Our company currently has a Domain server, running Windows 2003 SB Edition, which hosts our Exchange database, Sharepoint Services, and an MS SQL server (for sharepoint). We then have have two more servers, which are similar in configuration running Windows 2003 File Server. We have all the shared information being sync'd from one file server to the second to maintain the second one as a backup. We are also going to be purchasing an application server soon. We are concerned about data integrity and downtime. What are the best methods for backing up our domain server for the fastest recovery time? Has anyone had experience with SymantecBackup Exec System Recovery? It offers the ability to restore from a backup to Virual Server. If our domain were to go down, could we setup a virtual server from the domain backup on one of our other servers until our Domain server was operational again? If so, how long would that take? Is there a better solution? Would the same apply to backing up our Application server if it were to go down?