vSAN Cluster Partition

While performing some firmware updates on my vSAN enabled hosts, we noticed some vSAN related alarms firing off. The one in particular that was bothering me was the Network Health – vSAN Cluster Partition. Why? Well, let’s take a look at what that means. All vSAN hosts should be able to communicate metadata updates over…

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NSX-T Reset Accounts with REST API

While troubleshooting a Workload Management deployment, I logged into my NSX-T Manager appliance to see if there were any issues. I immediately noticed several alarms, with a majority of them relating to Password Management. Sure enough, my local accounts all expired. Let’s reset the accounts with REST API! For the purposes of this example, I…

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Migrate Hosts to New vCenter with VDSwitch

There was a business need to migrate a cluster of hosts to a new vCenter that are connected to a VDSwitch. This is a fairly straightforward task, and something I’ve done more than a few times in my career. I’ve used a few methods to accomplish this in the past, and wanted to see if…

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Troubleshooting Workload Management

I ran into an issue when enabling Workload Management in my lab where I was unable to ping the Control Plane IP Node IP Address. I followed a few different blog posts to get the environment setup. Specifically, Florian Grehl’s blog and Viktor van den Berg’s blog. I highly recommend them, as they are both…

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Lifecycle Manager Sync Fails

We are rolling out vSphere 7.0, and in our testing we were getting errors with Lifecycle Manager. Any attempts to synchronize updates fail with “A general system error occurred”. Not a lot of love in the vmware-vum-server.log file. We are using a proxy server for updates, but our other non-7.0 vCenter servers all work without…

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Unable to Setup vCenter HA

While attempting to setup vCenter HA for my 6.7 Lab environment, I was met with a very strange error. “The object ManagedObjectectReference has already been deleted or has not been completely created”. I was unable to find much in the way of logs, other than the failure message itself. Time for a VMware support ticket!…

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Check VMware Tools Status

I wanted to perform a mass graceful shutdown of VM’s as part of an orchestrated lift-and-shift effort. When I started my preparation work, which mainly consisted of me testing scripts in my lab environment, it dawned on me that not all of my Production VM’s have VMware Tools installed. So how can I go about…

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Automate Advanced Settings with ESXCLI

After my last post about NFS Performance decreasing after host reboots, I was tasked with implementing the workaround across our infrastructure. My two options are click through the GUI until my fingers bleed or automate. As you can assume by this post, we’re most definitely going with the latter. And we all know the best…

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