VERITAS Volume Manager 3.5 Administrator's Guide (September 2002)

Chapter 4, Creating and Administering Disk Groups

Reorganizing the Contents of Disk Groups

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Reorganizing the Contents of Disk Groups

Note You may need an additional license to use this feature.

There are several circumstances under which you might want to reorganize the contents

of your existing disk groups:

◆ To group volumes or disks differently as the needs of your organization change. For

example, you might want to split disk groups to match the boundaries of separate

departments, or to join disk groups when departments are merged.

◆ To reduce the size of adisk group’s conﬁguration databasein theevent thatits private

region is nearly full. This is a much simpler solution than the alternative of trying to

grow the private region.

◆ To perform online maintenance and upgrading of fault-tolerant systems that can be

split into separate hosts for this purpose, and then rejoined.

◆ To implement off-host processing solutions for the purposes of backup or decision

support in a cluster environment. This is discussed further in “Conﬁguring Off-Host

Processing” on page 271.

You canuseeither the VERITAS EnterpriseAdministrator(VEA) orthevxdg command to

reorganize your disk groups. For more information about using the graphical user

interface, see the VERITAS Volume Manager (UNIX) User’s Guide — VEA. This section

describes how to use the vxdg command.