David B Little, «Implementing Backup and Recovery: The Readiness Guide for the Enterprise»(repost)

Arm yourself with all the information you need to architect a backup and recovery system. System backup is essential in any enterprise–protecting data is equivalent to protecting the company or agency. Whether you have the task of putting together a backup and recovery system for your organization or you are thinking about how backup and recovery fits within the scope of total data availability, Implementing Backup and Recovery is an invaluable resource.