VERITAS Volume Manager 5.0 Migration Guide (September 2006)

49Command differences
LVM and VxVM command equivalents
lvreduce Decreases disk space
allocated to a logical
volume.
vxassist Decreases a volume in size with the
shrinkto or shrinkby
parameters.
Example: vxassist shrinkto
vol_name 200M
Make sure you shrink the file system
before shrinking the volume.
lvremove Removes one or more
logical volumes from a
volume group.
vxedit
vxassist
Removes volumes with the -rf rm
parameters.
Example: vxedit -rf rm
vol_name
Removes a volume with the
remove volume parameters.
Example: vxassist remove
volume vol_name
lvsplit Splits a mirrored logical
volume into two logical
volumes.
vxassist
snapshot
The snapshot operation takes one
of the attached temporary mirrors
and creates a new volume with the
temporary mirror as its one plex.
Example: vxassist snapshot
vol_name new_volume
lvmerge Reverses and converts
the lvsplit logical
volumes to a single
logical volume.
vxassist
snapback
The snapback operation returns the
snapshot plex to the original volume
from which it was snapped.
Example: vxassist snapback
new_volume
Table 3-1 Command comparison
LVM Description/action VxVM Description/action