Although not a strict requirement, Solaris I/O Multipathing should be enabled for all storage used on the server (SAS, FC, iSCSI). Solaris I/O Multipathing provides higher availability for storage devices through the use of multipathed connections. On a default Solaris installation, Solaris I/O Multipathing is enabled only for SAS controllers using the mpt_sas driver, but it is not enabled for Fibre Channel and iSCSI controller ports. For more information about Solaris I/O Multipathing, refer to Oracle Solaris 11.1 Configuration: SAN Configuration and Multipathing at:

http://docs.oracle.com/cd/E26502_01/html/E29008/index.html

Enabling Solaris I/O Multipathing

To enable Solaris I/O multipathing on all supported multipath capable controller ports, use the stmsboot command:

# stmsboot -e

Note that device names change once under Solaris I/O multipathing control, and a reboot is required for changes to take effect.

For more information about enabling Solaris I/O Multipathing, refer to section Enabling and Disabling Multipathing in Oracle Solaris 11.1 Configuration: SAN Configuration and Multipathing available at:

http://docs.oracle.com/cd/E26502_01/html/E29008/gfpvv.html#gfpws

Third-Party Storage Devices

Using Solaris I/O Multipathing with a third-party storage device may require additional configuration. If you have enabled Solaris I/O multipathing using the stmsboot and you are using a third-party storage device and Solaris I/O Multipathing is not effectively enabled for that storage device, then refer to Configuring Third-Party Storage in Oracle Solaris 11.1 Configuration: SAN Configuration and Multipathing available at:

http://docs.oracle.com/cd/E26502_01/html/E29008/gfjtx.html#scrolltoc