Veritas Volume Manager 5.0 Migration Guide, HP-UX 11i v3, First Edition, May 2008

26 Converting LVM to VxVM

Converting LVM volume groups to VxVM disk groups

Note: It is strongly recommended that you do not rely on vxvmconvert's

mechanisms for unmounting file systems. Conversion will be simpler if you

close applications, and unmount file systems before running vxvmconvert.

To unmount a file system, use the following command:

# umount file-system

Conversion and reboot

During conversion, after the analysis phase is complete, the disks to be

converted are deemed to be conversion ready. The

vxvmconvert program asks if

you are ready to commit to the conversion changes. If you choose to complete

the conversion, the system will try to unmount all of the associated mounted file

systems, stop and export the volume group, and then install the VxVM

configuration.

vxvmconvert is unable to stop and export volume groups or unmount file

systems, the conversion cannot be completed without rebooting the system. You

will have the option of aborting the conversion or completing the conversion by

rebooting the system. If you choose to reboot,

vxvmconvert will trigger the

completion of the conversion automatically, during reboot, when it can be

guaranteed that no processes have access to the volumes that are being

converted.

If you choose to abort rather than reboot to complete the conversion,

vxvmconvert will return to the main menu.

Note: The LVM logical volumes to be converted must all be available to the

vxvmconvert process. You should not deactivate the volume group or any logical

volumes before running vxvmconvert.

To activate a volume group

If you are not certain if the LVM volumes or the corresponding volume groups

are active, you can activate them with the following command:

# vgchange -a y vol_grp_name

7. Converting a volume group

To do the actual conversion of LVM volume groups to VxVM disk groups, choose

option 2 of the

vxvmconvert utility.

vxvmconvert will prompt for a name for the VxVM disk group that will be

created to replace the LVM volume group you are converting. This is the only

object naming that is done through

vxvmconvert. For details on modifying