VERITAS Volume Manager 4.1 Administrator's Guide

Creating Volumes
Creating a Volume on Any Disk
Chapter 7 235
Creating a Volume on Any Disk
By default, the vxassist make command creates a concatenated volume
that uses one or more sections of disk space. On a fragmented disk, this
allows you to put together a volume larger than any individual section of
free disk space available.
NOTE To change the default layout, edit the definition of the layout attribute
defined in the /etc/default/vxassist file.
If there is not enough space on a single disk, vxassist creates a spanned
volume. A spanned volume is a concatenated volume with sections of
disk space spread across more than one disk. A spanned volume can be
larger than any disk on a system, since it takes space from more than
one disk.
To create a concatenated, default volume, use the following form of the
vxassist command:
# vxassist [-b] [-g diskgroup] make volume length
NOTE Specify the -b option if you want to make the volume immediately
available for use. See “Initializing and Starting a Volume” on page 258
for details.
For example, to create the concatenated volume voldefault with a length
of 10 gigabytes in the rootdg disk group:
# vxassist -b make voldefault 10g