Content Replication Enterprise and xSP CDNs can use the hub and spoke model to leverage existing infrastructure. Content staged on Filers at the origin web site can be SnapMirrored to Filers that provide back-end storage to replicated web sites. Web site replicas can be located at Hubs at geographically diverse locations. Back-end databases stored on Filers can be separated into static and transactional components and the static database can be replicated. SnapMirror in Filers can be used for full replication of code, content and databases.
Replication brings content closer to the user by redirection to the closest replica.
Users can be redirected to an alternate replica for disaster recovery from loss of primary site connectivity. Content Distribution Content Director can be used to fully automate content distribution from central staging servers to local and remote web servers and NetCaches. Policy based content delivery can be used to pre-populate NetCaches from filers. CDNs can be logically configured using various models. The typical Edge Distribution model is used for small CDNs.