Multipathing software enables you to define and control redundant physical paths to I/O devices such as storage devices and network interfaces. If the active path to a device becomes unavailable, the software can automatically switch to an alternate path to maintain availability. This capability is known as automatic failover. To take advantage of multipathing capabilities, you must configure the server with redundant hardware, such as redundant network interfaces or two host bus adapters connected to the same dual-ported storage array.
Oracle Solaris 10 documentation and the Oracle Solaris SAN Configuration and Multipathing Guide at http://www.oracle.com/pls/topic/lookup?ctx=solaris10
Oracle VM Server for SPARC documentation and the Oracle VM Server for SPARC 3.5 Administration Guide at http://www.oracle.com/goto/vm-sparc/docs