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Kernel 2.6.18-164.11.1.el5xen on xen.gz-3.4.1 needs dom0_mem

My server runs CentOs 5.x, and uses the Gitco repo to provide later versions of Xen. I’ve previously sorted out the issues (at least in earlier Xen and CentOS versions) around bridging guest vifs to a bonded interface (I replaced Xen entwork scripts with stock CentOS ones, which needed patching to bring bonds up [...]

Xen vs KVM – horses for courses?

As anyone who’s read any of my previous posts will know, I’ve been considering Red Hat’s adoption of KVM over Xen and wondering if a move to KVM is the right thing to do.

I think “The right thing” depends a fair bit on where you are, and what your requirements are. Obvious? Perhaps, but [...]

LVM saves the day, possibly…

Using LVM for Xen guests virtual disks might have made KVM migration easier than I first [...]

In theory – migrating from Xen to KVM under CentOS 5.3

I’m advance planning my migration of live services from Xen VMs to KVM VMs on the same physical box, with as little downtime as [...]