Ceph - rbd feature enable fails with "cannot update immutable features"
Issue
We have disabled some features on rbd image, when trying to enable them again, we are getting error:
# rbd feature enable rbd/myimage deep-flatten
rbd: failed to update image features: (22) Invalid argument
2020-09-18 08:47:19.825 7f822fe60b00 -1 librbd::Operations: cannot update immutable features
Environment
Red Hat Ceph Storage
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