VMware for Cyrus?

[Sebastian Hagedorn]

--On 9. November 2009 14:10:54 +0100 Simon Matter <simon.matter at invoca.ch> 
wrote:

> While virtualization has advantages it has also disadvantages. One thing
> is that it introduces an additional layer of complexity into the game.
> It's my impression that in many areas virtualization gets introduced not
> because of technical reasons but because of political pressure.

In our case I wouldn't necessarily call it political pressure ... it's more 
like organizational pressure. We have fewer personnel resources than we 
used to, and have to run more systems with them!

> For a high power, mission critical system like a mail cluster I'd stick
> with real iron as long as possible. That may sound old fashioned but is
> what I would do after everything I've seen. You will need the irons
> anyway, with or without virtualization. Did I miss something?

Maybe. Ideally you save irons by putting more than one VM on each. For the 
mail cluster that may or may not be an option. I think it might, because as 
I mentioned the current boxes are 5+ years old. So I'd think with brand new 
hardware we would get away with less than 100% on each box.

The main advantage that ESX would offer is in employing VMotion, VMMware HA 
and such. It adds a layer of complexity, but also a layer of security and 
convenience.
-- 
     .:.Sebastian Hagedorn - RZKR-R1 (Gebäude 52), Zimmer 18.:.
                 .:.Regionales Rechenzentrum (RRZK).:.
.:.Universität zu Köln / Cologne University - ✆ +49-221-478-5587.:.
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