I am looking at rolling Openfire out as the main chat application used in a location I support (500 - 700 desktops) and possibly a second physical location (200+ desktops). I am planning on taking this process slow and start out with a small portion (20 or so) users to see how well it works.
I currently have Openfire installed in a Microsoft Virtual Enviroment with 512MB of RAM dedicated to the box. The Virtual server is a Quad 900 Mhz P3 box with 4GB of total RAM. Right now it is only running one or two other small boxes. I am sure I will outgrow this box especially if we roll it out to all of our users.
When should I look at moving this box to a dedicated server? Also, at what point would I need to look at creating a seperate MySQL database server for it? What kind of specs would I need for (both) server(s) if we roll it out to all users in both centers?
Thank you for your help!