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

■ If you specify rules along with templates, ISP creates volumes that comply to
the rules in the templates, and also to those rules that are specified as
arguments to vxassist.
■ If you specify capabilities along with templates, ISP selects the appropriate
templates from those specified that conform to the desired capabilities.
■ If you specify rules, capabilities and templates, ISP selects the appropriate
templates from those specified that conform to the desired capabilities, and
that adhere to the specified rules in addition to the rules in those templates.
See “About capabilities, templates and rules” on page 145.
You can create volumes by specifying user templates that you have set up with
the required redundancy, fault tolerance, or performance capabilities for the
applications that you run at your site.
See “About creating user templates” on page 139.
In the release of VxVM 5.0, it is possible to use the vxassist command to create
ISP volumes. If you are experienced in using specification attributes with vxassist
to create volumes, or you have a number of legacy scripts that call vxassist, you
may find it preferable to create ISP volumes in this way.
See “Creating volumes by using vxassist specification attributes” on page 65.
Creating volumes by using vxassist specification attributes
In the release of VxVM 5.0, it is possible to use the vxassist command to create
ISP volumes (for which intent is preserved) in addition to non-ISP volumes (for
which intent has no meaning). The vxassist command now accepts the same
specification of templates, capabilities and rules as the vxvoladm command, and
a set of vxassist storage specification attributes are automatically translated
into equivalent ISP rules.
See “About vxassist and ISP rules” on page 215.
If the -o intent option is specified, vxassist creates an ISP volume, and it also
sets up a storage pool in the disk group if one does not already exist. If a storage
pool already exists in a disk group, the vxassist command attempts to create an
ISP volume unless you specify the -o nointent option.
The following sections are examples of using the vxassist command in this way.
Subsequent sections describe how to use capabilities, templates and rules to create
ISP volumes with requirements that are beyond the scope of traditional vxassist
specification attributes.
65Creating application volumes
Creating volumes