4.20. cmirror

Prior to this update, cmirror could become suspended with the pvmove command on a segmented volume when attempting to connect to the checkpoint service. With this update, cmirror uses a finite number of retries when connecting to the checkpoint service and no longer becomes suspended.

Prior to this update, the cmirror init script was by default switched on after the RPM installation, while all the other cluster init scripts were switched off. With this update, the cmirror init script is by default switched off.