The Redhat docs for KVM are here.
Red Hat Enterprise Linux
Sorry for Hijacking the thread!
in centos you install the virtual server tools package upon installation and do a yum update when you boot into centos, or just add the package manually and do a kernel update.
timbo343. We have decided on 2 hosts and a SAN and will be going towards Xen - plenty of advice on here for that. We are looking at the middle license which does cost money but adds some extra bits to the free version (we are still discussing this).
In addition we are going to budget for a kick-ass UPS to power all of this. (Still researching).
We are going to do this ourselves and with questions asked of Google and Edugeekers. We are not sure what to do - but have setup a little test network of two machines in a cluster to trial. We are currently running the trial and it seems to be okay.
The main issue is we have no idea if we are doing this right. Are we wasting money? Are we going to be okay for the next few years? We are replacing 7 servers (hangover from RM days and 4DCs) and moving them onto two servers. We will be moving a printer server (pCounter), an SME server and a few other bits.
We don't have a DC onsite - there are central DCs in the LEA - however due to the outage issues in Swansea LEA last week we feel that a DC on site would help. Can this be virtualised? I've heard/read on Google that DCs should not be virtualised, however as this isn't a 'main' DC I got the impression that it didn't matter. It's the one main DC that shouldn't be converted. What are the opinions on this?
DC's not virtualized ?? Never heard of this it makes no difference in fact I'd recommend you do!!!! For a start it means if need be you can move VM's from Server to server if you needed to do an upgrade etc etc - Our DC's and Exchange servers are all virtualized ..... I wouldnt recommend otherwise and definitely have one on site!
Another big thumbs up for Xenserver here, running 3 hosts (pooled) with HA for the cost of £1200 (£400 per host for the HA license) attached to Sun 7110 for VM's running 12 servers load balanced between the three.
I wouldn't virtualise my DC not until I had a proper system in place to bring to take them down and back up again in the proper order if ever a power cut ensued. I haven't got round to this yet but will do when I have the time and the money.
Installation is fairly simple just download the ISO image burn it to disk and then boot from disk and follow the instructions.
The SAN and 2 nics of the hosts are on a different IP range running through 2 gig switches to allow for failover the other 2 nics are load balanced and belong to the network LAN so no bandwidth issues as data just flows back and forwards from the XEN hosts to the SAN.
Has worked very well for over a year in fact thats how long they have been up for hehe!
I have not updated from version 5.6 sp2 yet to version 6 as it has a couple of issues at the moment.
Very happy at the moment. :)
Version 5.6 also :)