What filesystem to use for local backups?

Hi, Fairly new to Proxmox. Came from a Xen installation on LVM, and I set up my own backup scripts on that which would snapshot LVM volumes, then copy onto another physical disk on same machine, for the local backups. I always used LVM with non-thin volumes.

So I opted to stick with LVM for my Proxmox setup, since I already know it.

I have read that LVM-thin can be prone to failures if a machine is terminated suddenly. Maybe its something to do with the way meta-data is held separately in...

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