Author Archive | Helge Klein

Veeam - backup infrastructure dialog 2

Hyper-V Backup – Products & Options

It’s 2018, and backing up Hyper-V hosts is solved, right? I certainly expected it to be when I took on the task of finding a simple and reliable way to back up three hosts colocated in a large datacenter. This article summarizes my journey and the findings resulting from it. (more…)

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Browsers and ad blocker privacy - all sites

Browser Ad Blockers and Privacy

You have probably been in this situation: on some shopping site you put an article in your cart, but decide not to buy it after all. Later on, you notice that you are getting targeted ads for the exact same product on totally unrelated sites – or so you think. There is, however, a common […]

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UWP Universal Windows Platform

Universal Windows App Data Storage for Admins

Universal Windows Platform (UWP) is the current name for a new type of application platform originally introduced with Windows 8 as “Metro” and later renamed to “Modern”. UWP apps can run on desktop, phone and console versions of Windows. They may only use a subset of the Windows API and run in a sandboxed environment. […]

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fujitsu-celsius-j550-front-and-back

The Perfect Workstation: Fujitsu Celsius J550

When it comes to selecting a general-purpose workstation I tend to be looking for the impossible: high performance, superb reliability, quiet operation, moderate price. Amazingly, there exists at least one device with all those qualities: the Fujitsu Celsius J550. The Perfect Workstation The perfect workstation should be: reliable fast silent well-supported energy-efficient user-upgradeable small …and […]

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Faster Trimming & Compacting of Hyper-V Ubuntu VMs

A while ago I described how to compact an Ubuntu VHDX running on Hyper-V using the sfill command. Running sfill, however, can take hours. Luckily, there is a much faster alternative. Ubuntu Trim and Hyper-V Ubuntu running in a Hyper-V virtual machine has been supporting the trim command since version 14.04 (details). The OS issues […]

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<a href="https://www.flickr.com/photos/gsfc/15618006994/in/photolist-pN7nmE-rjQRm5-dSzo2A-qEAQKJ-qGTuRP-bUzuxV-riVjBA-ee6PqM-8F1eDH-4zms5-eT6whT-nbxsKE-qxoLMF-r74Pq9-cbVu4q-qD8Npg-cE76Ss-fKNeRp-nFYwha-cPfnQ5-odyR5t-roCJtM-pLpPTc-d3dknb-98h4hb-bUAZv8-eapSfS-hKVoUG-iKmjBG-cbYeYU-pzW58P-iNpH9k-cb8LYQ-rhwFbz-nE3N2P-hKUZhk-dyR2S9-eSgcRg-hTZDmD-cbXSau-ov1BHP-dqgxB6-7GLbNG-hKUYMH-e7JueS-cbXSeU-aMSetv-hKW5R2-nev3ch-bUx8Q2/">Hubble’s High-Definition Panoramic View of the Andromeda Galaxy</a> by NASA Goddard Space Flight Center under <a href="https://creativecommons.org/licenses/by/2.0/">CC</a>

What’s Wrong with Group Policy

Over the years I have worked with Group Policy in many different ways. My experience ranges from helping an enterprise client establish a brand new set of policies for physical PCs and VDI machines to authoring ADM/ADMX/ADML files. Last year I presented and wrote a very detailed analysis of the impact of Group Policy on […]

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VHDX size in Hyper-V Manager

Compacting Hyper-V VHDX Files of Ubuntu Linux VMs

Note: if your guest OS supports the trim command you can use the faster method described in this article. If you configured your Hyper-V virtual machines with dynamically expanding virtual disks you will find that the VHDX files backing the virtual disks always grow in size, they never shrink. Eventually this becomes a problem either […]

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