Re: [Xen-users] mail server on a xen guest?

[Andy Burns <lists.xensource.com@xxxxxxxxxxxxxx>]

On 05/07/2008 17:25, Peter Peltonen wrote:

> I'm building a new qmail based mail server. I now have a quad-core
> server with 8 gigabytes of RAM and RAID-5 disk setup. I need to run a
> virtual web server on that host too, so I'm installing Xen on that
> host.  What I am wondering now is should I install qmail also on a
> virtual server (domU) or on the master server (dom0)? 
I'd say in it's own domU, given you've installed xen, incidentally (not 
a trick question!) why did you pick xen for the web server?
> Has anyone
> experience about running qmail under xen domU? I could dedicate 1-2
> cores for the qmailtoaster domU and lots of RAM, but I'm a bit worried
> about disk I/O, as I've read that this can be a bottleneck in Xen. 
my dom0 hardware can sustain over 320MB/s, a linux domU on that box gets 
140MB/s and a windows domU up to 50MB/s
> I'd
> like to hear stories like "I've run mail server on a domU with 100
> active domains and 10 000 incoming messages a day without problems)"
> :)
Can't say I have, but that doesn't sound *so* challenging, I'm sure my 
laptop gets half that amount of spam a day ;-)
I do run a postgres/dovecot/squirrelmail server on a domU with about 20 
domains, volumes are lower, but I don't think it'd worry me if they went 
up ten fold ...


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users