GSS is just one part of the overall end-to-end solution. Howerver there are many other pieces to the puzzle. Here a just a few:
-SAN Replication
(powered by a storage vendor solution like EMC RecoverPoint or HP Continuous Access ... either one enabled by a Cisco MDS SAN fabric)
-Load Balancers
(provides a level of abstraction & virtualization of the application IP address and the server IP address -- thus making failing over an application to another site much easier ... ACE - CSM - CSS)
-Server Virtualization
(VMWare or VFrame - provides a level of abstraction and virtualization of the applicaion and OS from the physical server hardware -- thus making failing a server transparent to the application)
-Optical -- DWDM and CWDM
(often the best choice for a separate back-end datacenter-to-datacenter connection -- powered by a darkfiber service provider such as Above NET and Cisco ONS)
-GSS
(to provide site selection based on health as assesed by your Load Balancers)
** See attached diagram I have developed showing the end-to-end multi-datacenter solution **
I use this diagram when I have discussions with Cisco customers like yourself about how to implement multiple datacenters with the latest technology Cisco has to offer.
Hope this helps. Please give this post a quick rating ;)
-Brad
