RE: [Xen-users] Increasing the number of virtual machines

["Fred Zinsli" <fred.zinsli@xxxxxxxxxxxxx>]

With the aid of comments here, and some help in #debian (IRC) I have found
out that the kernel I was using for my xen host was compiled without loop
support and hence it would never see more than 4 doms. I didn't compile my
own kernel as I don't have that experience, and getting to grips with
virtualization on its own is proving to be a big enough task.

Many thanks for the comments and advice.

I am now setting up my doms again on the rebuilt server and I will see how
that tests.

Regards

Fred

-----Original Message-----
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
To: <fred.zinsli@xxxxxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Cc: 
Date: Tue, 2 Dec 2008 20:21:39 +1100
Subject: RE: [Xen-users] Increasing the number of virtual machines

> > All of the doms create without error.
> > I can start them all in the normal way. No errors
> > When I do xm list I only see the first 4 doms I created.
> > I can ping only the first 4 doms I created.
> > I can only enter the console of the first 4 doms I created.
> > 
> > I have used this howto as a starting point for my solution.
> > http://www.howtoforge.com/perfect_setup_xen3_debian
> > 
> > There are no errors generated to the screen or log files that I can
> find.
> > 
> 
> As someone else pointed out, 4 is the default limit for the number of
> loop devices (loop makes a block device out of a file), and your domain
> will use one for every file: device in every domain, which may or may
> not be your problem.
> 
> If loop is a module, stop all of your domains, 'rmmod loop', then
> 'modprobe loop max_loop=32', then see how many you can start. If that
> fixes it, then edit your modules config to always load loop with
> max_loop=32
> 
> James
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users



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