This migration guide contains two sets of instructions:
Upgrading Your SAN Software” if you already have Intel-based metadata
controllers and you want to update Xsan to version 2.2 and, optionally, update
Mac OS X on your SAN computers to version 10.6.
Upgrading Both SAN Hardware and Software” if you need to replace your
current PowerPC-based controllers with Intel-based computers in addition to
updating the Xsan and Mac OS X software.