VMware Paravirtual adapters were introduced back in 4.x and at the beginning there were some concerns. There were some issues if used with virtual machines that didn’t do a lot of IOPS, but that was resolved in vSphere 4.1. Otherwise PVSCSI offers 12% improvement in throughput at 18% less CPU. Today we’ll see how-to safely change virtual […]
My first look on VMware VSAN observer
After my recent installation of VSAN cluster I wanted to get some more deep information about what’s under the hood as vSphere web client itself does not give you much insights. I also wanted to see if the installation and configuration VSAN Observer performance and statistic tool is about. I already saw some posts about […]
By default VSAN does not show any VM storage policies – How to create them
When I finally accomplished my “homebrewed” VSAN cluster by checking “activate VSAN” check box and manually associated the locally attached disk drives into the disk groups, I thought that’s it, VSAN is up and running. True, but after migrating few VMs to the newly created VSAN datastore I thought hey, there should be some storage […]
Which Tool to use for cloning ESXi on USB stick
I was seeking the other day for an utility which would allow me to create an exact copy of an USB key with VMware ESXi installed. To clone ESXi installed on USB stick to another USB. I looked through the internet and tried a freeware utility that did not work (ImageUSB), but then stumbled across Clonezilla which […]
Memory Channel per Bank getting non active when using PERC H310 Contoler card – Fixed!
I had this memory problem since about a week in my lab, and while still waiting for other pieces I ordered for the lab, I didn’t really seek a solution. But tonight I received all necessary parts to be able to assembly all 3 hosts for VSAN. But there was still this problem with memory. […]
Infiniband in the homelab – the missing piece for VMware VSAN
The first time I ever touched this amazing (and cheap) network technology called Infiniband, it was a while ago when setting up a back-end storage network (without an IB switch) between two hosts. You could probably see the exploit in my article here – Homelab Storage Network Speedup with …. Infiniband, together with a short video. The HCAs […]
How-to rename VMNIC in VMware ESXi
The problem of assigning different name to your VMNIC is not new. Several sources reported NIC enumeration that occurs after applying a BIOS update, resulting a connectivity loss. But there is a way to fix it even if rename VMNIC in VMware ESXi through the UI isn’t possible. In my case it was simple a cosmetic […]
How to publish RDS application in Horizon View 6
Horizon 6 announced few days back brought a clearly new wind into the desktop virtualization space. Where in the past the VDI was often subject of performance and cost, see ROI. We might see this changing, is the 2014 finally the year of the VDI? Yesterday’s post showed How to add RDS functionality to Horizon View […]
How to reset ESXi 6.x root password and under which conditions
I had this question recently through an e-mail and was sure that I already wrote about it. After some research, I figured out that a blog post would clear my doubts. VMware says that it’s not possible to reset ESXi password on ESXi 6.x (and 5.x) systems. However, under certain circumstances, there is a possibility […]
Elevated Command Prompt in Windows 8.x
One of the annoyances of W8.x OS (there are others too) is the fact that pressing WIN (Windows) + R and then typing cmd gives you command prompt window, but without elevated privileges. This is quite annoying because even with being member of the local administrator group you get restricted on that – you need Elevated Command […]
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