We have a namespace on PBS where our Proxmox users can put « manual backups », this is backups they want to do before for example starting an upgrade or for any use they need (please note that our current main storage do not support snapshots). Currently there is no prune job on this namespace so it is only growing. Is there a way a prune job can be configured to delete say backups older than 3 months? I can't figure how to do that with the options of the prune jobs.
Retention based on age of backup
- Thread starter tlaunay
- Start date
One uses a pruning job, to remove old chunks and hence old backups. Then a garbage collection job to delete them. Prune jobs can be limited by namespace.
https://pbs.proxmox.com/docs/maintenance.html
You could for instance "Keep Daily = 91"?
https://pbs.proxmox.com/docs/maintenance.html
You could for instance "Keep Daily = 91"?
You might be also interested in the Prune Simulator: https://pbs.proxmox.com/docs/prune-simulator/index.html
This makes it easy to play around with and visualize different prune settings
This makes it easy to play around with and visualize different prune settings
Apparently there is no way to achieve this goal (pruning backups older than 3 months) with the tools provided in the web interface. "Keep Daily = 91" do not work (it keeps 91 daily backups), I've also tried "Keep Monthly=1" but this will keep 1 monthly backup, even if the backup is multiple months old.
The good way to do this seems to be scripting. Writing a script listing the backups older than n months is relatively easy, I have now to figure how to pipe this to the CLI (proxmox-backup-client snapshot forget <snapshot> seems to be a good candidate).
The good way to do this seems to be scripting. Writing a script listing the backups older than n months is relatively easy, I have now to figure how to pipe this to the CLI (proxmox-backup-client snapshot forget <snapshot> seems to be a good candidate).
The backup pruning is additive for lack of a better term. If you set 91 daily and 1 monthly you'll get 91 backups and then the last one of the month ending before that.
Or put another way, if you set "last 10" and then 5 daily (and don't run any extras) you'll end up with 15 daily backups.
Or put another way, if you set "last 10" and then 5 daily (and don't run any extras) you'll end up with 15 daily backups.
