Many PAKs contain an alphabetic
letter in the Availability or Activity fields. This letter refers
to a column in the License Unit Requirement Table (LURT), which
you can access online at the following URL:
http://licensing.hp.com/swl/view.slm?page=index
The second column (Operating System Units) in the LURT is
also known as Column A. This column lists the number of license
units required for each processor listed in the System Model column.
The last column (Layered Product Units) in the LURT is also referred
to as Column H. It indicates the number of OpenVMS Alpha layered
products license units you need to run the system integrated products
(SIPs) included with the operating system. For example, if your
PAK specifies Availability = A, you would require
50 license units to load the license on a DEC 3000 Alpha Model 500
series computer, or 500 license units to load the license on a DEC
7000 Alpha Model 610 computer.
Note that some PAKs specify MOD_UNITS in the options field.
The MOD_UNITS option allows the system manager to use the DCL command
LICENSE MODIFY/UNITS to temporarily increase the size of the PAK. This
permits a product to be used, in certain emergency situations, on
a processor larger than the processor size specified in the license.
Check your license terms and conditions before modifying license
units. Reset the PAK size to its original size after the emergency
situation is resolved.
HP OpenVMS Alpha Version 7.3-2 Upgrade and Installation... 
License Management Supplement
