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What does the 3-2-1 rule look like for you? (lemm.ee)

submitted 4 days ago by SnootBoop@lemm.ee to c/selfhosted@lemmy.world

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I'm trying to plan a better backup solution for my home server. Right now I'm using Duplicati to back up my 3 external drives, but the backup is staying on-site and on the same kind of media as the original. So, what does your backup setup and workflow look like? Discs at a friend's house? Cloud backup at a commercial provider? Magnetic tape in an underground bunker?

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[–] schmurian@lsmu.schmurian.xyz 1 points 4 days ago (1 children)

3 backups:

phone data is synced to a nvme drive (1) which holds all the data of my homelab
This nvme is backed up to a nvme (2) drive on the same device via backrest
The nvme is also synced via Diplicati to a cloud storage provider (3)

2 locations: home and cloud

1... what was 1 again?

[–] InnerScientist@lemmy.world 2 points 4 days ago (1 children)

Maintain three (3) copies of your data: This includes the original data and at least two copies.
Use two (2) different types of media for storage: Store your data on two distinct forms of media to enhance redundancy.
Keep at least one (1) copy off-site: To ensure data safety, have one backup copy stored in an off-site location, separate from your primary data and on-site backups.

You have 3 copies, one on your phone and nvme, one on the backup nvme and one in the cloud. You have 2 media, internal SSD and cloud (your phone would count as a third if it wasn't auto synced) You have 1 off-site in the cloud

[–] Railcar8095@lemm.ee 3 points 4 days ago (1 children)

I might be the weird one, but I never consider the phone copy as valid for 321. I have so many photos that they don't fit, so most are already not there anymore.

Server/htpc + desktop (with delay, I turn it on sparsely) + b2

[–] InnerScientist@lemmy.world 1 points 4 days ago

I didn't consider it as valid, one on (phone and internal nvme1), the second one on nvme2 and the third one in the cloud.

Though I have only two copies of normal data myself, I consider live and cloud to be enough for most data. Everything very important has more backups in other ways (bitwarden has an exportable local version on every logged in device, images are stored in immich on my server making it 3 devices)