WhatMatrix Virtualization Comparison – Hypervisors (Update – Open Beta 26.8.2015) The Story started during the last VMworld 2014 in one of Barcelona Pubs where I met the WhatMatrix core team we spoke about our common virtualization hobby and doing web-projects. We started to work together and now I’m pleased to show you what… Continue reading
This is a Part 3 of ‘Interviewing for VMware vSphere Support Engineer job role’ series of posts. In my previous post I covered some of the questions which I ask when interviewing for a Junior Engineer position. In this part, I will cover questions and scenarios intended for a more advanced, Second Level… Continue reading
VMUG sessions in the Czech Republic are not that frequent to take place, which is pity, as it is a good platform for information exchange and update on some technical pieces. Not many system admins from this part of the world are lucky enough to have a chance to go to VMworld directly… Continue reading
Crowdstrike disclosed a serious VM Escape vulnerability – codename VENOM, CVE-2015-3456 which has been around here since 2004. This one is especially serious because it is affecting the VMs in their default configuration and could be also affecting thousands of the VMs in cloud. This vulnerability may allow an attacker… Continue reading
This is Part 1 of ‘Interviewing for VMware vSphere Support Engineer job role’ series of posts, which were described in my previous post here. In this post I will summarize the questions I ask when I want to understand if candidate has basic understanding of IT and if (s)he is motivated… Continue reading
In the last two years I was participating on the many designs, implementations and reviews of the vSphere on IBM/Lenovo Flex System or PureFlex, if you want to call like that. Therefore today I would like to share with you my preferred way of doing it right from vSphere perspective… Continue reading
IBM has released a flash alert regarding a new behavior introduced in vSphere 5.5 Update2 and vSphere 6.0 where VAAI ATS (Atomic Test and Set or in the other words Hardware accelerated locking) is used for heartbeat I/O. http://www-01.ibm.com/support/docview.wss?uid=ssg1S1005201 According to IBM: Due to the low timeout value for heartbeat… Continue reading
Despite being an IBMer I have greater experience with HP servers, mainly because my customers have decided to go the HP path. Nothing wrong with that if you keep the hardware happy, which means you need to have the latest and greatest BIOS and device firmware versions applied. Since we… Continue reading
Recently I wrote an article about a new VMware fling VM Resource and Availability Service which can be used to simulate failure of one or more ESXi hosts. In this article I’ll describe how to associate the DRS dump with the particular cluster, using the Managed Object Reference ID (MoRef… Continue reading
VMware Horizon 6.1 has been released a week ago, providing a bunch of new features and full support of vSphere 6.0. Here is a list with the main improvements of the new version of the VMware VDI solution: NVIDIA GRID vGPU (shared GPU hardware acceleration) Smart Card for RDS desktops… Continue reading
