chkdsk /r on a SQL server

Hi Everyone, 

I was just curious if it is safe to run chkdsk /r on a drive that holds an active SQL db? This is a SQL Server running on a VM. I was told to run the chkdsk command by an Acronis support technician, because their backup software is telling me that there are errors on the drive. Yet all the other VM backups are working just fine and they are all running on the same host. The SQL server itself runs perfectly without any issues and is a production server. 

It may be worth mentioning that this server used to be a physical machine and was converted to VM using  Disk2vhd.

Thanks!