Dynamic Root Disk and MirrorDisk/UX

16. This release of DRD does not copy the contents of the HPSP to the clone. There are two methods
you can use to populate the service partition on both the clone and the mirror. One alternative is
to use the HP Itanium Processor Family Diagnostics and Utilities CD to install the diagnostics to
one or more of the disks. If the diagnostics have already been installed to the original system
disk, the dd command can be used to copy them to both the clone and its mirror:
To see if the diagnostics are installed on the original boot disk, execute the command:
For 11iv2 Integrity:
# /usr/sbin/efi_ls –d /dev/rdsk/disks3
For 11iv3:
# /usr/sbin/efi_ls –d /dev/rdsk/disk_p3
If present, copy them with the following dd commands:
For 11iv2 Integrity:
# /usr/bin/dd if=/dev/rdsk/disks3 of=/dev/rdsk/clone_disks3 bs=1024k
# /usr/bin/dd if=/dev/rdsk/disks3 of=/dev/rdsk/mirror_disks3 bs=1024k
For 11iv3:
# /usr/bin/dd if=/dev/rdsk/disks3 of=/dev/rdsk/clone_disk_p3 bs=1024k
# /usr/bin/dd if=/dev/rdsk/disks3 of=/dev/rdsk/mirror_disk_p3 bs=1024k
Notifying DRD that the Booted System has Been Mirrored
After mirroring vg00, DRD should be notified that the booted system has been mirrored. In this way,
if the inactive system image is later booted, the current system can then be mounted by executing drd
mount.
To notify DRD that the booted system has been mirrored, issue the following command:
# /opt/drd/bin/drd_register_mirror mirror_disk
Updating the Inactive Image with the Changes
With the changes described above, the current HP-UX system and the DRD commands will work
correctly on the booted system. However, it may be desirable in the future to boot back to the
inactive system image. Both of the following changes must be made to the inactive system image to
prepare for the possibility of a boot:
• The DRD infrastructure must be updated.
• The LVM infrastructure must be updated.
In the future, the update of the DRD infrastructure on the inactive image will be incorporated into DRD
commands. For this release, the registry file itself must be copied from the booted system to the
inactive system image with the following commands: