
Cloud backup is the easiest way to get an automatic off-site copy, but the details matter. As an example, Backblaze lists its Computer Backup plan at $99 a year for unlimited data, including connected external drives. By default it keeps a 30-day version history, with one-year or “Forever” retention as options. Backblaze also says data from external drives disconnected for more than 30 days is kept on its servers but no longer appears in the current backup view.
Whichever service you use, check four things: whether external drives are included, how long deleted or changed files are kept, how you restore a large project (download or a shipped drive), and whether the account has two-step verification turned on.
How much storage you need: a worked example
Storage needs depend on your cameras, codecs and how many angles you shoot, so measure your own weddings. Here is an example with simple numbers to show how to plan.
- Footage per wedding: say 500 GB across all cameras, drone and audio.
- Weddings per season: say 30.
- Raw footage per season: 500 GB × 30 = 15 TB.
- Copies needed: under 3-2-1, the working copy plus two backups, so each copy needs room for 15 TB.
- What that means: about 45 TB of total capacity across working drives, backup drives and off-site storage, before archives from earlier years.
Cards drop out of the count once they’re formatted, so the working drive takes over as one of the three copies. Many studios reduce long-term storage by archiving a selects folder instead of every clip once the film is delivered. Whatever you decide, write it into your client contract.
Upload time matters too. One gigabyte is 8,000 megabits, so a 500 GB wedding on a 100 Mbps upload connection takes roughly 11 hours. That’s fine overnight, but it’s why many filmmakers keep a rotated off-site drive as well as, or instead of, cloud backup.
Protecting your backups from ransomware
Ransomware is a reason to think about how your backups are connected, not just how many you have. The US #StopRansomware Guide from CISA, the FBI, the NSA and MS-ISAC tells organisations to “maintain offline, encrypted backups of critical data, and regularly test the availability and integrity of backups”. It explains why: many ransomware variants try to find and delete or encrypt backups they can reach.
The UK’s National Cyber Security Centre gives the same advice in plainer terms for small organisations. A backup drive should not stay connected to your computer when you’re not using it, because some viruses also affect devices connected to an infected computer. The NCSC suggests using both an online backup and a storage device, giving you two backups.
Unplug backup drives after each backup
A drive in a drawer can’t be encrypted by malware on your editing machine.
Use version history in the cloud
If files are encrypted and then synced, older versions let you roll back.
Consider immutable storage
CISA notes some cloud providers offer storage that can’t be changed once written.
Protect the backup account
Turn on two-step verification so a stolen password can’t be used to delete your backups.
Watch for phishing
Many infections start with an email. See our guide to phishing scams targeting wedding videographers.
How to test a restore
The US Chamber guide recommends testing restores about every three months, and the NCSC stresses that you need to know how to restore your data and check it contains everything important. For a filmmaker, a restore test takes under an hour.
Pick a past wedding
Choose one from a few months ago, not the newest.
Restore it to a spare drive
Use your off-site copy, whether that’s a cloud download or the rotated drive.
Open the project
Relink the media and play through the timeline. Missing files show up quickly.
Time it
Note how long the restore took. If a full wedding would take days to download, you know to keep a physical off-site copy too.
Fix what you find
Update your routine if anything was missing, then test again next quarter.
Archiving finished wedding films
- Decide what to keep: final exports, project files and either all raw footage or a selects archive. Write it into your contract.
- Label clearly: date, couple’s names and a simple index of which drive holds what.
- Keep two archive copies, one off-site, even for older weddings.
- Check archive drives yearly. Drives that sit unused for years can fail to spin up.
- Tell clients your retention period, so they know when to keep their own copy safe.
If you outsource editing, follow the same rule with your partner: keep your own originals, and get project files back when the film is approved. Read how to keep client footage safe when you outsource editing, or see how to outsource wedding video editing step by step.
Common backup mistakes
- Counting a sync folder as a backup. Sync copies deletions and encrypted files too. Make sure version history is on.
- Keeping every copy in one place. Two drives on the same desk count as one location.
- Leaving backup drives plugged in. Malware can reach any connected drive.
- Formatting cards before verifying. Until copies are checked, the cards are your safest copy.
- Treating the editor’s copy as a backup. Footage you send to an editor can be changed or deleted at their end.
- Never testing. Most people find out their backup was incomplete on the day they need it.
Common questions
Sources: Backblaze, “Backblaze Drive Stats for 2025” (12 February 2026); US Chamber of Commerce, “What Is the 3-2-1 Backup Rule, and How Does It Work In the Cloud?” (2 October 2025); CISA, FBI, NSA and MS-ISAC, #StopRansomware Guide (September 2023); National Cyber Security Centre, Small organisations guide to cyber security, “Backing up your data” (9 April 2026, reviewed 21 July 2026); Backblaze, Computer Backup pricing page and “Version History FAQ” (accessed October 2026).
