Newbie JEOS question

[Gaute Amundsen]

On Saturday 14 February 2009 17:39:44 Roy Sigurd Karlsbakk wrote:
> > We are just about to set up two virtual servers to replace one
> > physical.
> > Now running Zope, apache, haproxy, varnish, postfix, ++ on quad Xeon
> > 3GHz 12 G
> > ram, and often struggling during peak traffic.
>
> I somehow doubt that virtualizing the server will help speed things
> up. virtualization will always add overhead, and smp-guests certainly
> imposes rather a lot of overhead. I would think the linux schedulers
> (at least one of them) are probably better suited to run the load
> efficiently than using separate VMs.

We're not virtualizing on the same hardware if that's how you read me. :)
I don't know what hardware they will be running on precisely, but there is a 
SAN, and redundant locations, and I presume CPUs a few years newer than ours, 
so I don't worry too much. Ram usage, on the other hand, which is now a major 
billable item, that is a challenge. Zope can be a real hog if you let it..

I guess we're virtualizing for mostly the same reasons as everyone else:
outsourcing hardware worries, more flexible expansion path, compartmentalizing 
some services, etc. etc.

> I all pedagogikk er det essensielt at pensum presenteres
> intelligibelt. Det er en elementært imperativ for alle pedagoger å
> unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de
> fleste tilfeller eksisterer adekvate og relevante synonymer på norsk.

Hvorfor utilisere xenonymer når det finnes adekvate domestikerte substitutter?

Gaute