On Wed, 2008-04-30 at 13:39 -0700, Tracy R Reed wrote:
> Lan Barnes wrote:
> > This is one of those recurring stories, like "Popular Mechanics's" flying
> > car. Still, with the exception of #7 (Xen --because it has been recently
> > debunked here), I think she nailed it
>
> Huh? Xen works as advertised and it is great. It is saving my company
> tons of money and gives us capabilities we did not have before which
> helps us react quickly to our clients needs. I wouldn't say it has been
> "debunked" at all.
>
...and I will add that plenty of people are buying servers from us to
perform server consolidation and setting up tons of Xen VMs on a single
bigger box. My theory is that people make more "machines" total when
they can make virtual ones, which ultimately sells more hardware than
actually needed since the VMs need RAM to exist.
The issues we see are that the Xen enabled kernels for Ubuntu 7.10 and
Debian 4.0 (haven't tried 8.04 yet) do not have some of the drivers we
need for our hardware. So, we have to be careful to ask if people plan
on using Xen if they buy the servers that Xen kernels don't have the
drivers yet. We have had some customers try (succeed ???) to compile
them in, but most just want the pre-compiled binary kernel packages to
work. Specifically, our issue is with the 3ware 9650SE RAID card.
A smaller number of our customers use VMware and there are no driver
issues there. Again, they make more "machines" than they would have if
they used a whole piece of hardware for each machine.... because it's
just so much cheaper to add a VM. Ironically, I am sure we sell more
real servers because of virtualization. It certainly doesn't NEED to be
that way. How *you* use virtualization is up to you ! :o)
--
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Michael J. McCafferty
Principal, Security Engineer
M5 Hosting
http://www.m5hosting.com
You can have your own custom Dedicated Server up and running today !
RedHat Enterprise, CentOS, Ubuntu, Debian, OpenBSD, FreeBSD, and more
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