The call to protect corporate data in less time and for less money has inspired a whole new way of thinking about backup - a complete backup redesign. Rather than relying on tape and focusing on data, new technology utilizes disk space and focuses on applications. Think about it, if a server crashes or a server room floods, end-users need fast access to restored applications, application states, and application data.

This paper explores a better way to backup and protect data and applications. Rather than backing up once a day or once a week and storing data on tape, disk-based application protection programs run continuously, taking snapshots and copying only changed blocks to a server.