Is there a way I can confirm the availability of the applications in the VM. I mean is there any testing applications or DB that I could install on the VMs and test.
Apart from failover and failback of the testing VMs, anything should I test
Can you please also try Orchestration for Multi Tier Applications using vRO as well as Site Recovery Manager in a Two-Site Topology with Two vCenter Server Instances per Platform Services Controller. Also if customer has a DR in different time zone how to manage it with time synchronization. If you are working for POC customer also can ask about whether Site Recovery Manager allows and supports shared protected site (1:N) and many-to-many (N:N) configurations ? Also did you test the SRM integration with NSX because some customer might have security policies configure for micro-segmentation. I guess these points will be good enough for POC on a customer site at the time of project kick off or presentation.
That testing is really up to you and your applications and how you use them. SRM has no automated capabilities here, but Veeam (just as one example) does in which they have pre-built scripts to test for application availability like AD, Exchange, SQL, etc. So you'd have to make your own tests or find another application which handles that for you.
