by Joe Clabby, President, Clabby Analytics. Updated from a November 2009 publication There is a major shakeout underway in the midrange/high-end server marketplace as sales of Sun SPARC/CMT (cellular multi-threading) and Hewlett-Packard (HP) Itanium-based servers decline significantly — and as new, more powerful versions of Intel’s Xeon and IBM’s POWER micro-architectures come to market.