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 virtual disks (VDisks) that are controlled by the SAN Volume Controller.

1. Shut down the host.
2. Perform 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 being migrated to SAN Volume Controller control.
3. Zone one port of each host bus adapter (HBA) to one of the SAN Volume Controller ports that is associated with the I/O group for the target image-mode VDisk.
4. Perform the following configuration changes on the SAN Volume Controller:
   1. Create an image-mode VDisk 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 SAN Volume Controller port in step 3.
   3. Map the image mode VDisk 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 required. For example, you might map the swap disk to the host with SCSI LUN ID 1.
5. Change the host's boot address by using the following steps:
   1. Use the init command to re-initialize the system and use the wwidmgr utility before booting the operating system.
   2. Set the primary boot path to the hardware path of the LUN mapped from the SAN Volume Controller.
6. Zone each HBA port to one port on each SAN Volume Controller node.
7. Add HBA ports to the host object that you created in step 4.b.
8. Map any further VDisks to host as required.