Monitoring VSS I/O freeze times


We have hit some limitations with application compatibilities due to VEEAM backups and VSS snapshots cause long I/O freeze times. 

Does anyone have an idea how we might use DPA to monitor this?  Been done before?  

Basically, in order to do it manually, we have to search the SQL logs, get the I/O frozen start time records, find the next I/O resume time records, and diff the time. I'm not sure how or if this could be done in DPA.

Thanks for any help!