snapshotting disk images with exchange db / volumes

[Marc Roos]

I have been asking at technet about if I could snapshot an exchange db 
volume[1]. But it looks like that windows server backup is sort of doing 
the same. Creating vs image, and backup that one. However they truncated 
the exchange db log files after a succesful procedure. 

I was wondering if someone is doing this already. How does the guest 
freeze work exactly in windows (In linux it is quite clear no io is 
done). I assume that if the guest is invoking the vss service, and then 
you snapshot on the host environment. You have a snapshot with a vss 
image? So if you want to recover, you first need to 'roll back' to that 
internal vss image on the snapshot?


[1]
https://social.technet.microsoft.com/Forums/office/en-US/7818e7a5-3c09-4f36-9158-e423d0c0a705/mailbox-database-disk-snapshot?forum=Exch2016GD

https://social.technet.microsoft.com/Forums/office/en-US/922ff22a-73d6-4b86-b718-b6300754a467/wsbexchangeexe-how-to-use-how-does-it-work-with-wbadmin-and-vssfull-fixing-external?forum=Exch2016GD