VERITAS Volume Manager 4.1 Administrator's Guide

Chapter 4 153

Specifying a Disk Group to Commands

Many VxVM commands allow you to specify a disk group using the –g

option. For example, to create a volume in disk group mktdg, use the

following command:

# vxassist -g mktdg make mktvol 50m

The block special device for this volume is:

/dev/vx/dsk/mktdg/mktvol

The disk group does not have to be speciﬁed if the object names are

unique. Most VxVM commands use object names speciﬁed on the

command line to determine the disk group for the operation. For

example, to create a volume on disk mktdg01 without specifying the disk

group name, use the following command:

# vxassist make mktvol 50m mktdg01

Many commands work this way as long as two disk groups do not have

objects with the same names. For example, VxVM allows you to create

volumes named mktvol in both rootdg and in mktdg. If you do this, you

must add –g mktdg to any command where you want to manipulate the

volume in the mktdg disk group.

NOTE Most VxVM commands require superuser or equivalent privileges.