VERITAS Storage Foundation 4.1 Intelligent Storage Provisioning Administrator's Guide

Chapter 1, Understanding ISP
ISP Concepts
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The following table shows some simple examples of templates and the capabilities that they might
provide:
See “Volume Templates” on page 161 for details of the templates that are provided.
Template Sets
A template set consists of related capabilities and templates that have been collected together for
convenience. Associating a template set with a storage pool is equivalent to associating each of its
member templates separately with the storage pool. See “Template Sets” on page 156 for details of
the template sets that are provided.
User Template
A user template (or user-defined template) defines an arbitrary collection of capabilities, templates
and rules to which you want volumes of a certain type to conform. For example, you might want all
volumes that you create to store database tables to share the same reliability and performance
capabilities, and also that they only be allocated from a restricted set of storage.
It is useful to create user templates if you regularly create volumes with similar capabilities.
Template Provides Capabilities Adjustable Parameters for the Capability
DataMirroring DataMirroring nmirs — number of mirrors (plexes)
Raid5Volume Raid5Capability,
Raid5LogMirroring
ncols — minimum number of columns
nlogs — number of log copies
nmaxcols — maximum number of columns
Striping Striping ncols — minimum number of columns
nmaxcols — maximum number of columns