Veritas Storage Foundation Intelligent Storage Provisioning 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

# vxassist -g mydg -P mypool make strvol 1g \

capability=’Striping(ncols=4)’ \

rules=’exclude allof("Room"="Room1","DeviceName"="Enc1_1",\

"DeviceName"="Enc1_2")’

Creating volumes by specifying templates

Volumes can be created by specifying templates instead of capabilities.

The following example demonstrates how to create a mirrored volume using a

template:

# vxassist -g mydg -P mypool make mirvol 1g \

volume_template=DataMirroring

If you specify templates when creating a volume, you must ensure that these

templates are self-sufficient, and that they do not depend on templates that are

not specified on the command line. This applies to all cases where templates are

named by themselves, or in combination with a mixture of capabilities and rules.

A template can refer to other templates in the following ways:

■ It can be an extension of another template.

■ It can apply another template.

■ It can require or inherit a capability that is provided by another template.

If one or more of these conditions apply, ISP may not be able to use the given

templates and volume creation may fail.

To view the details of a template, use the following command:

# vxtemplate [-g diskgroup] print template_name

Examine the definitions of the extends, inherits, requires and apply fields

to see the other templates on which the specified template depends.

See “Volume templates” on page 148.

For example, the following command fails because of a template dependency:

# vxassist -g mydg -P mypool make myvol 1g \

volume_template=PrefabricatedRaid5

VxVM vxassist ERROR V-61-49872-28 Template PrefabricatedRaid5 is

not valid for the operation. Either the template itself is

invalid or one or more of the related templates/capabilities are

not in the scope.

Creating application volumes

Creating volumes