VERITAS Volume Manager 4.1 Migration Guide

Converting LVM to VxVM
Examples
Chapter 2 33
c0t8d0 dg0801 dg08 online
c0t9d0 - LVM
c0t10d0 disk01 rootdg online
c0t11d0 - - online
Disk group: rootdg
Example of the vxprint output after conversion:
TY NAME ASSOC KSTATE LENGTH PLOFFS STATE TUTILO PUTIL0
dg dg08 dg08 - - - - - -
dm dg0801 c0t8d0 - 2080768 - - - -
v dg08lv1 fsgen ENABLED 102400 - ACTIVE - -
pl dg08lv1-01 dg08lv1 ENABLED 102400 - ACTIVE - -
sd dg0801-01 dg08lv1-01 ENABLED 102400 0 - - - -
vxprint Explained The vxprint list given above provides the following information:
• The disk group dg08 contains the VxVM disk dg0801 and the volume dg08lv1. The VxVM
disk dg0801 is associated with disk device c0t8d0 and is 2080768 blocks in length. The
volume dg08lv1 is of type fsgen, is enabled in the VxVM kernel driver, is of length 102400,
and is in the ACTIVE state. This means that the volume is started, and the plex is
enabled. Operations to the volume such as recovery and data access will be governed by
the usage type fsgen.
• The plex dg08lv1-01 is associated with volume dg08lv1, and maps the entire address
range of the volume. Associated with the plex is one subdisk, dg0801-01 which maps the
plex address range from 0 to the entire length of the plex, i.e. 102400 blocks. As implied by
the root of its name, the subdisk dg0801-01 uses an extent from the VxVM disk dg0801.
Example: VxVM to LVM rollback
Volume Manager Support Operations
Menu: VolumeManager/LVM_Conversion
1 Analyze LVM Volume Groups for Conversion
2 Convert LVM Volume Groups to VxVM
3 Roll back from VxVM to LVM