Solaris 7 (SPARC Platform Edition) Installation Library

SPARC: Dynamic Reconfiguration for Hot-Pluggable System Boards

Dynamic reconfiguration (DR) allows the service provider to add, or remove and replace, hot-pluggable system boards in a running system, eliminating the time lost in rebooting. Also, if a replacement board is not immediately available, the system administrator can use DR to shut down a failing board while allowing the server to continue operations. Only certain SPARC servers support this version of DR.

See your hardware manufacturer's documentation for information about whether DR supports your server.