Great post, I have more questions around the stretched cluster setup.
So, if one creates a policy with "None - keep data on Preferred (stretched cluster)", then the data will reside in the fault domain that is set to preferred?
In our stretched cluster, site A is set as the preferred fault domain.
We do have a number of virtual machines with policies that "stretch" them between site A and B, i.e. PFTT = 1.
However we also have virtual machines with a storage policy that is set to "None - keep data on Preferred (stretched cluster)", i.e. PFTT = 0. These virtual machines also have a "should" DRS rule that keeps the virtual machines running on hosts located in site B.
Two questions based on the above:
1. Does this mean that those VMs running in site B with "None - keep data on Preferred (stretched cluster)", are actually having their reads and writes served from site A?
2. To expand on the above question, for the VMs that are "stretched" between both sites with PFTT = 1, where does their reads get served from? Would it be the host that they are running on (and the site they are currently located in)?
Thanks!