IBM DS8800, Introduction And Planning Manual, Page: 154 / 256

Remote mirror and copy functions (242x Model RMC and 239x Model
LFA)
The remote mirror and copy licensed function model and features establish the
extent of IBM authorization for the use of the remote mirror and copy licensed
functions on your storage unit.
The following functions are remote mirror and copy licensed functions:
v
Metro Mirror (formerly Synchronous PPRC)
v Global Mirror (formerly Asynchronous PPRC)
v Global Copy (formerly PPRC Extended Distance)
v
Metro/Global Mirror
Feature codes for remote mirror and copy
When you order remote mirror and copy functions, you specify the feature code
that represents the physical capacity to authorize for the function.
Note: If you are activating features for any of the licensed functions, such as Copy
Services, all the features must have the same capacity, including the
operating environment license feature.
The remote mirror and copy license feature codes enable the use of the following
remote mirror and copy (RMC) licensed functions:
v
IBM System Storage Metro Mirror (MM)
v IBM System Storage Global Mirror (GM)
v
IBM System Storage Metro Global Mirror (MGM)
You can combine feature codes to order the exact capacity that you need. For
example, if you determine that you need a function authorization for 35 TB of
remote mirror and copy capacity, you would order one 7504 feature and one 7503
feature.
Note: If you have an active remote mirror and copy feature and replace it with an
inactive feature, see “Managing a licensed feature” on page 187 for
information about using the feature again.
Table 44 on page 133 provides the feature codes for the remote mirror and copy
functions.
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Introduction and Planning Guide