Windows policy backup is not running properly

I am using the Netbackup Version 7.6.0.1 & my operating system is Solaris 11. I have one request which i need to add in backup the system was Windows 2008 R2 enterprise & Virtualization has enabled on the system. The backup policy has been configuered with selecting policy type as "MS-Windows" as a regular type policy backup & started backup for all local drives. When backup started the backup is not showing writting but file written is increasing.

I think there might some issue as writting is not active & also i can see the file written is taking time. The client NBU version is 7.6.0.1

Can anybody please take a look & suggest me further.