The 3-2-1 Backup Plan — In Plain English
Last verified: August 2026
Three copies. Two kinds of storage. One off-site. The boring rule that would have saved twenty years of photos — explained for normal humans, with the exact products Bill installs.
The hardest call I take
The phone call I dread is the one that starts "Bill, I think my computer died." Usually the computer's fine — it's an old hard drive, or a corrupt SSD, or a laptop that took one too many trips off the kitchen counter. The fix is straightforward. The hard part is the next question: "Do you have a backup?" Nine times out of ten, the answer is some version of "I think so?"
"I think so" is not a backup plan. The 3-2-1 rule is. It's old, it's boring, it's used by IT departments at hospitals and law firms, and it works for normal humans too. Three copies of every important file. Two different kinds of storage. One copy somewhere else. The 25-page PDF walks through what each piece looks like for a regular household, with specific products and prices.
The 3-2-1 rule, in one sentence each
- 3 copies. The original plus two backups. If only one of the three fails — even at the same time — you still have a working copy.
- 2 different kinds of storage. Don't put both backups on USB drives in the same drawer. Use a mix — a cloud service plus a physical drive, for example. Different mediums fail differently.
- 1 copy off-site. If the house burns down or floods or gets robbed, the local backup goes with everything else. The off-site copy is the one that survives.
What 3-2-1 looks like for a normal household
- Copy #1 — the original. Your photos on your iPhone. Your tax returns on your laptop. Your contacts in Gmail. That's "Copy 1" — you didn't have to do anything for it.
- Copy #2 — a cloud backup. iCloud Photos for the phone. Google Drive or OneDrive for the documents. Backblaze for the whole computer. Different services for different things — and ideally not the same company that already owns Copy 1.
- Copy #3 — a local drive. Time Machine on a Mac, an external SSD plugged into your Windows PC, or a small NAS in the closet. Fast, no monthly fee, and if the internet's out you can still get to your stuff.
What's in the 27-page PDF
- Why "I have iCloud" is not the same as having a backup (and what to add).
- The 5-minute backup audit — what you're already doing, what you're missing.
- iCloud, Google One, OneDrive, Dropbox — what each one actually backs up.
- Setting up Time Machine on a Mac (one cable, one drive, one click).
- Setting up Windows File History or a third-party tool on a PC.
- External SSD recommendations — sizes, brands, and what's enough for a couple's photos.
- Backblaze — the off-site cloud backup Bill installs on most customers' computers. $9/month per computer, unlimited.
- Synology and UGREEN NAS — the closet-sized server option for serious photo libraries.
- How to back up a phone (iPhone and Android both).
- Photos: the special case. Why "I have my photos on Facebook" is not a backup. Apple Photos vs. Google Photos vs. Amazon Photos.
- Documents, tax returns, scans — the paper trail.
- The "annual restore test" — making sure your backup actually works.
- What to do if you've already lost something — recovery options.
- For seniors: the version of 3-2-1 that doesn't require thinking about it.
- For families with kids: the photo-organization plan.
- Backup for ransomware — why 3-2-1 saves you here too.
- Where to store the off-site copy: a safe deposit box, a relative's house, the cloud.
- Bill's exact home-office backup setup (yes, including the cost).
- Backup checklist — print it, tape it to the inside of the desk drawer.
Why I wrote this
A customer in Garrettsville lost twenty years of family photos last fall when her external drive — the only backup she had — failed three weeks after her Mac's SSD did. Twenty years. Grandbabies, vacations, the dog they had before the dog they have now. We tried two recovery services. One quoted $1,800 with no guarantee. The other politely declined. Both told us if there'd been a second backup anywhere — iCloud, Google Photos, a Backblaze account, a second drive — we'd have had the photos back in an hour.
That visit is the reason this guide exists. The 3-2-1 plan costs about $15 a month for a typical household and it would have prevented the whole thing. No ads, no affiliate links, no fluff. Just what I'd want my own mom to know. — Bill
Want me to set up 3-2-1 for you?
I'll come install Backblaze, set up Time Machine or File History, plug in an external SSD, and walk you through how it all works. $99 flat. 30-day come-back-free guarantee.
Would you rather I just do this for you?
No shame in it — plenty of folks would rather hand it off, and that's what I'm here for. I'll come to your home, set it up right, and make sure it's working before I leave. Flat $99 per visit — no jargon, no upsell, and every visit is 30-day come-back-free.
Not a hardware job? I can often fix it remotely for $49 — a secure screen-share, up to 2 hours, that you watch the whole time and can end whenever (included free for $39/mo Support Plan members, and it counts toward the $99 if it turns out I need to come out).