[pbs-devel] Status of Garbage Collection marks in memory (not atime based)

[Dietmar Maurer]

> We use a CephFS as datastore in our test environment and this is rather slow because of the metadata updates. The in-memory based approach could possibly make a huge difference for CephFS based datastores.

Besides, Proxmox Backup is designed to work with local storage. 
Using any Network based storage create a big amount of additional network 
traffic, and makes no real sense to me. You want(should) backup your Cepfs data 
to Proxmox Backup, not the other way around.