[lvs-users] LVS and OpenVZ

[Joseph Mack NA3T]

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
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