On 11/7/07, michael nt milne <michael.milne@gmail.com> wrote:
yes I realise about the single point of failure. Ideally of course we'd have separate physical servers for this. It's an intranet so security is less of an issue. There just seem to be advantages from running virtual machines. I'm not an expert but aren't they easier to manage, rollback and back-up?
that depends entirely on your needs. Copying away the Zope tree and the instances' products and extensions every time you change something on it and copying away the Data.fs every x hours isn't exactly hard, is it? And it requires less space. Having a VM lying aroung just to copy-over and run is also handy, but you need more resources. You decide. Design your backup/restore process well, when you need it you probably won't have much time thinking about it.
Interesting that a VM service would only require the RAM that Zope requires normally. You would naturally think that the VM service would take up quite a bit of RAM itself?
I didn't say that. I just said, that respective to zope's RAM usage its irrelevant, whether it is inside a VM or not. Of course you need the RAM for the VM itself. --knitti