HP XP P9500 Storage - Manual (Page 16)

When to use expanded-LU provisioning
Expanded-LU provisioning is a best fit in the following scenarios:
•
In an open systems environment.
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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