Xen, amd64 and a lot of fun
Yesterday we basically reinstalled the main host for the cduce and mancoosi projects. The Problem was that the machine (a power edge 2950) was installed with a 32 bits system while the Xeon processors...
View Articlemysql + ssl and xen headahe
Well today I tried to understand why our production server (shame shame) has rebooted twice in a row in the last 3 days. The only visible problem in the logs is the infamous xen error : " xen_net:...
View Articlehow to resize a xen image (or any other fs)
This is a small recipe to resize a disk image. In this case I wanted to make it bigger.create a sparse file : dd if=/dev/zero of=xen.img bs=1k count=1 seek=30Mcopy the old file system to the sparse...
View Articlebackup xen images with dar
I've modified a script to backup live xen images with dar. This script uses lvm to snapshot a running VM disk, then mount it read only and uses dar to create an incremental backup. The script is a...
View Articlexen 4 on debian squeeze
It's time to upgrade my xen servers to squeeze. I've already put this off too long and now I've to task to go from etch to squeeze in one long step. In order to avoid problems I just did a first...
View ArticleMore on Xen 4.0 setup on squeeze
After the upgrade of last week, I didn't have any major problems : xen 4 seems pretty stable and does its job well. One problem I encountered the other day was about the dom0 balloning. By default, xen...
View ArticleXen brouter setup
A while ago I received a new desktop machine (8 cores, 8Gb of memory ...) at work. Since for the moment I kinda happy to work on my laptop using an external screen, I decided to put the hw to a good...
View Articlehow to create VMs with ganeti / xen and dnsmasq
I'll start here a small series of posts about ganeti, xen and puppet. For my work I run few servers sitting on xen and it has always been a bit of a pain to create a new instance and keep it up to...
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