Posts related to Virtualization and Cloud technology based on VMware products.
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
This is a Part 2 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 in the first part of the interviews I lead. Those questions are asked to evaluate if candidate has general IT knowledge, and if he… Continue reading
IBM made an announcement last week that a new IBM Spectrum Virtualize Software V7.5.0 is coming soon (5th June 2015), which will bring supports for the features like vSphere VVols, HyperSwap, Microsoft ODX… If you haven’t heard yet, IBM replaced Storwize family naming earlier this year with Spectrum Virtualize Software.… 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
Apparently VMware called off latest patches for ESXi 5.5 released on 30.4.2015, However all of them can be still residing in your Update Manager! There is no official statement from VMware out there yet, but I suggest you do not apply following patches: ESX550-201504101-SG ESX550-201504101-BG ESX550-201504102-BG ESX550-201504104-BG I have found… 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
It happened, that part of my job is to interview a lot of newcomers who are seeking opportunities at IBM Brno, CZ. When I was just starting with this activity, I was trying to search internet what questions were usually asked when interviewing VMware vSphere guys, what a common was etc. Unfortunately, although… 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
