Xen and BridgingXen and Bridging
In a default configuration of Xen there will be a virtual Ethernet device created for each interface which will be associated with a bridge. A previous post documented how to[...]
Category: Virtualisation
Virtualisation and cloud computing
Modules and NFS for XenModules and NFS for Xen
I’m just in the process of converting a multi-user system to a Xen DomU. It was running on a stand-alone Fedora Core 5 i386 system and I want to run[...]
Bizarre “No space left on device” error from XenBizarre “No space left on device” error from Xen
What should have been a routine “remove DIMMs and run memtest until things work” procedure to solve a memory error became a lot more complex due to poor error handling[...]
Xen and HeartbeatXen and Heartbeat
Xen (a system for running multiple virtual Linux machines) and has some obvious benefits for testing Heartbeat (the clustering system) – the cheapest new machine that is on sale in[...]
first look at CentOS 5 Xenfirst look at CentOS 5 Xen
I have just installed a machine running CentOS 5 as a Xen server. I installed a full GUI environment on the dom0 so that GUI tools can be used for[...]
Xen and eth device renamingXen and eth device renaming
Recently I rebooted one of my Debian Xen servers and suddenly all the Ethernet devices which used to be eth0 in the domU’s became eth1. vif = [ ”, ‘bridge=xenbr1’[...]
xen sucksxen sucks
According to Debian bug #399113 and linked discussion it is impossible to run a stable system on Xen without enabling PAE. It seems that no-one is considering the fact that[...]
XephyrXephyr
As part of my work on Xen I’ve been playing with Xephyr (a replacement for Xnest). My plan is to use Xen instances for running different versions of desktop environments.[...]
Xen shared storageXen shared storage
disk = [ ‘phy:/dev/vg/xen1,hda,w’, ‘phy:/dev/vg/xen1-swap,hdb,w’, ‘phy:/dev/vg/xen1-drbd,hdc,w’, ‘phy:/dev/vg/san,hdd,w!’ ] For some work that I am doing I am trying to simulate a cluster that uses fiber channel SAN storage (among other[...]
multiple ethernet devices in Xenmultiple ethernet devices in Xen
It seems that no-one has documented what needs to be done to correctly run multiple Ethernet devices (with one always being eth0 and the other always being eth1) in a[...]