In a traditional desktop model, an antivirus agent is installed, runs on every desktop, and is responsible for the performance of antivirus detection scans, while maintaining and updating the definition files containing information about the latest malware.
This model works well in the physical desktop world, but presents some challenges when running in a virtual desktop environment. When a detection scan starts, every virtual desktop's resource usage will increase significantly. This will result in end user performance degradation, and the desktop host server will become resource-bound. That's fine on a physical desktop, but now, in VDI, it's the servers hosting the desktops that are going to become resource-bound. When recomposing desktops or building them on demand, the desktops will have to download the definitions file...
