Managing SAN Devices and Multipathing in Oracle® Solaris 11.2

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Updated: December 2014

Enabling and Disabling Multipathing

You can use the stmsboot command to enable or disable multipathing for Fibre Channel (FC) and SAS devices. The stmsboot command updates the /etc/vfstab file and dump configuration to reflect device name changes during the next reboot. You do not need to manually edit the fp.conf or mpt.conf files.

    The following considerations apply to the stmsboot –e, –d, and –u options:

  • You should reboot immediately after running the stmsboot command.

  • Because the stmsboot command reboots the machine to complete the operation, use the eeprom to ensure the system boots from the current boot device.

  • The stmsboot command saves a copy of the original /kernel/drv/fp.conf, /kernel/drv/mpt.conf, and /etc/vfstab files before modifying them. See Appendix C, Troubleshooting Multipathing-Related Problems if you encounter unexpected problems while using the stmsboot command.

Note - In previous Oracle Solaris releases, the stmsboot command was used to enable or disable multipathing on the boot device only for SPARC based hosts only. In current Oracle Solaris releases, the command is used to enable or disable multipathing on serial-attached SCSI devices as well as FC devices.