Here is the specification I run it on (VPS Servers) - OpenVZ (the node is managed by me and therefore the allocations are dedicated).
50GB RAM
6 Core Intel Xeon E5 CPU
1.2 TB SSD
and the typical usage with 100 customers is at: 2% RAM Usage and 1 Core being used, with a lot of my customers using Wordpress and Magento with alot of plugins.
The lowest I tried Sentora on was the following spec (for 10 websites and it worked great!):
1GB RAM
50GB Storage
50GB RAM
6 Core Intel Xeon E5 CPU
1.2 TB SSD
and the typical usage with 100 customers is at: 2% RAM Usage and 1 Core being used, with a lot of my customers using Wordpress and Magento with alot of plugins.
The lowest I tried Sentora on was the following spec (for 10 websites and it worked great!):
1GB RAM
50GB Storage