All HA considerations are indeed described in the vSAN book and on storagehub here: Cluster Settings – vSphere HA | vSAN Stretched Cluster Guide | VMware
Datastore Heartbeats are not used when you only have vSAN. So in your situation it doesn't matter at all, you don't have any other datastores for a heartbeat to storage. I am not sure what you mean with the design implication to be honest.
Might be most stupid thing I might have done. I should delete this thread.
When I see again (in foresight), "Decision Implication" is completely wrong Label.
I skipped "Folder Structure with vSAN for HA" from the "Handbook" and directly jumped to "Heartbeat Datastores, When Can They Help?"
And "Heartbeat Datastores, When Can They Help?" has confused me to think that it is supported. I think this section when you have both vSAN and Traditional storage.With Great Regards,
vExpert 2012-2017 | VCP3-5 | VCAP5-DCD | VCP-NV | vSAN Specialist | VDI | Germany