Backing up costs money. Casually deciding that everything on every system will get backed up every night will cause costs to soar as new storage for backups must be purchased, and the need for network bandwidth increases. At the same time, backing up too little on a system will cause problems when files that were [...]

Choosing Backup Methods
There are various accepted methods of performing backups. Nowadays, rarely does one size fit all. You can combine each of these methods, or apply different methods to different classes of data, to achieve the best overall solution.
Perhaps some data is ideal for offsite into-the-cloud backup, while other data requires tape as a destination. [...]