Veritas Volume Manager 5.0.1 Migration Guide, HP-UX 11i v3, First Edition, November 2009

root volume can be converted (as long as this volume is not in the same volume

group as the root volume).

■ Volume group disks used in MC/ServiceGuard clusters.

The conversion process does not support conversion of any volume group that

is marked as a member of a MC/ServiceGuard or OPS Edition high availability

cluster. The volume group must be deactivated and removed from membership

in the high availability cluster before it can be converted.

■ Volume groups and logical volumes with large number of characters in the

name.

If you convert an LVM volume group with more than 31 characters in the

volume group name, VxVM will retain only the first 31 characters of the LVM

volume group name. Conversion of a logical volume containing more than 28

characters in the logical volume name is not supported.

See “About conversion error messages” on page 79.

■ Volume groups or logical volumes containing special characters

Conversion of volume groups or logical volumes containing special characters

like #, $, *, _ in the name, is not supported.

■ Volume groups used for cluster lock disks.

The conversion process does not support conversion of a volume group that

contains a disk that is being used for a cluster lock disk for an MC/ServiceGuard

cluster.

■ Volume groups with any disks that have bad blocks in the bad block directory.

Unlike LVM, VxVM does not support bad block revectoring at the physical

volume level. If there appear to be any valid bad blocks in the bad block

directory of any disk used in an LVM volume group, the group cannot be

converted.

See “About conversion error messages” on page 79.

■ Volume groups with mirrored volumes.

A conversion fails if the LVM volume group being converted has mirrored

volumes, but the system does not have a valid license installed that enables

mirroring for VxVM.

The analyze option in vxvmconvert, which is described in later sections, aids you

in identifying which volume groups can be converted.

Conversion process summary

Several steps are used to convert LVM volume groups to VxVM disk groups. Most

of these steps can be done with the vxvmconvert utility. All the steps are not

compulsory, and some may have to be followed only if there are problems during

Converting LVM to VxVM

Converting LVM volume groups to VxVM disk groups