Enable MPxIO for fibre-channel devices in Solaris10 x86

Tip!!: if you use CAM (Common Array Manager from Sun Microsystems) when you asociate the host's iniciator to the WWN of the hba you should select in the Host Type field "Solaris(with Traffict Manager)"

2.1) To enable it You can either user the commad "stmsboot -e"
Note: Automatically updates "/etc/vfstab"file and dump configuration to reflect the device names changes when enabling or disabling Solaris I/O multipathing.
For more information about this command line go to:http://docs.sun.com/app/docs/doc/819-2240/6n4htdnlh?a=view

2.2) Or you can edit the file "/kernel/drv/fp.conf", at the end of it you should find the default value mpxio-disable="yes", just change the value "yes" to "no" and the feature will be enabled ->mpxio-disable="no". Reboot the server after the modification.
IMPORTANT: before you reboot your system, you should comment your entry in the "/etc/vfstab" file (if you have one)... Why??? you may ask...as soon as you reboot the server, the storage device path had changed, and the entry that you had in the "/etc/vfstab"is not valid, the system is going to try to mount the path entered before and won't find it...Guess what!...the system enter in a maitenance mode.