VERITAS Volume Manager 3.1 Administrator's Guide

Volume Tasks
Creating a Volume
Chapter 6240
disk05
Creating a RAID-5 Volume
NOTE You may need an additional license to use this feature.
A RAID-5 volume contains a RAID-5 plex that consists of two or more
subdisks located on two or more physical disks. Only one RAID-5 plex
can exist per volume. A RAID-5 volume can also contain one or more
RAID-5 log plexes, which are used to log information about data and
parity being written to the volume. For more information on RAID-5
volumes, see “RAID-5”.
To create a RAID-5 volume, use the following command:
# vxassist make volume_name length layout=raid5
For example, to create the RAID-5 volume volraid, use the following
command:
# vxassist make volraid 10m layout=raid5
This creates a RAID-5 volume with the default stripe unit size on the
default number of disks. It also creates a RAID-5 log by default.
Creating a Mirrored Volume
NOTE You may need an additional license to use this feature.
To create a new mirrored volume, use the following command:
# vxassist make volume_name length layout=mirror
For example, to create the mirrored volume, volmir, use the following
command:
# vxassist make volmir 5m layout=mirror