VERITAS Volume Manager 3.5 Administrator's Guide (September 2004)

Understanding VERITAS Volume Manager
Online Relayout
Chapter 146
You can determine the transformation direction by using the vxrelayout
status volume command.
These transformations are protected against I/O failures if there is
sufficient redundancy and space to move the data.
Transformations and Volume Length
Some layout transformations can cause the volume length to increase or
decrease. If either of these conditions occurs, online relayout uses the
vxresize(1M) command to shrink or grow a file system as described in
“Resizing a Volume” on page 274.