oVirt Engine
* Minimum - Dual core server with 4 GB RAM, with 25 GB free disk space and 1 Gbps network interface.
* Recommended - Dual Sockets/Quad core server with 16 GB RAM, 50 GB free disk space on multiple disk spindles and 1 Gbps network interface.
Hiába no, JBoss szereti a RAM-ot.