Supi_Du wrote:3 VM's: Win7,Srv08R2, Srv2012. all just a fresh install. Thin Disks.
Single 2008R2 VM Backup:
Vranger7 : 4GB
So these results looked somewhat suspicious to me, and I've asked our QC to perform the exact same test: backup fresh install of Server 2008R2. No extra steps such as drive cleanup or anything - literally just install OS, logon for the first time, and perform the backup.
This test resulted in 3.2GB
backup file (with "High" compression). I have no idea why you are seeing almost 3x larger backups in your testing...