Distributed Switch to Standard Switch Migrations

I was looking for a way to migrate VMkernel adapters back from a VDS to a VSS. This was because I am testing various upcoming releases of vCenter Server 8.0 and vSphere with Tanzu. vSphere with Tanzu, if you do not use NSX-T, requires a distributed switch and distributed portgroups. After building out some test environments, I wanted to roll back a distributed switch (VDS) configuration to a standard vSwitch (VSS) configuration. The process seems to have changed a few times in the past, and I could not find anything that demonstrated how to do task on vSphere 7.0. Thus…

A closer look at vSphere+ and vSAN+

At this stage, I guess that most readers will already be aware of the recent announcement around vSphere+ and vSAN+. I’m sure many readers are also aware that VMware is on a multi-cloud journey, with a goal of offering the benefits of cloud to on-premises vSphere deployments. vSphere+ and vSAN+ are some of the first steps we are taking at VMware to make this goal a reality. So what advantages does vSphere+ and vSAN+ give to customers? In this post, I will attempt to highlight some of those benefits. Centralized Management First and foremost, vSphere+ offers a new mechanism for…

VASA – Error while removing an entry for the provider in the providerCache

Some time ago, I hooked our Virtual Volume (VVol) capable storage array up to a vSphere 6.5 cluster. I did a few preliminary tests, such as adding the VASA (vSphere APIs for Storage Awareness) Provider, creating the VVol datastore, observing the creation of the Protocol Endpoints (PEs), and of course creating some virtual machines as a set of VVols. All went flawlessly. Then, like many other lab tests, I got distracted by a number of other things. In the meantime, the storage array vendor announced support for an updated VASA version, and we had the storage array updated to accommodate…

VMworld 2017 Session on vSphere 6.5 Core Storage now on YouTube

A quick note to let you know that the session that I delivered on day 1 of VMworld 2017 is now available on YouTube. The session is entitled “A Deep Dive into vSphere 6.5 Core Storage Features and Functionality” and I delivered this with Cody Hosterman of Pure Storage. Judging by the feedback, and the number of passing comments I received in the hallways at VMworld over the past 2 days, it seems that this session was very well received indeed. Hope you like it.

What’s new in vSphere 6.5 Core Storage

Hello from VMworld EMEA in Barcelona. Well, we can finally talk about vSphere 6.5 today. In this post, I want to highlight a number of new and enhanced features that you will find in vSphere 6.5 related to core storage. I am not going to discuss Virtual SAN (VSAN), Virtual Volumes (VVols) or I/O Filter enhancements (VAIO) specifically in this post, although you will no doubt see some new features tie directly into the latter. Instead, I want to talk about those features that are specific to core storage.

Recovering from a full VSAN datastore scenario

We had an interesting event happen on one of our lab servers this weekend. One of the hosts in our four node cluster hit an issue, which meant that the storage on that host was no longer available to the VSAN datastore. Since VSAN auto-heals, it attempted to re-protect as many VMs as possible. However, since we chose to ignore one of the health check warnings to do with limits, we ended up with a full VSAN datastore.

VSAN 6.2 Part 6 – Performance Service

Many seasoned VSAN administrators will know how heavily we rely on VSAN Observer to get an understanding of the underlying performance of VSAN. While VSAN Observer is a very powerful tool, it does have some drawbacks. For one, it does not provide historic performance data, it simply gives a real-time view of the state of the system as it is currently, not what it was like previously. VSAN Observer is also a separate tool and is not integrated with vSphere web client, thus you didn’t have a “single pane of glass” view of the system. The tool is also complex,…