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Tag: virtualization

Xen: Debian Lenny Dom0 with Ubuntu Lucid Guest

May 25, 2010October 15, 2018 ~ Matthias Marschall ~ 46 Comments

It sounds like a simple thing to do: As Ubuntu does not have support for Xen by default, I wanted to run a Debian Lenny Server as Xen host (Dom0) with Ubuntu Lucid (10.04) LTS as guest (DomU). But there were some obstacles: debootstrap does not support Ubuntu Lucid by default Ubuntu Lucid cannot boot … Continue reading Xen: Debian Lenny Dom0 with Ubuntu Lucid Guest

ZFS vs LVM For Dummies

April 23, 2009October 15, 2018 ~ Matthias Marschall ~ 7 Comments

Warning: This article is an over-simplified and absolutely incomplete view of ZFS vs LVM from a user's point of view. I'm sure, LVM works great for a lot of people, but, well, for me it sucked. And ZFS simplifies my life. Honestly. Here's why. Providing Disk Space To Virtual Machines Ok, I have to admit … Continue reading ZFS vs LVM For Dummies

Service Isolation By Virtualization

September 21, 2008October 15, 2018 ~ Matthias Marschall ~ 3 Comments

As recommended by Ezra Zygmuntowicz, I’ve divided all layers of our web application into separate virtual machines using Xen. At a first glance, having virtual machines for every service sounds like quite some overhead. Isn’t it much simpler to just install the whole stack on one box and let it run? Why take the hassle … Continue reading Service Isolation By Virtualization

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