VMware NSX is completely software based. This means it’s flexible as heck and you can have a lot of instances running concurrently. It also means you can go crazy with your network topology designs and amount of tinkering you can do with your virtual network. I am someone who loves to tinker. Sometimes a bit too much. A consequence of this, is that I sometimes break my virtual test lab and have to re-install it and return to the starting point. This has happened … Read more



One of the great things of all network virtualization solutions, is that they can be automated using some form of API that they publish. Cisco ACI is no different and offers a RESTful API which you can consume to do stuff on the network. Well, it’s a ‘sort-of’ RESTful API, as they only seem to use GET and POST functions, no DELETE, PUT, etc. Instead to delete an object, you do a POST with the status ‘deleted’. Anyway, details.

PowerTool

Cisco has a PowerShell … Read more



The VMware Identity Manager (previously known as Workspace Portal) is a virtual appliance with Linux on it. When you install it, you configure a root and admin password for access to the administration interface. You need this password for appliance maintenance, upgrades, etc. As with keys, it is possible to loose this password and being unable to upgrade the appliance (as a colleague of mine learned).

As the password reset process is not really documented fully, I thought I’d throw the steps to reset … Read more


APIs are everywhere these days. As a VMware engineer with a broad range of products to support, APIs are ways to speed things up dramatically. Instead of clicking yourself silly, things can be done without seconds. Finding the documentation for all the different APIs can be challenging though, as there’s a PDF here, a knowledge base site there, etc.

Project Platypus is looking to change that by centralising VMware API documentation in a neat little container for ease of use. The presentation is handled … Read more


A few years ago, I created the first version of the Cisco UCS Inventory Script (UIS), a PowerShell script to read all the configuration and environment data from a UCS Manager. It can help you to get an easy overview of UCS installations after completing the initial build, or on an ongoing basis. To answer basic questions like “How many port licenses do we have left?” or “Did we create VLAN X?” – when you have no easy connectivity to the management console.

Next to reporting configuration and environment data, it also provides some basic recommendations about the configuration.

The … Read more



Besides monitoring Windows Services and the vCenter Server Appliance, you can also use vRealize Operations to monitor custom data through OS scripts. Attached to an Operating System object, an OS Script can output the health status and/or a metric for use in analysis. I will dive into the health status part for this post.

Setting the Stage

In this article, I’ll be using an example with a Linux server and the open source storage product Gluster. The OS Script will be checking … Read more



Cisco has just announced a new line of HyperConverged appliances called HyperFlex. With this announcement, Cisco has officially entered the HyperConverged market with an appliance with integrated compute, storage and network.

The HyperFlex line initially consists of three flavours and features the hardware of the existing Unified Computing System (UCS), coupled with a hypervisor (initially VMware vSphere, eventually Microsoft Hyper-V and KVM), a software defined storage solution from SpringPath (licensed for HyperFlex) and the networking solutions of UCS.

hyperflex-flavours

The three flavours of HyperFlex consists … Read more