Tag Archive for 'Xen'

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DefCon 23 Video Demo: MAC Flooding on Gentoo/Xen with Open vSwitch 2.0.0

DefCon 23 Video Demo: MAC Flooding on Gentoo/Xen with 802.1d Bridging

Open vSwitch on Gentoo – Setting Up Your First vSwitch

In my last post I outlined how to get Open vSwitch installed on Gentoo from source for version 1.11.0 as well as from portage using version 2.0.0. I also described how to associate Open vSwitch with with Xen based virtual machines. This guide will detail how to build your first virtual switch from scratch and […]

Installing Open vSwitch on Gentoo (Xen Hypervisor)

The Gentoo ebuild for Open vSwitch does not seem to work with the latest available kernel as of this writing (3.10.7-gentoo-r1). This post is documentation of the process that I performed in order to successfully install Open vSwitch on a Gentoo server running the Xen hypervisor. This guide assumes that you already have a Gentoo […]

Xen Cloud Platform (XCP) – Cloning Hard Drive Woes

The main hard drive seems to be flaky in one of my XCP servers. I decided to use Clonezilla to clone sda to another drive to see if it is in fact the hard drive. After cloning over the drive I found that my LVM storage group VG_XenStorage-xxx was not mounting, and XenCenter was giving […]

Xen Cloud Platform (XCP) – XenCenter Snapshot Issue

When using XenCenter in conjunction with XCP you will find that you are unable to take snapshots of your virtual machines in XenCenter. XenCenter will spew up an error saying “Snapshots require XenServer 5.5 or later”. This seems very strange since XCP is based on XenServer 5.6.0-fp1. It turns out that the XCP xapi needs […]

Xen Cloud Platform (XCP) – Assigning A VLAN An IP Address

Once you create VLAN’s on your XCP server you will find that the physical interface you used to be able to hit by an IP address no longer responds. This is because you have trunked the interface into multiple VLAN’s and need to assign IP’s to the VLAN interfaces rather than the physical interface.

Xen Cloud Platform (XCP) – Setting Up A VLAN

One very useful feature of XCP is the ability to setup VLAN networks for your virtual machines to use. This gives an administrator fine grained control on what network a machine belongs on. This will work as long as the network interface that is assigned to your VM’s is plugged into a trunked port on […]

Xen Cloud Platform (XCP) – Add A Disk To The Default LVM Volume Group

If you initially install XCP using only one disk you can still add more drives later if you find you need more room. XCP uses LVM storage to manage the partitions created for new Virtual Machines which allows you to extend the default volume group at your leisure among other things.

Xen Cloud Platform (XCP) – Local ISO Storage Repositories

XCP supports local ISO storage on an internal hard drive. It is not available as an option in the xsconsole – Disk and Storage Repositories menu. However you can set one up with a little bit of command line magic.