RE: [Xen-users] LVM's inside of Domu's

[Jeff Sturm <jeff.sturm@xxxxxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-
> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Fajar A. Nugraha
> 
> On Tue, Apr 13, 2010 at 4:34 AM, Donny Brooks
<dbrooks@xxxxxxxxxxxxxxxx>
> wrote:
> > Back when I started messing with Xen (a year or so ago), I read
where it was not
> good to have a domu setup with LVM inside of it if the storage on the
Dom0 was LVM
> also.
> 
> "not good" is relative. RedHat would say its benefit outweights its
drawbacks.

The "benefit" I can see is that the domU disk image with partitions and
LVM remains compatible with Kickstart.  But there are other ways to
bootstrap a Red Hat or CentOS image.

I'm seeing us move rapidly towards a model in which all our hosts are
virtualized, but the Linux distribution we use remains encumbered by
features designed for bare iron deployments.  I hope a new OS will
emerge some day--one optimized for virtualization.  Eliminate the
old-fashioned boot loader, disk partitions, block schedulers, RAID
options, etc.  Move simple network services into dom0, or maybe stubdom.

Basic Red Hat installs now require 1GB+ disk and 256MB RAM to be usable.
That's because the OS bundles every package it will need to run
standalone on bare iron.  I realize disk/memory are now a cheap
commodity but the bloat reminds me of some of the reasons I left behind
a certain proprietary OS.

-Jeff



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