Where does the Virtual OS run?
With everRun FT , the virtual OS runs on each CoServer simultaneously and in lockstep to ensure both physical servers are completely synchronized, including CPU, memory, I/O, and disk. With everRun HA , the virtual OS runs on just one of the CoServers at any given time, however it has a fully mirrored copy on the other CoServer. Should the active CoServer suffer a complete failure, the virtual environment will immediately start on the standby server. With either product, the virtual OS appears as a single Windows environment to administrators and users.
