Migrating existing SAN boot images

If you have an HP AlphaServer host and existing SAN boot images that are controlled by storage controllers, you can migrate these images to image-mode volumes that are controlled by the system.

1. Shut down the host.
2. Make the following configuration changes on the storage controller:
   1. Remove all the image-to-host mappings from the storage controller.
   2. Map the existing SAN boot image and any other disks that are being migrated to system control.
3. Zone one port of each host bus adapter (HBA) to one of the system ports that is associated with the I/O group for the target image-mode volume.
4. Make the following configuration changes on the system:
   1. Create an image-mode volume for the managed disk (MDisk) that contains the SAN boot image.
      Use the MDisk unique identifier to specify the correct MDisk.
   2. Create a host object and assign it to the HBA port that you zoned to the Lenovo Storage V series port in step 3.
   3. Map the image mode volume to the host.
      For example, you might map the boot disk to the host with SCSI LUN ID 0.
   4. Map the swap disk to the host, if it is required.
      For example, you might map the swap disk to the host with SCSI LUN ID 1.
5. Change the boot address of the host by using the following steps:
   1. Use the init command to reinitialize the system and use the wwidmgr utility before you boot the operating system.
   2. Set the primary boot path to the hardware path of the LUN mapped from the system.
6. Zone each HBA port to one port on each system node.
7. Add HBA ports to the host object that you created in step 4.b.
8. Map any further volumes to the host as required.