Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

Chapter

Creating and administering

subdisks

This chapter describes how to create and maintain subdisks. Subdisks are the low-level

building blocks in a Veritas Volume Manager (VxVM) configuration that are required to

create plexes and volumes.

Note: Most VxVM commands require superuser or equivalent privileges.

Creating subdisks

Note: Subdisks are created automatically if you use the vxassist command or the

Veritas Enterprise Administrator (VEA) to create volumes. For more information, see

“Creating a volume” on page 230.

Use the

vxmake command to create VxVM objects, such as subdisks:

# vxmake [-g diskgroup] sd subdisk diskname,offset,length

where: subdisk is the name of the subdisk, diskname is the disk name, offset is the

starting point (offset) of the subdisk within the disk, and length is the length of the

subdisk.

For example, to create a subdisk named mydg02-01 in the disk group, mydg, that starts

at the beginning of disk mydg02 and has a length of 8000 sectors, use the following

command:

# vxmake -g mydg sd mydg02-01 mydg02,0,8000