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On Tue, 3 Jul 2007, Gerry Reno wrote:
> Hi Joe,
> If I might ring in for a moment. Did you get a chance to attend the
> OpenVZ session?
I sat there for about 5mins and left. The talk wasn't very
good (at least for me) and I couldn't see I'd get anything
out of it.
> Hopefully they explained how virtual servers (VE's) are
> different from VM's.
no.
> VE's are basically just kernel-based supercharged chroot
> environments. The all share the same running kernel. That
> is why Rio was saying that you don't have the overhead of
> 84 separate running kernels. VE hosts are just huge
> schedulers for the apps that run inside the VE's. There is
> very little wasted resources. You can get many many more
> VE's on a host that you can VM's. And that is why I think
> in the future there will be about a 50-50 breakdown
> between the VE approach to virtualization compared to the
> VM approach. To the outside you cannot tell the difference
> between a VE and a VM. On the network they both perform
> the same.
I didn't know any of this. I'd assumed that everything was a
VM and didn't know a VE existed. Presumably this hasn't
helped my understanding of virtualisation.
Now to see what Rio has to say.
Thanks Joe
--
Joseph Mack NA3T EME(B,D), FM05lw North Carolina
jmack (at) wm7d (dot) net - azimuthal equidistant map
generator at http://www.wm7d.net/azproj.shtml
Homepage http://www.austintek.com/ It's GNU/Linux!
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