VERITAS Volume Manager 3.5 Migration Guide (September 2004)

Chapter 2
Converting LVM to VxVM
Restoring the LVM Volume Group Configuration
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To use this method, you must have backed up data located on all the volume groups’ logical volumes before
conversion to VxVM.
Restoration of LVM volume groups is a two-step process consisting of a restoration of LVM internal data
(metadata and configuration files), and restoration of user or application data.
The process is limited to restoring the state of the logical volumes as they existed prior to conversion to VxVM
disks. If the data has changed on the volumes during the time they were VxVM volumes, those changes are
lost once you restore the LVM configuration and saved user data.
To do a full restoration of the original LVM configuration, do the following:
Step 1. Use vgrestore to restore LVM internal data.
# vgrestore vol_grp_name
Step 2. Use the recovery method to restore user or application data. In preparation for conversion, the
recovery method should have been done with the standard backups you made in preparation for
conversion. The following example shows an frecover from the fbackup example in step “4.
Backing up your LVM configuration and user data” on page 14.
# mount -F vxfs /dev/vg01/lvol3 /foodir
# frecover -r -f /dev/rmt/c0t0d0BEST