The 3PAR drivers had to wait while the clone was being performed
and this would take a considerable amount of time for large volumes.
This patch takes advantage of the 3PAR backend by using the -online
option in the command that we were calling to perform the copy. This
allows us to remove the sleep in the driver. Using the -online
option forced us to change some of the delete_volume code because
the 3PAR backend will not allow a volume that was copied to be added
to a virtual volume set.
Code Review / openstack-build / cinder-build.git / commit