The zones parallel patching enhancement to the standard Solaris 10 patch utilities increases the patching tools performance on systems with multiple zones by allowing parallel patching of the non-global zones. In releases prior to Solaris 10 10/09, the feature is implemented through the patch utilities patch 119254-66 or later revision for SPARC and 119255-66 or later revision for x86. The global zone is still patched before the non-global zones are patched.
For more information, see the following: