This bug was initially created as a copy of Bug #1728321 Support for the Cinder multi-attach feature in the RBD driver.
*** Bug 1730094 has been marked as a duplicate of this bug. ***
Worth noting that this BZ is only meant to support the 13 backport - RBD multi attach is NOT supported on OSP14. OSP13 support with support exception _only_ Full support OSP16
Awaiting newer build, insufficient to verify: 14 -p 2019-09-06.1 openstack-cinder-13.0.5-5.el7ost.noarch < fixed-in
Tested on openstack-cinder-13.0.5-7.el7ost.noarch Manually ran test plan looking fine.
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/RHBA-2019:3749