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Chapter
7
Creating volumes
This chapter describes how to create volumes in Veritas Volume Manager
(VxVM). Volumes are logical devices that appear as physical disk partition
devices to data management systems. Volumes enhance recovery from
hardware failure, data availability, performance, and storage configuration.
Note: You can also use the Veritas Intelligent Storage Provisioning (ISP) feature
to create and administer application volumes. These volumes are very similar to
the traditional VxVM volumes that are described in this chapter. However, there
are significant differences between the functionality of the two types of volume
that prevents them from being used interchangeably. Refer to the Veritas
Storage Foundation Intelligent Storage Provisioning Administrator’s Guide for
more information about creating and administering ISP application volumes.
Volumes are created to take advantage of the VxVM concept of virtual disks. A
file system can be placed on the volume to organize the disk space with files and
directories. In addition, you can configure applications such as databases to
organize data on volumes.
Note: Disks and disk groups must be initialized and defined to VxVM before
volumes can be created from them. See “Administering disks” on page 77 and
“Creating and administering disk groups” on page 165 for more information.