Just hoping this won't be closed so i try to ask exactly as i can.
I'm in a need to buy a new server but my idea is to do many things as i can under virtualization. Because i'm a newbie in virtualization, can you point me in the right direction about which parameters should i pay attention? Are there any indicators like "Ready for Windows" stickers or etc. so i'll be sure about this or that will be fine for me?
Is it true bigger is better? Are there any indicators about 'x' Gb RAM can finely handle 'y' virtualized servers simultaneously?
Update (Some clarification on my needs):
I'd like to replace my two non-virtualized LAMP servers with one bigger server. I'm running just the usual services (LAMP, mail, DNS, FTP). The whole point is to reduce the chance of hardware-caused problems, and if it's possible (but it's out of the question here) build a fail-safe system where i'll running three virtualized system and in case of any problem one instance can take over the load from the failed one.
Please note: I'm not looking forward for any maker or exact CPU, just trying to figure out which details are important and which are not.