Recently I had situation where a few misconfigured VMs were not able to be migrated to any of the other hosts in the cluster, which came as a surprise during our maintenance window. This made me want to be a step ahead and minimize unplanned troubleshooting for future. If you… Continue reading
Recently we got access to a 16-node Nutanix cluster with vSphere on top of it. The datastore which was supposed to be used by us was created with Replication Factor 2 and we decided to create another one with RF=3, which provide higher level of data availability by keeping 3… Continue reading
Long time expected is becoming reality today: WhatMatrix® launched for production after tens and hundreds hours of hard work spent by volunteering experts of virtualization – and 4 of them also The Virtualists – Roman, Jan, Dusan and Gica. And this is materializing into a new ‘crowd-sourced consultancy’ service www.whatmatrix.com.… Continue reading
As I’m planning to deploy ESXi 6.0 in our environment, I’m doing research for the all issues or behavioral changes coming with vSphere 6.0. I have discovered one serious change in behavior which came with ESXi 6.0 and I don’t think it was announced anywhere and it can cause outage in your… Continue reading
Working on a solution for automating virtual desktop provisioning, I had to find a easy and fast way to add a user who will be able to access the desktop via RDP. I wanted this to be as simple as possible, so it could be easy for maintain and edit. Here… Continue reading
I did a crazy thing last week, I decided to update our vCenter appliance (VCSA) from version 5.5U3a to version 6.0 Update1 3040890. I was surprised how flawlessly it went. It was finished in couple of hours, “almost” everything was working as expected, so big success 🙂 Until users started… Continue reading
SoftLayer local disk performance SATA/vSAN/SSD What disk performance you can expect from local drives in Softlayer with VMware vSphere6, vSAN & local SATA or SSD drives? This article is here to help you see and decide if performance will be enough for your needs. I have 3 hosts with: hardware… Continue reading
The Virtualist at NetApp Insight 2015 This year we had a chance with Jan Hosek and Michal Klimes to visit NetApp Insight in Berlin as well as VMware VMworld in Barcelona. In this article, we will compare these two events from several different views. Although both companies are not direct… Continue reading
UPDATE: I do not recommend using this guide for any future deployment. The information included is quite outdated and is not relevant anymore. The article should only be used as reference for some commands. My recommendation is to check IBM’s official offering of VMware on IBM Cloud. A lot of… Continue reading
Now when we have ESXis installed and vCenter server deployed, we need to do some patching and, of course, networking config. First, it is always a good idea to have your vSphere environment up to date. The thing is that Softlayer uses Images to provision servers and those images are not… Continue reading
