Description of problem: It would be required for upcoming CNS features that existing files on hosting volume be exported as a gluster block device. There should be an option to specify file path instead of providing the size of the block volume in a gluster-block create command. This way we can import existing files. In such a case, it is also required that gluster-block provides a mechanism to only unexport a block volume without deleting the file from hosting volume.
Created attachment 1420790 [details] Sanity check logs
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2018:2691