VMware vSAN is the software defined storage solution (SDS) in the VMware universe. This technology transforms your traditional VMware and storage infrastructure in a complete hyper converged infrastructure (HCI) setup. And VMware just released vSAN 6.7 a few weeks ago.
But why do I think it’s superior to other HCI solutions?
Continue reading “Why VMware vSAN 6.7 is superior to other solutions”
If things go wrong in a VMware vSAN 6.x environment you may see congestion warnings and errors – usually in hybrid setups. I try to explain what congestion means in the world of vSAN, why it’s a problem and how to deal with it.
What is congestion?
In short, congestion occurs when you have a bottleneck in the lower layers of your vSAN infrastructure. Or, more concretely: The destaging process of the incoming data, from the flash cache to the capacity disks, is so heavy that one layer of vSAN cannot handle this amount of data.
Continue reading “Understanding congestion in vSAN”