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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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[–] jlh@lemmy.jlh.name 4 points 3 days ago* (last edited 3 days ago)

All storage is on a Ceph cluster with 2 or 3 disk/node replication. Files and databases are backed up using Velero and Barman to S3-compatible storage on the same cluster for versioning. Every night, those S3 buckets are synced and encrypted using rclone to a 10tb Hetzner Storage Box that keeps weekly snapshots.

Config files in my git repo:

https://codeberg.org/jlh/h5b/src/branch/main/argo/external_applications/velero-helm.yaml

https://codeberg.org/jlh/h5b/src/branch/main/argo/custom_applications/bitwarden/database.yaml

https://codeberg.org/jlh/h5b/src/branch/main/argo/custom_applications/backups

https://codeberg.org/jlh/h5b/src/branch/main/argo/custom_applications/rook-ceph

Bit more than 3 copies, but hdd storage is cheap. Majority of my storage is Jellyfin anyways, which doesn't get backed up.

I'm working on setting up some small nvme nodes for the ceph cluster, which will allow me to move my nextcloud from hdd storage into its own S3 bucket with 4+2 erasure coding (aka raid 6). That will make it much faster and also its cut raw storage usage from 4x to 1.5x usable capacity