vSphere 7.0 U3 contains two great vCLS enhancements

I have written about vCLS a few times, so I am not going to explain what it is or what it does ( detailed blog here). I do want to talk about what is part of vSphere 7.0 U3 specifically though as I feel these features are probably what most folks have been waiting for. Starting with vSphere 7.0 U3 it is now possible to … [Read more...]

Issue adding tags to the vCLS VMs with vCenter Server 7.0 U2b

Today I was talking to one of our field folks and he asked if there was an issue with Tags in combination with vCLS VMs in 7.0 U2b specifically. I had tested assigning tags to vCLS VMs before, and it worked just fine. With 7.0 U2b unfortunately this has stopped working. The error you will see displayed in the vSphere … [Read more...]

vSAN 7.0 U2 now integrates with vSphere DRS

One of the features our team requested a while back was integration between DRS and vSAN. The key use case we had was for stretched clusters. Especially in scenarios where a failure has occurred, it would be useful if DRS would understand what vSAN is doing. What do I mean by that? Today when customers create a … [Read more...]

How to login to the vCLS VMs!?

I was asked this question this week, how you can login to the vCLS VMs. Now before I share the video, I want to mention that I do not encourage people doing this, but as it is documented and supported I do want to provide a simple “how to” for how this works. If you want to login to the vCLS VM, maybe for … [Read more...]

VMware vSphere Clustering Services (vCLS) considerations, questions and answers.

Advertise here with BSA In the vSphere 7.0 Update 1 release VMware introduced a new service called the VMware vSphere Clustering Service (vCLS). vCLS provides a mechanism that allows VMware to decouple both vSphere DRS and vSphere HA from vCenter Server. Niels Hagoort wrote a lengthy article on this topic here. You may … [Read more...]

New whitepaper available on vSphere 7 DRS Load Balancing

vSphere 7 contains the new DRS algorithm that differs tremendously from the old one. The performance team has put the new algorithm through the test and have published a whitepaper presenting their findings. Read the white paper: Load Balancing Performance of DRS in vSphere 7.0. The post New whitepaper … [Read more...]

vSphere 7 DRS Scalable Shares Deep Dive

You are one tickbox away from completely overhauling the way you look at resource pools. Yes you can still use them as folders (sigh), but with the newly introduced Scalable Shares option in vSphere 7 you can turn resource pools into more or less Quality of Service classes. Sounds interesting right? Let’s first … [Read more...]

DRS Migration Threshold in vSphere 7

DRS in vSphere 7 is equipped with a new algorithm. The old algorithm measured the load of each host in the cluster and tried to keep the difference in workload within a specific range. And that range, the target host load standard deviation, was tuned via the migration threshold.   The new algorithm is … [Read more...]

vSAN/DRS awareness to be introduced in vSAN/vSphere 7.0!

Advertise here with BSA It was briefly mentioned here, but I figured I would elaborate on this new cool feature for vSAN Stretched Clusters which is DRS Awareness of vSAN Stretched Clusters. So what does this mean? Well, it is fairly straight forward. DRS will take vSAN resync traffic into consideration when the DRS … [Read more...]

vSphere 7 and DRS Scalable Shares, how are they calculated?

Advertise here with BSA I wrote a post and recorded a short demo that explained this cool new feature called Scalable Shares, part of vSphere 7 / DRS, last week. I didn’t want to go too deep in the post, but now that I am getting more questions about how this actually works, I figured I would provide some examples to … [Read more...]