Sun provides a Firmware Flash Utility for updating the expander firmware on SPARC and X64 based platforms. This unbundled product requires the Solaris 10 10/08 OS or later. Here are installation instructions from a Sun engineer.
From SysOp - 02 Jul >
This article from the docs.sun.com group describes the management of Solaris Containers using Sun xVM Ops Center, with tips on discovering, patching, and monitoring zones.
New BigAdmin section that highlights threads from the Sun Forums that could be helpful. If you find a thread that answers a question, submit it for some Bucks!