Now, i have a community on a forum hoster like Proboards. It's very big, over 100k members and an average of 300 users online. I want to move on an indipendent host, of a server. I have a tecnical expert for the server maintenance, i need advice on choice of a a good hoster (managed, of course). I will use Wordpress for a cms and Xenforo for forum. Now, what are the most important parametres for choice a good host for a community? Note that my forum is very busy, but the website on Wordpress is new -> very low traffic. I see that Xenforo is less server intensive that Vbulletin+Vbseo. I have asked help on a friend that has suggested me the "minimal requirement" for a server of a big community: A Intel Dual Core at least 4 gb of ram (minimum) 100 gb of first hd 100 gb of 2° hd (for backup). I see that many hoster offer in the standard plan offers a good cpu but a "little" ram and another offer a worst cpu with a great ram...what more important? What's the difference between raid 1 and raid 2 of hd?