You have attempted to create or change a Logical Drive-to-LUN mapping, and the Storage Partitioning option is not enabled, or the storage subsystem has reached its maximum number of allowable storage partitions.
Storage Partitioning is a Premium Feature that must be specifically enabled through the user interface.
How Do I Recover From This Error?
If the Storage Partitioning option is not enabled, use the Storage Subsystem >> Premium Feature >> Enable pull-down menu option to enable it. If you have not previously obtained a feature key file for Storage Partitioning, contact your storage supplier. See Obtaining a Feature Key File for more information.
If the storage subsystem has reached its maximum number of allowable partitions, look at your existing partitions and see whether it is possible to: