DPM 2012 R2, Windows 2012 R2, and "stop" VM during backup

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i did upgrade dpm 2012 sp1 to 2012 r2.
dmp backup the server with hyper-v machines, windows / linux.

the previous version of windows, as did backup via partition shapshot not stop its operation.
current unfortunately it does!

during backup closes all connections to virtual machine, start the copy and return connections.
hyper-v also shows the beginning of a new machine to count on time as if they held the restart (even though it was not).

as every change / off?
going the previous version?

backup group i created again - does not help.

after many attempts found a barely noticeable eventlog message:
"the virtual machine 'x' can not be hot backed up since it has no scsi controllers attached."
i added the "empty" scsi device and suddenly the backup started to work.
thanks all for help!

scsi device is needed for vm with windows 2012 r2
other vm can repair themselves without device.


Windows Server  >  Hyper-V



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