[PATCH v2] rbd: Use RBD fast-diff for querying actual allocation

Since Ceph version Infernalis (9.2.0) the new fast-diff mechanism of RBD allows for querying actual rbd image usage. Prior to this version there was no easy and fast way to query how much allocation a RBD image had inside a Ceph cluster. To use the fast-diff feature it needs to be enabled per RBD

Re: [PATCH v2] rbd: Use RBD fast-diff for querying actual allocation

ping ? On 6/11/20, Yi Li wrote: > Since Ceph version Infernalis (9.2.0) the new fast-diff mechanism > of RBD allows for querying actual rbd image usage. > > Prior to this version there was no easy and fast way to query how > much allocation a RBD image had inside a Ceph cluster. > > To use the fa