Description of problem:
The Block Device Guide in its layering chapter mentions in a note that RBD Layering is not supported via kRBD.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
The documentation shows:
"Ceph only supports cloning for format 2 images (created with rbd create --image-format 2), and is not yet supported by the kernel rbd module. So you MUST use QEMU/KVM or librbd directly to access clones in the current release."
With a 7.4 distribution you can actually create and map a format 2 RBD Image with the layering feature enabled.
I believe this note should be removed or reworded and become OS distro specific.
Level setting the severity of this defect to "High" with a bulk update. Pls
refine it to a more closure value, as defined by the severity definition in