Basically title. I’m in the process of setting up a proper backup for my configured containers on Unraid and I’m wondering how often I should run my backup script. Right now, I have a cron job set to run on Monday and Friday nights, is this too frequent? Whats your schedule and do you strictly backup your appdata (container configs), or is there other data you include in your backups?
Proxmox servers are mirrored zpools, not that RAID is a backup. Replication between Proxmox servers every 15 minutes for HA guests, hourly for less critical guests. Full backups with PBS at 5AM and 7PM, 2 sets apiece with one set that goes off site and is rotated weekly. Differential replication every day to zfs.rent. I keep 30 dailies, 12 weeklys, 24 monthly and infinite annuals.
Periodic test restores of all backups at various granularities at least monthly or whenever I’m bored or fuck something up.
Yes, former sysadmin.
This is very similar to how I run mine, except that I use Ceph instead of ZFS. Nightly backups of the CephFS data with Duplicati, followed by staggered nightly backups for all VMs and containers to a PBS VM on a the NAS. File backups from unraid get sent up to CrashPlan.
Slightly fewer retention points to cut down on overall storage, and a similar test pattern.
Yes, current sysadmin.
I would like to play with ceph but I don’t have a lot of spare equipment anymore, and I understand ZFS pretty well, and trust it. Maybe the next cluster upgrade if I ever do another one.
And I have an almost unhealthy paranoia after see so many shitshows in my career, so having a pile of copies just helps me sleep at night. The day I have to delve into the last layer is the day I build another layer, but that hasn’t happened recently. PBS dedup is pretty damn good so it’s not much extra to keep a lot of copies.