Architecting a vSphere Compute Platform : Scalability and Designing Physical Resources : 5.13 Single Hypervisor Compared with Mixed Hypervisor
   
5.13 Single Hypervisor Compared with Mixed Hypervisor
The implementation of more than one hypervisor platform has become more common in the service provider industry in recent years. However, to host a VMware Cloud Provider Program service for business customers, the hypervisor platform must consist of a single native VMware offering. A single hypervisor environment can be managed through a single toolset, providing a global view of the entire environment. A multi-hypervisor environment might require multiple tools to manage and administer systems.
A single hypervisor environment also allows the relocation of resources anywhere within the environment. For instance, unused hypervisors can be moved to different clusters depending on where the capacity is required, without having to redeploy the hypervisor binaries. This provides flexibility with resources and also allows for simpler short-term and long-term capacity planning by not having to analyze multiple environments independently.
The use of a single hypervisor approach simplifies business continuity and disaster recovery (BCDR) planning because not all hypervisors have the same options available. Having a multi-hypervisor approach in a BCDR scenario will complicate the storage and network configuration and limit recovery options. Also, consider that a single hypervisor approach will, in most cases, cost significantly less in terms of operational management.
Table 8. Advantages and Drawbacks of Multiple Hypervisor Platforms
Advantages
Drawbacks
Might realize optimal performance for some applications
Support for more operating systems
Interoperability with specific cloud providers
Might require multiple different management tools and different operational processes
More complex capacity planning
Limitations in terms of allocating resources to different environments
Inhibits cross-environment migration
Multiple BCDR plans will be required
More complex capacity planning across multiple platforms