Deberías poder instalarlo en casi cualquier equipo, aunque las especificaciones recomendadas son las siguientes:
System Requirements
Recommended Hardware
- CPU: 64bit (Intel EMT64 or AMD64)
- Intel VT/AMD-V capable CPU/Mainboard (for KVM Full Virtualization support)
- 8 GB RAM is good, more is better (grab as much as possible)
- Hardware RAID with batteries protected write cache (BBU) or flash protection
- Fast hard drives, best results with 15k rpm SAS, Raid10
- Two or more Gbit NIC (for bonding), additional NIC´s depending on the preferred storage technology and cluster setup
Por lo tanto, con tu PC deberías poder usarlo sin problemas.