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# Understanding storage templates

Storage templates are a reusable set of storage requirements that simplify storage management for virtual data centers by eliminating many of the repetitive tasks that are required to create and make storage available to hosts or applications.

With this feature, Administrators and Storage Administrators can create templates for their common provisioning tasks and then invoke them later when performing such things as:

- Creating or provisioning storage groups.

The templates that are created on a particular Unisphere server can be used across all the arrays on that particular server.

A provisioning template contains configuration information and a performance reservation.

The performance reservation that is saved with a template is generated from a 2-week snapshot of the performance data of the source storage group. The total IOPS and MBPS, I/O mixture, and skew profile from this snapshot are used for array impact tests when the template is used to provision a new storage group.