stretched cluster

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 [...]

vSAN Stretched Cluster – Partition behavior changes

My good pal Paudie and I are back in full customer[0] mode these past few weeks, testing out lots of new and upcoming features in future release of vSAN. Our [...]

VSAN 6.2 Part 9 – Replacing the witness appliance

There might be a reason in VSAN stretched cluster environments or in 2-node VSAN ROBO deployments to change the witness appliance. The one thing to keep in [...]

VSAN 6.2 Part 8 – Upgrading VSAN Stretched Cluster from 6.1 to 6.2

This is an exercise that we ran through in our lab environment, and we thought that the steps would be useful to share here. By way of introduction, our 4 node [...]