Abstract: A system for providing a network service includes at least first and second data centers containing the same functionality and data content. The first data center designates a first group of resources as active, and another group of resources as standby resources. In a similar, but reciprocal, manner, the second data center designates a first group of resources as active, and another group of resources as standby resources. Users coupled to the first and second data centers may access active resources located in both the first and second data centers. In the event of a partial or complete failure of data center resources, the standby resources are activated and used to service user requests. In one embodiment, the data centers include a three-tier structure including a web access tier, an application logic tier, and a database management tier.

Abstract: A system and method for accessing resources includes first and second data centers located at first and second respective geographic locations. The first center include a first file server and first data storage unit, while the second data center includes a second file server and second data storage unit. In one embodiment, the first data storage unit includes active resources designated for active use, while the second data storage unit includes standby resources designated for standby use in the event that the active resources are not available. A switch fabric and associated intelligent controller communicatively couple the first file server, the first data storage unit, the second file server, and the second data storage unit. The intelligent controller may route information through the switch in multiple different ways deemed appropriate in view of the failure conditions that affect the system.

Abstract: A process and system are provided for projecting hardware requirements for a web site. The process and system employ a performance model and a user model that together enable prediction of a number of concurrent users that the web site can support. The two models also enable determination of a hardware configuration that would be required to support the predicted number of concurrent users. The two models are used together to achieve scalability of the web site.

Abstract: A system and method for accessing resources includes first and second data centers located at first and second respective geographic locations. The first center include a first file server and first data storage unit, while the second data center includes a second file server and second data storage unit. In one embodiment, the first data storage unit includes active resources designated for active use, while the second data storage unit includes standby resources designated for standby use in the event that the active resources are not available. A switch fabric and associated intelligent controller communicatively couple the first file server, the first data storage unit, the second file server, and the second data storage unit. The intelligent controller may route information through the switch in multiple different ways deemed appropriate in view of the failure conditions that affect the system.

Abstract: A system for providing a network service includes at least first and second data centers containing the same functionality and data content. The first data center designates a first group of resources as active, and another group of resources as standby resources. In a similar, but reciprocal, manner, the second data center designates a first group of resources as active, and another group of resources as standby resources. Users coupled to the first and second data centers may access active resources located in both the first and second data centers. In the event of a partial or complete failure of data center resources, the standby resources are activated and used to service user requests. In one embodiment, the data centers include a three-tier structure including a web access tier, an application logic tier, and a database management tier.

Abstract: In one embodiment, a method for interactive network session tracking from inbound source to net sale includes storing a unique session ID (identifier) in an entry in a session database, and associating the session ID with an inbound source (origin) of the user of an interactive network site. The user's actions, such as page views, product detail views, and shopping cart additions and deletions, can also be stored in the session database associated with the session ID. The unique session ID is embedded in a digital offer that is stored in a transaction database such that net sale data is associated with the session ID. Reporting and correlation of transaction data and the user activity data can be performed offline for analysis of purchase and traffic patterns.