Ceph - Permissions for user to access pool created successfully but still unable to access pool when using cache tiering

Issue

• A user is created with 'rwx' permissions to access a data pool. The user and key-ring are generated successfully via the 'ceph auth add' comamnd yet the user is still unable to access the data pool successfully.
• When attempting to access the data pool the following is reported (in this example RBD is being used):

[root@ceph]# rbd ls -p rbd-cinder-pool-1 --id cinder-user-1
rbd: list: (1) Operation not permitted

• The keyring was verified and the auth list shows proper 'rwx' access to the data pool.