1.On-premises,cloud on BCDR
+ Infrastructure is on premises,whereas the CSP provides alternate capabilities. This has traditionally been most common.
+ Concerns: different environment in the cloud.For instance,may need to convert workload on physical systems to virtual machine.
2.Cloud service customer,primary provider BCDR
+ Infrastructure is already located at a CSP.
+ The risk being considered is a failure of part of CSPs infrastructure.
+ Failover would occur to another part of the CSP infrastructure.
+ Concern: What is functionality of the redundant CSP location-load balancing? Bandwidth?Ability to meet SLA?
3.cloud service consumer,alternative provider
+ Infrastructure is already located at a CSP.
+ The risk being considered is a failure of part of CSPs infrastructure.
+ Failover is to a secondary provider.
+ Concern: Same as scenario 2 above plus need for processes to switch providers.