Verified on vdsm-4.14.18-2.el6ev.x86_64 Run 16 vms with guest-agent and with OS rhel6.5, vdsClient -s 0 getAllVmStats show all information for 16 vms also after restart.
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://rhn.redhat.com/errata/RHBA-2014-1946.html