NAS High Availability Introduction by Eli the Computer Guy

[embed][/embed] High Availability is a technology that allows for near zero downtime when a server completely fails. Two servers are paired as identical copies of each other and when one fails the other server takes over automatically. This technology is used to be available only in high end, very expensive equipment. Now many less expensive NAS units support this technology which allows you to give small environments a level of server reliability that they could not get before.