For Migrate VMs from 2008 R2 to 2012R2, you can refer below links
Hi Joseph,
Have you made sure that the Backup-feature is enabled in the intergrationfeatures of the 2008 R2 VMs?
Also, is there a SCSI-controller attached to the VMs? (Might be what you are referring to as "SCSI driver installed".)
Hi,
there are a lot of reasons for offline backup.
In Your Case i think your are using a old Version of Integration Services in der 2008 R2 VM's
so please update IS, remove VM Backup from DPM and add backup again.
Here you can find a lot more: https://translate.google.at/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.techguy.at%2F11-gruende-fuer-backup-using-saved-state-im-scdpm%2F&edit-text=&act=url