I guess this is something businesses operating a digital signage network should think about. In the past, experiencing a hard-drive failure can be quite devasting and often quite expensive if you count the number of hours it would take to reproduce the same content. From the top of my head, I could only come up with several ways of backing up the content and these are:
1. Centralise and store the content onto a dedicated server with RAID configuration harddrives. In addition to this, have the files scheduled to be copied to an external storage such as a USB external HHD.
2. If you cannot afford a dedicated server, have the harddrives on the digital signage player set up in a RAID configuration – most operating systems are able to have this function but it will mean have at least two physical hard drives. Otherwise you could always copy the files onto an external medium (CD, DVD, Memory card, HHD, etc).
3. Have files distributed across multiple servers or across an external site (e.g. data center)
For those techies out there, what is the best backup strategy?
Feel free to submit your answer as a comment.