Sun has recently published a whitepaper that discusses how the Solaris OS will take advantage of the next generation Intel Xeon processor (codename Nehalem-EX) for expandable servers (4 sockets & greater).  Sun with over 20 years of experience in larger socket, core & threading capabilities is working to have the Solaris OS be ready to take advantage of the features & new capabilities of “Nehalem-EX”.  The three areas of collaboration for Solaris & Nehalem-EX are around  scalable performance; advanced reliability and energy efficiency between the specific features in Solaris and the next generation Intel Xeon processor.  Read this recently published whitepaper