Month: January 2007

Xen 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 things). The above is the disk line I’m using for one of my cluster nodes, hda and hdb are the root and swap disks for […]


multiple 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 Linux Xen configuration (or if it is documented then google wouldn’t find it for me). vif = [ ‘mac=00:16:3e:00:01:01’, ‘mac=00:16:3e:00:02:01, bridge=xenbr1’ ] Firstly I use […]


installing Xen domU on Debian Etch

I have just been installing a Xen domU on Debian Etch. I’ll blog about installing dom0 later when I have a test system that I can re-install on (my production Xen machines have the dom0 set up already). The following documents a basic Xen domU (virtual machine) installation that has an IP address in the […]


free software liason?

In my previous work as a sys-admin I have worked for a number of companies that depend heavily on free software. If you use a commercially supported distribution such as Red Hat Enterprise Linux then you get high quality technical support (much higher than you expect from closed-source companies), but this still doesn’t provide as […]