Ram/CPU recommendations

[BenjS]

Hello everybody

I'm running an virtual server with about 5500 mailboxes. Installed are Kaspersky and MagicSpam for security.
Are there any remcommendations how many vCPUs and RAM the server should have?

What's an "good" load average?

Thanks
Benjamin

 

[IgorG]

Hardware recommendations can be found on page http://www.parallels.com/products/plesk/ in System requirements tab.