If you wish to configure a secondary boot path for a partition, use the standard operating system utilities available on the partition after commissioning your partition.
To configure a secondary boot path for your partition on the external storage device, do the following:
Use the Fabric Manager user interface to commission a partition on the external storage device, specifying only the primary boot path.
After the operating system is loaded on the LUN in the external storage device, access the partition desktop and configure settings for multiple paths (for example, multi-path IO capability) in the operating system and any applicable software.
On the external storage device, configure an additional path to the boot LUN through another HBA port assigned to the partition.
Note: For Windows partitions, be sure to perform this step after the partition is commissioned. The Windows Preinstallation Environment (WinPE) that installation scripts run under during commissioning does not support multiple paths to the boot LUN.
Access the partition, and use the Emulex OneCommand® Manager (OC Manager) running in the partition operating system to configure the secondary HBA port as a valid boot path to the boot volume.
The secondary boot path is now available on subsequent boots of the partition if the primary boot path is not available.