i have lot of issues with vdp overally.
VDP checkpoint out of date
service troubles
java consuming lot ressources
often connectivity errors - need to restart Tomcat
Even with 6.x versions.
and today for any reason without any message vdp lost more then 100vms in the backup job.
To avoid expand problems - i choosed bigger Size on Deployment and did Thin provisioning.
Painfully. But yeah its free ha
best regards