HP P9000 Provisioning for Open and Mainframe Systems User Guide

When to use expanded-LU provisioning
Expanded-LU provisioning is a best fit in the following scenarios:
• In an open systems environment.
• When you want to manually control and monitor your storage resources and usage scenarios.
• To combine open-systems volumes to create an open-systems volume (LU) larger than 2.8 TB.
• When thin provisioning is not an option.
For detailed information, see “Configuring expanded LU provisioning” (page 59).
Basic provisioning workflow
The following illustrates the basic provisioning workflow:
Virtual LUN software is used to configure custom-sized provisioning. For detailed information, see
(page 41).
Thin provisioning
Thin provisioning is an approach to managing storage that maximizes physical storage capacity.
Instead of reserving a fixed amount of storage, it simply assigns capacity from the available physical
pool when data is actually written to disk.
16 Introduction to provisioning