A question that comes up quite often is which NUC I would recommend to buy. The following article shows buying options based on Price/Performance value, performance, and special needs like Dual-NIC or vPro.
Author Archives: fgrehl - Page 2
Which Intel NUC should I buy for VMware ESXi? (August 2020)
Posted by fgrehl
on August 10, 2020
5 comments
VMware vSphere with Kubernetes Guide Part 7 - Octant and Lens
Posted by fgrehl
on August 7, 2020
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This is the last part of my "VMware vSphere with Kubernetes" Guide. In this article, I'm going to give you two tools that will help you to get a better understanding of Kubernetes features. Both tools, Octant and Lens, are free and Open Source. The main difference is that Octant is browser-based and Lens is an Application.
VMware vSphere with Kubernetes Guide Part 6 - Tanzu Kubernetes Cluster
Posted by fgrehl
on August 4, 2020
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This is Part 6 of my "VMware vSphere with Kubernetes" Guide. In this article, I'm going to deploy a Tanzu Kubernetes Cluster (TKC). A TKC is a fully-featured version of the open-source Kubernetes container platform. You can provision and operate Tanzu Kubernetes clusters on top of the Supervisor Cluster.
- What is a Tanzu Kubernetes Cluster?
- Prepare the Cluster for a Tanzu Kubernetes Cluster
- Provision a Tanzu Kubernetes Cluster
VMware vSphere with Kubernetes Guide Part 5 - Create and Deploy Private Images
Posted by fgrehl
on August 3, 2020
1 comment
This is Part 5 of my "VMware vSphere with Kubernetes" Guide. In this article, I'm going to create a custom Docker image, push it to the embedded Harbor Registry, and deploy it to the Supervisor Cluster.
This is a part of a series. If you do not have a Kubernetes activated vSphere Cluster, refer to Part 1 to get started with the deployment.
VMware vSphere with Kubernetes Guide Part 4 - Working with kubectl
Posted by fgrehl
on August 2, 2020
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This is Part 4 of my "VMware vSphere with Kubernetes" Guide. In the last article, I've explained how to install and configure the Kubernetes CLI Tool kubectl and how to deploy the first pod. In this article, I'm taking a deeper look at kubectl.
This is a part of a series. If you do not have a Kubernetes activated vSphere Cluster, refer to Part 1 to get started with the deployment.
VMware vSphere with Kubernetes Guide Part 3 - kubectl Basics
Posted by fgrehl
on July 31, 2020
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This is Part 3 of my "VMware vSphere with Kubernetes" Guide. In the previous parts, I've explained how to enable Kubernetes in vSphere, deploy the Harbor Registry, and create a namespace in the Supervisor Cluster. Now it's time to get familiar with the Kubernetes CLI Tool kubectl and to deploy your first pod.
If you do not have a Kubernetes activated vSphere Cluster, refer to Part 1 and Part 2 for instructions.
VMware vSphere with Kubernetes Guide Part 2 - Harbor, Namespaces and K8S Components
Posted by fgrehl
on July 28, 2020
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This is Part 2 of my "VMware vSphere with Kubernetes" Guide. In the last article, I've explained how to get "Workload Management" enabled in a vSphere cluster. At this point, the cluster is successfully enabled to support Kubernetes, but what's next? Before I start to deploy the first container I'm going to enable additional services, create a Kubernetes Namespace in the Supervisor Cluster, and explore the deployed components in vCenter and NSX-T.
Getting Started Guide - VMware vSphere with Kubernetes
Posted by fgrehl
on July 24, 2020
3 comments
With the release of vSphere 7.0, the integration of Kubernetes, formerly known as Project Pacific, has been introduced. vSphere with Kubernetes enables you to directly run containers on your ESXi cluster. This article explains how to get your cluster enabled for the so-called "Workload Management".
- Required Components
- License Considerations
- NSX-T Installation and Configuration
- Prepare the vCenter for Kubernetes
- Cluster Compatibility Troubleshooting
- Enable Workload Management / Kubernetes
The article covers evaluation options, licensing options, troubleshooting, and the initial configuration.
How to Configure LDAPS Authentication in vCenter 7.0
Posted by fgrehl
on July 22, 2020
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This article explains how to configure LDAPS authentication in vCenter 7.0.
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NSX-T and VMKUSB NIC Fling - MTU Size Considerations
Posted by fgrehl
on July 19, 2020
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When configuring an NSX-T Overlay network you have to increase the default MTU size of 1500. It is critical that the MTU is configured across the whole platform (Network Adapters, Distributed Switches, Physical Switches, NSX-T Uplink profiles). A typical MTU size is 1600 or 9000. Be careful when using high MTU sizes, as most of the drivers used in the VMKUSB NIC Fling do not support MTU size 9000 and thus, the overlay communication will silently fail.
The relevant part is when you change the MTU Size in the dvSwitch configuration.
When you change the MTU size, the configuration is pushed to all connected network interfaces. Make sure to verify that the NIC has actually configured to the correct MTU:
[root@esx4:~] esxcfg-nics -l Name PCI Driver Link Speed Duplex MAC Address MTU Description vmnic0 0000:00:1f.6 ne1000 Up 1000Mbps Full 00:1f:c6:9c:47:13 1500 Intel Corporation Ethernet Connection (2) I219-LM vusb0 Pseudo uether Up 1000Mbps Full 00:24:9b:1a:bd:18 1600 ASIX Elec. Corp. AX88179 vusb1 Pseudo uether Up 1000Mbps Full 00:24:9b:1a:bd:19 1500 ASIX Elec. Corp. AX88179
In that case, the vusb0 adapter has been configured to 1600 which is fine and sufficient for NSX-T.
If you try to change the MTU size to 9000, you do not see any error messages on the dvSwitch, but the vmkernel.log reveals that the MTU could not be set:
2020-07-19T16:10:42.344Z cpu6:524356)WARNING: vmkusb: Set MTU 9000 is not supported: Failure
2020-07-19T16:10:42.344Z cpu6:524356)WARNING: Uplink: 16632: Failed to set MTU to 9000 on vusb0
