stretched cluster

Supporting Fault Tolerance VMs on vSAN Stretched Cluster

During one of our many discussions at VMworld 2017, I was asked about supporting Fault Tolerance on vSAN Stretched Clusters, more specifically SMP-FT. Now to [...]

How many hosts are needed to implement SFTT in vSAN Stretched Cluster?

Many of you who are well versed in vSAN will realize that we released a Secondary Failures To Tolerate (SFTT) feature with vSAN 6.6. This meant that not only [...]

New vSAN Stretched Cluster Topology now supported

After publishing the vSAN Networking Guide earlier this year, Paudie O'Riordain and I received numerous questions regarding support on having different [...]

Erasure Coding and Quorum on vSAN

I was looking at the layout of RAID-5 object configuration the other day, and while these objects were deployed on vSAN with 4 components, something caught my [...]

Why two stretched clusters cannot cross-host each others witness appliances!

Sorry about the wordy title but this is a question that has come up a number of times. The request is that when I have two data sites and deploy two stretched [...]

Another recovery from multiple failures in a vSAN stretched cluster

In a previous post related to multiple failures in a vSAN stretched cluster, we showed that if a failure caused the data components to be out of sync, the most [...]

Understanding recovery from multiple failures in a vSAN stretched cluster

Sometime back I wrote an article that described what happens when an object deployed on a vSAN datastore has a policy of Number of Failures to Tolerate set to [...]