Hi,
I managed to mess up the cache pool on an erasure coded cephfs:
- I split pgs on the cache pool, and got a stray/unknown pg somehow
- added a second cache pool in the hopes that I'll be allowed to remove the first, broken one
- and now have two broken/misconfigured cache pools and no working cephfs, neither of which I'm allowed to remove
I do not currently have the resources to set up a test cluster to try this out first, and more than one cephfs seems to be an experimental feature. But the data isn't crazy important, so:
Can I delete a cephfs and recreate it with the contents intact just by using the same data/metadata pools as before?
My gut says, I'll be ok, but are there any gotchas?
I could also resolve this by removing the cache/overlay tiers on that pool and add a newly created one, but this seems to be impossible/prohibited.
I'd be very grateful for any pointers!
cheers,
Philip
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