Veritas Storage Foundation 5.1 SP1 Advanced Features Administrator"s Guide (5900-1503, April 2011)

Table 27-1
A conceptual comparison of LVM and VxVM (continued)
DescriptionVxVM termLVM term
An LVM physical volume and a VxVM
disk are conceptually the same. A
physical disk is the basic storage
device (media) where the data is
ultimately stored. You can access the
data on a physical disk by using a
device name (devname) to locate the
disk.
In LVM, a disk that is initialized by
LVM becomes known as a physical
volume.
A VxVM disk is one that is placed
under the Volume Manager control
and is added to a disk group.
In addition, both LVM and VxVM have
the following characteristics:
■ Volumes can be mapped to
multiple VxVM disks or LVM
physical volumes.
■ VxVM disks must reside in only
one disk group, and LVM physical
volumes must reside in one
volume group.
VxVM diskPhysical volume
395Offline data migration
About VxVM and LVM