VMworld2019 Barcelona

ElasticSky.de chosen as official blogging partner

It’ll be the eleventh time when VMworld Europe opens its gates in Barcelona from 4th November to 7th November 2019. Traditionally VMworld Europe takes place after VMworld North-America, which will be held in San Francisco in August 2019. VMworld Europe will mainly attract visitors from the EMEA region. Although breakout sessions will be mostly the same in SF and BCN, both events will have different content and highlights. There are three months time in between, so you can be sure to expect announcements in Barcelona that weren’t ready in August.

Every year bloggers can apply for one of the few blogging passes handed out by VMware. In 2018 I successfully applied for a pass and so I tried it again in 2019. Last Monday I got an email which confirmed that I will get one of the blogging passes. I’m very happy honored about getting a pass for the second time. Many thanks to the blogging team at VMware.

Friends asked me if I would go there even if I hadn’t been selected. The answer is yes for numerous reasons. Besides condensed first-hand information it is networking with friends from all over the world. Where else can you meet VMware product managers and developers in one place. Last year I have written a VMworld Survival Guide about going to Barcelona and why.

Early Bird registration will be open until July 23rd 2019. You can save 200 € on ticket price when booking before end of early bird registration phase.

I’m going to post articles here on ElasticSky.de before and during VMworld Europe. Stay tuned.

2. May 20192. May 2019

New publications in IT-Administrator Magazine

Optimization, troubleshooting and monitoring of virtual infrastructures is like a scientific subject in itself and one of my IT-passions. Together with my buddy Dr. Jens Söldner I have published two articles in german IT-Administrator magazine (German Language), which cover the subjects above.

First article covers strategies for vSphere troubleshooting, best practises and useful tools like VeeamOne, RVTools, vRealize Log Insight or Runecast-Analyzer.

Second article covers vSphere management, administration, automatization and deployment.

IT-Administrator – Special Edition 01/2019

This special edition is available well-assorted magazine stores or can be obtained directly from the publisher’s website.

1. April 20199. April 2019

High frequency read on VMtools image might harm SD boot media

ESXi system disks do not require a lot of storage space on their boot media. That’s the reason why many installations use small and less expensive flash media instead of disks (and SCSI controller). It can be USB flash media for example or a SD-card.

The quality and reliability of these media varies. Even from batch to batch of the same type and the same vendor. Heavy write activity, but also heavy reading may significantly shorten the lifespan of flash media. In recent times we had to witness media that failed after less than a year in service. As long as the host keeps running this isn’t a bigger problem, because all crucial components are kept in ESXi host RAM. With VMtools-Image the situation is different. Each time a VM requests access to the image it will be read from flash. Especially VDI environments have a high read rate onto VMtools-Image, which may ‘burn’ the media.

VMware is aware of the problem and has introduced a migitation of the issue starting with ESXi 6.0 U3. It is not active by default and has to be activated manually. The migitation is fairly simple. During host boot VMtools-Image will be mapped into RAMDisk. Read access will be served from RAM and the lifetime of the media will be extended.

I will show here how to activate the option with web-client, PowerCLI or ESXi shell.

31. December 2018

Upgrade ESXi 6.5 with Fujitsu Custom Image

VIB Conflict

Host upgrades with custom images offer extended driver support for vendor specific hardware or agents. You’ll get drivers that are not included in a standard VMware (Vanilla) image. Upgrading with customized images may lead into trouble while updating existing driver packages. There used to be a nasty bug with the lsiprovider package on Fujitsu ESXi 5.1 images. Another example was the “death by upgrade” bug (blog post in German) when upgrading a customized Fujitsu installation to ESXi 6.0. There are other examples from different vendors in the hall of shame.

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