Architecting a Hybrid Mobility Strategy : Use Case Scenario
   
Use Case Scenario
Rainpole.com is launching a new online sports service. The marketing and sales departments are not able to provide a reliable forecast of the number of customers expected to use the service. They have warned their IT organization that visibility in the market for this service will be subject to a large degree of variability with high peaks that coincide with specific sporting events.
Rainpole.com currently houses their entire IT infrastructure in a single physical location adjacent to their offices. A mandate from the executive board states that this single point of failure can no longer be tolerated, and action is required before the launch of the new online sports service.
Outsourcing a dedicated infrastructure to take advantage of a service provider’s resource elasticity is not an option because there is a shared back end with other online services running on-premises. In addition, as the back end is not uniquely tied to the specific new offering, it cannot be moved off-premises, and some of the data in the back end databases is sensitive, so Rainpole.com wants to keep it inside their firewall.
For these reasons, Rainpole.com is evaluating an innovative hybrid deployment model that enables them to gain flexibility and comply with their constraints. Additional Rainpole.com business requirements include the following:
Live migration of workloads from on-premises to the provider’s data center, and maintaining virtual machine sessions before, during, and after the live migration
Continuous data availability of online services
Approximately 200 km between on-premises and chosen VMware Cloud Provider’s data center
Costing must be based on a OPEX-based model
The ability to perform a permanent migration for virtual machine services to the VMware Cloud Provider’s data center
The ability to migrate virtual machines to the service provider’s site to avoid imminent disaster
The ability to distribute applications with flexibility across physical sites to balance system load