Description of problem: As discussed in several meetings with Josh and Neha we are looking to relax the requirements for block.db size on RBD specific workloads from 4% to 1%. This will be ONLY for RBD and general Openstack workloads (cinder/glance). Please see BlueStore FAQ for details: https://access.redhat.com/articles/3795061 Doc that needs update: https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/3/html/administration_guide/osd-bluestore#sizing-considerations-for-bluestore-management Version-Release number of selected component (if applicable): RHCS 3