Procedure A

1. Stop the Sun Cluster software on the current node:

   # scadmin stopnode

2. If the simple partition for rootdg is on the boot disk, find a separate partition (two cylinders in size) that is not on the boot disk. If the simple partition for rootdg is not on the boot disk, proceed directly to Step 10.

3. Use the format command to reserve and label the new partition:

   # format c0t3d0

   Make c0t3d0s7 the new partition, two cylinders in size.

4. Define the new partition to CVM:

   # vxdisk -f init c0t3d0s7

5. Add the new partition to rootdg:

   # vxdg adddisk c0t3d0s7

6. Add the new rootdg partition to the volboot file:

   # vxdctl add disk c0t3d0s7

7. Use the format command to free up the old disk partition:

   # format c0t0d0

   This frees up the space for partition c0t0d0s5.

8. Remove the original disk from rootdg:

   # vxdg rmdisk c0t0d0s5 # vxdisk rm c0t0d0s5

9. Clean up the old partition of rootdg in the volboot file:

   # vxdctl rm disk c0t0d0s5

10. Enter vxdiskadm to encapsulate the boot disk (c0t0d0 in this example):

    # vxdiskadm -Select an operation to perform: 2 -Select disk devices to encapsulate: [,all,list,q,?] c0t0d0 -Continue operation? [y,n,q,?] (default: y) y -Which disk group [,list,q,?] (default: rootdg) rootdg -Use a default disk name for the disk? [y,n,q,?] (default: y) n -Continue with operation? [y,n,q,?] (default: y) y -Continue with encapsulation? [y,n,q,?] (default: y) y -Enter disk name for [,q,?] (default: disk01) disk01 -Encapsulate other disks? [y,n,q,?] (default: n) n -Select an operation to perform: q

    Verify each step carefully.

11. Reboot the system:

    # shutdown -g0 -y -i6

    The system will reboot one more time to complete the process.

    Your boot disk is now encapsulated and managed by CVM.

12. To verify the encapsulation:

    1. Invoke vxva and open up the icon of the rootdg disk group.

       You should see the encapsulated boot disk and the four volumes that have been created from it.

    2. Verify that the /etc/vfstab file now refers to device files in the /dev/vx/dsk directory rather than the /dev/dsk directory.

13. To mirror the encapsulated disk, choose a disk (for example, c0t2d0) and a media name (for example, mirrorroot), and enter:

    # /etc/vx/bin/vxdisksetup -i c0t2d0 # /usr/sbin/vxdg adddisk mirrorroot=c0t2d0

    You should now see the new disk in the rootdg disk group of vxva.

14. Mirror the encapsulated boot disk on mirrorroot:

    # /etc/vx/bin/vxmirror disk01 mirrorroot

    The vxmirror command prints a series of commands corresponding to the mirroring of volumes in the encapsulated boot disk.

15. After the vxmirror command is completed, verify that the process was successful by looking for the mirrored volumes in the rootdg disk group of vxva.

    It is now possible to boot from the mirror of the boot disk.

16. Remove the two-cylinder simple disk in the rootdg disk group:

    # vxdg rmdisk c0t3d0s7 # vxdisk rm c0t3d0s7 # vxdctl rm disk c0t3d0s7

17. Start the Sun Cluster software:

    # scadmin startnode

18. If you wish to mirror the other system, repeat Procedure A.

19. Un-encapsulate the boot disk.

    When you upgrade your system or the volume manager you need to un-encapsulate the boot disk first. Use the script provided under /CD_path/CVM/scripts called upgrade_start to automatically convert the file systems on volumes back to regular disk partitions. Reboot the system to complete the conversion to regular disk partitions.