For the ultimate in availability and scalabilty,
Webfarm Hosting (also called
Server Farm) is the perfect solution. A webfarm consists of two or more web
servers (
see diagram) with the same configuration, that serve up
the same content. Hosting on a
webfarm means that if a server is not available -- whether due to a problem,
maintenance, or simply being busy -- the other servers in the webfarm continue
to respond. This allows the site to satisfy client requests continuously. The
servers may be shared among multiple customers, or dedicated to a single
customer.
In addition to high availability, a
webfarm also gives an application greater scalability. If load increases on the
application more nodes can be added to
the webfarm, transparently to your users. Many of our Dedicated Hosting
customers front-end their dedicated database servers with a Webfarm
configuration for maximum website responsiveness, availability, and performance
regardless of fluctuations in load.
Webfarm is recommended for any size solution that is highly dependent on both
uptime and performance. A Shared Webfarm solution often costs less than a
dedicated server, but does have some
limitations and special
considerations.