VERITAS Volume Manager 5.0 Migration Guide (September 2006)

56 Command differences
Comparison of LVM and VxVM tasks
LVM Export and deactivate an LVM volume
group, and its associated logical
volumes.
vgchange -a n vol_group
vgexport /dev/vol_group
VxVM Deport a disk group to disable access to
the specified disk group. A disk group
cannot be deported if any volumes in
the disk group are currently open.
vxdg deport disk_group
Option 9 in the vxdiskadm menu performs
this task.
LVM Back up volume group configuration
information.
vgcfgbackup -f /pathname/filename
vol_grp
VxVM Back up volume group configuration
information.
dgcfgbackup -f /pathname/filename
vol_grp
LVM Restore volume group configuration to
a particular physical volume.
vgrestore -n /dev/vol_grp /dev/
rdsk/disk_name
VxVM Restore volume group configuration to
a particular physical volume.
dgcfgrestore -n /dev/vol_grp /dev/
rdsk/disk_name
LVM Increase or decrease secondary swap
space.
Enlarge an existing swap logical
volume, or add a new swap logical
volume.
lvextend—to increase swap space
lvreduce—to decrease swap space
VxVM Add a new swap volume (HP-UX 11i
Version 1.5 only).
vxassist make swapvol2 size (HP-UX
11i Version 1.5 only)
LVM Remove a volume group.
This destroys a volume group by
removing its last disk and removing it
from /etc/lvmtab.
vgremove /dev/vol_grp
This is preceded by lvremove and
vgreduce down to the last disk.
VxVM Destroy a disk group. vxdg deport disk_group
vxdg init disk_group
Table 3-2 LVM and VxVM task comparison
Task
type
Description Example
Example for a disk_group = veritasdg, medianame = disk01, vol_name -= veritasvol, plex name =
veritasvol-01, subdisk -= disk01-01, devicename = c0t0d0.