Hey there,
I've been looking at and testing the Proxmox Backup Server for a little while now, and I do have a few questions.
- When using a pull job to update an external data store, the verify flag appears to be copied over too. A subsequent verify on the external data store will then not verify the just copied chunks, even though they - in my opinion - should be, because you want to verify that the write to the external data store was successful. Can the verify-flag be cleared from the target data store when a snapshot is pulled or pushed?
- Is there a way to determine how much storage a snapshot actually uses? The current metric is the one that "looks most impressive" but is the "least useful" I could have. "Looking impressive" doesn't really help me
When I have a 600GB VM, and see ten snap shots, they say 10x 600GB = 6 TB, which only serves to wow someone ("I only have 1.5TB of storage, but I'm storing 6TB of data there - all with with dedup"). Getting more of a feel much storage a snapshot actually occupies would give me a good impression on how volatile the data on said VM is. I know it's a bit more complicated than that, because the size a snapshot truly occupies changes based on the other snapshots. Anything would be more useful than seeing 10x 600GB though. A useful metric may be "size of chunks used by only this snapshot" and "size of chunks that are shared with at least one other snapshot". Right now the only metric I have is "your VM has a 600GB disk" - which, yea, I know.
I've been looking at and testing the Proxmox Backup Server for a little while now, and I do have a few questions.
- When using a pull job to update an external data store, the verify flag appears to be copied over too. A subsequent verify on the external data store will then not verify the just copied chunks, even though they - in my opinion - should be, because you want to verify that the write to the external data store was successful. Can the verify-flag be cleared from the target data store when a snapshot is pulled or pushed?
- Is there a way to determine how much storage a snapshot actually uses? The current metric is the one that "looks most impressive" but is the "least useful" I could have. "Looking impressive" doesn't really help me
When I have a 600GB VM, and see ten snap shots, they say 10x 600GB = 6 TB, which only serves to wow someone ("I only have 1.5TB of storage, but I'm storing 6TB of data there - all with with dedup"). Getting more of a feel much storage a snapshot actually occupies would give me a good impression on how volatile the data on said VM is. I know it's a bit more complicated than that, because the size a snapshot truly occupies changes based on the other snapshots. Anything would be more useful than seeing 10x 600GB though. A useful metric may be "size of chunks used by only this snapshot" and "size of chunks that are shared with at least one other snapshot". Right now the only metric I have is "your VM has a 600GB disk" - which, yea, I know.