CPU offlining and memory page retirement
By relling on Jul 29, 2004
Later kernels in Solaris 8 and Solaris 9 have implemented CPU Offlining and Memory Page Retirement. You can read more on these in the Sun BluePrint ( R.I.P.) article Solaris Operating System Availability Features by Tom Chalfant.
A question often asked is, "do we see these features being used in the field to reduce outages?" I'm doing a small study on this, and the preliminary answer is "yes!" This is goodness...