The 3-2-1 Backup System: My Low-Tech Security Blanket (Minus the Forbidden Words)

So the other day, while I was reorganizing my digital life—meaning, dragging random screenshots into folders I will absolutely forget about—I had one of those tiny zings of panic. You know the one. The “Oh no, what if my computer decides today is the day to go belly-up?” feeling. My laptop fans made a noise that sounded like an aging walrus, and suddenly I was imagining years of writing, photos, tax documents, and that one recipe for maple-glazed tofu disappearing into the digital ether.
And because we’re just starting off a new year (the season of fresh planners and good intentions), I figured it’s actually not a terrible moment to get serious about backups. Like, real backups. Not the dragging everything to a USB drive once every three years and calling it good kind.
I’m talking about the 3-2-1 Backup System, the method nerds, creatives, and people who’ve lived through catastrophic hard-drive failure preach with the enthusiasm of someone who has seen things.
So…What Exactly Is the 3-2-1 Method?
It’s basically a simple formula that sounds more complicated than it is:
3 copies of your data
Not one. Not two. Three.
Your original + two backups.
This is the part where people usually blink slowly at me like, “Do I look like someone who has three versions of anything besides screenshots of my cat?” But stick with me.
2 different types of storage
This means you shouldn’t rely on only one format.
For example:
- Your computer
- An external hard drive
- A cloud service
Pick at least two kinds, like one physical and one cloud-based. Don’t put everything in the same basket unless that basket is fire-proof, water-proof, pet-proof, and mythological.
1 copy stored offsite
This could be a cloud backup or a drive you leave at your sister’s house. I know that feels very spy-movie, like you’re delivering a mysterious encrypted device only you can access, but it works. The main idea is: if something happens at home—flood, fire, spilled latte, rogue cat—you still have a version somewhere else.
That’s it. That’s the whole recipe. No incense or chanting required.
☕ How I Implement This at Home (AKA: Roger’s Semi-Functional System)
Let me walk you through what this looks like in actual life, not in the fantasy world where I’m perfectly organized and label all my drives with cute stickers.
1. The Original Copy
This is just…your main working device. Laptop, desktop, tablet, whatever you create or store things on. Mine is my MacBook, which I treat better than some relatives.
2. The External Hard Drive
I have a small stack of external SSDs (they’re fast and don’t make that whirring noise that sounds like a tiny gremlin trying to escape).
Because I’m on a Mac, I have an SSD drive connected to my laptop which constantly backs up my data to Time Machine (it’s a Mac thingie).
I also have an SSD drive that I plug one in once a week—usually Sunday morning while coffee is brewing—and let my backup software do it’s thing (I use Carbon Copy Cloner). It takes maybe ten minutes and makes me feel like a responsible adult.
If you’re not on a Mac, there are tons of backup apps that do automatic scheduled backups to an external drive. Pick one. Any one. Just…pick one before something dramatic happens.
3. The Cloud Copy
I use a cloud backup service because, frankly, I don’t trust myself to remember to carry a backup drive to another location like some wandering monk.
Cloud backups are the “offsite” part of the 3-2-1 rule because the servers are somewhere else—usually far, far away from wherever your coffee mug is sitting.
Some people use iCloud, Dropbox, Google Drive, Backblaze, pCloud—whatever fits your budget and how much digital clutter you produce. (Writers produce a lot. We hoard versions of drafts like dragons guard jewels.)
Now some people state that Google Drive isn’t private, that Dropbox can’t be trusted, etc. Truth be told, it doesn’t really matter because you’re want to encrypt your data before saving it to a Cloud drive (see my post on using Cryptomator). I never trust my raw data to any cloud provider — I always encrypt it first before uploading.
Cloud backup is the easiest part because it’s fully automatic. I love anything that does its job while I’m asleep or scrolling through TikTok.
🎧 Implementing This at Home Without Losing Your Mind
If the whole thing still sounds like too much, here’s a simple starter version:
- Buy one external SSD.
- Sign up for one cloud backup service.
- Let both run automatically.
- Reward yourself with something sweet for being a functional human.
Seriously, that’s enough. You can get fancy later.
But—and I’m saying this with love—your future self will adore you for setting this up now instead of “when I have time,” which is code for never. Especially since we’re tiptoeing toward a new year, and it’s the season where everyone pretends they’re going to get their life together. This is one goal you can actually hit with very little effort. You set it up once, and then you relax knowing your digital treasures are safe.
Imagine typing away on your next book or sorting through holiday photos and not having that little whisper of doom in the back of your head. It’s honestly kind of freeing.
Why Now? Because January You Deserves a Break
Look, new-year energy is infectious. Even if we all know resolutions tend to evaporate by February, backup systems don’t require ongoing willpower. You just set them up, flip a metaphorical switch, and boom—you’re protected.
Plus, is there anything more demoralizing than starting the new year by losing your files? I’ve been there. I still twitch thinking about the time I lost half a novel draft in 2013. I had to rewrite entire chapters from memory, which is never as noble or romantic as it sounds.
Give Future You a gift.
Implement the 3-2-1 system now.
Then brag about it to your friends like you’ve achieved inner peace.

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Bonjour, mes amis! 🇫🇷