VERITAS Volume Manager 3.5 Migration Guide (August 2002)

Chapter 3, Command Differences
Final 24 July 2002 LVM and VxVM Command Equivalents
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lvsplit Splits a mirrored
logicalvolumeintotwo
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.
The snapback operation returns the
snapshot plex to the original
volume from which it was snapped.
Example: vxassist snapback
new_volume
lvsync Synchronizes mirrors
that are stale in one or
more logical volumes.
vxrecover
vxvol start
The vxrecover command
performs resynchronize operations
for the volumes, or for volumes
residing on the named disks
(medianame orthe VxVM name for
the disk).
Example: vxrecover vol_name
media_name
pvcreate Makes a disk an LVM
disk.
vxdisksetup Brings a disk under VxVM control.
Example: vxdisksetup c0t3d0
Option 1 in the vxdiskadm menu
adds or initializes one or more
disks.
pvdisplay Displays information
about physical
volumes in a volume
group.
vxdisk list Lists information about VxVM
disks.
Example: vxdisk list
disk_name
pvchange Sets physical volume
characteristics to
allow/deny allocation
of additional physical
extents from this disk.
vxdisk
vxdisk set
vxedit
The vxdisk utility performs basic
administrativeoperationsonVxVM
disks. Operations include
initializing and replacing disks, as
well as taking care of some
book-keepingnecessaryfor the disk
model presented by the Volume
Manager.
Table 2. Command Comparison
LVM Description/Action VxVM Description/Action