Power Outage: A true test for Ganeti

Nothing like a power outage gone wrong to test a new virtualization cluster. Last night we lost power in most of Corvallis and our UPS & Generator functioned properly in the machine room. However we had an unfortunate sequence of issues that caused some of our machines to go down, including …

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Creating a scalable virtualization cluster with Ganeti

Creating a virtualization cluster that is scalable, cheap, and easy to manage usually doesn't happen in the same sentence. Generally it involves a combination of a complex set of tools tied together, expensive storage, and difficult to scale. While I think that the suite of tools that use libvirt are …

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Upcoming Talks

I'm going to be speaking at several open source conferences this summer. Most of my talks will be centered around a virtualization management tool called Ganeti. I plan to write several blog posts in the coming weeks going over Ganeti in preparation to my talk at Open Source Bridge.

Here's …

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Adding a simple progress bar to dd

I recently ran into an issue where I wanted to move several KVM based virtual machines from one server to another server. There's several ways you can accomplish this depending on what you want to do. In my case I was using LVM for the disk backend, so simply copying …

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