[CentOS] Virtualization - what do You recommend?

Tom Bishop bishoptf at gmail.com
Tue Feb 2 22:40:34 UTC 2010

So I have tried and used most, I am anxious to see redhats next version of
KVM stuff that will make it into rhel 6, whenever that is, once the
management tools on LINUX catch up I will be moving towards that.  I am
currently using vmware server 2 on centos 5.4 and while there were some
issues there are documented work arounds and once up it has been very
stable.  The web interface is not anywhere near as good as the 1.x client it
gets the job done since I don't run windows natively anywhere.  The
bottleneck with almost all of the virtualizations is IO depending on # of
hosts and disk layout can affect them.  The bare kernel hypervisors like
esxi and proxmox etc will tend to have better performance but then you will
be unable to run native things on the server also, which is what I do and it
works nicely for what I want to accomplish.

On Tue, Feb 2, 2010 at 11:29 AM, Les Mikesell <lesmikesell at gmail.com> wrote:

> On 2/2/2010 11:09 AM, Greg Bailey wrote:
> > Les Mikesell wrote:
> >> I have to agree that ESXi is better, but I've had VMware server running
> >> for years (mostly 1.x versions on CentOS 3.x, but also some CentOS 5.x
> >> and VMware 2.x) with no surprises other than jumpy clocks.  The servers
> >> have sometimes been shut down for power work but I've probably had more
> >> than a year of uptime for some intervals on C3 boxes running 3 windows
> >> guests.  I rarely use the vmware console though - I prefer to vnc
> >> directly to the guests once everything is set up.  The one advantage of
> >> Server vs. ESXi is that you can run things on the host natively if you
> >> want.
> >
> > I would say another advantage of Server as opposed to ESXi is that you
> > don't need a Windows box to administer it.  VMware Server version 1.X
> > uses a "server console" that has Windows and Linux clients, whereas I
> > believe VMware Server version 2 is web-based.  VMware ESXi *requires*
> > that you have a Windows machine to install the "vSphere Client".
> That's true, but the windows client doesn't need to be part of your
> production infrastructure - you only need it when making changes or if
> some problem prevents direct access to the guests with vnc/ssh, etc.  A
> laptop or remote desktop works fine - or you could run a windows VM
> under VMware server to install the ESXi setup if you really don't want
> to let windows touch your hardware (which probably came with windows
> installed...).
> --
>   Les Mikesell
>    lesmikesell at gmail.com
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