What happens to the data from a failed volume move to ceph?


New Member
Aug 20, 2023
Hi there,

I am playing with Ceph and a three node cluster for learning.

I have a 4TB turnkey filestore container using ZFS storage on one node. I have been moving its volume into a new Ceph pool. This move failed the first couple of times, partly due to me not providing enough space and partly due to finding bad ram in a newly acquired node.

What happens to the TB or so of data that was transferred to the ceph pool from the first failed moves? Is it still there and now just taking up space and not associated with anything? Can I see it in the pool somehow?

I don't need to access any of the data. I'm more interested in if I've got useless partial copies still in the pool, or if this data has been reused by the latest volume move somehow.

Thank you.
Last edited:
Having moved all of the VMs and containers off of the ceph pool, there is still terabytes of data on there. So the answer to my question is that it seems that the data stays in the pool. Ceph continues to try to maintain that data in a healthy state, keeping it replicated between the various hosts etc.


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