IBM V7000 Introduction And Implementation Manual page 68

For example, adding a DS5020 consisting of three enclosures to an IBM Flex System V7000
Storage Node consisting of one control enclosure and one expansion enclosure, then you will
need one license with quantity of three enclosure authorization feature codes (one for each of
the DS5020 enclosures) of the IBM Flex System V7000 External Virtualization software.
Remote Copy (Advanced Copy Services: Metro Mirror / Global Mirror)
To authorize the use of Remote Copy capabilities of IBM Flex System V7000 Storage Node
where the primary and secondary systems have the same number of enclosures at each site,
you must purchase a license for IBM Flex System V7000 Remote Mirroring Software with the
quantity of licenses that matches the number of licensed enclosures managed by IBM Flex
System V7000 Storage Node, including each internal enclosure licensed with the IBM Flex
System V7000 Base Software, each attached Storwize V7000 expansion enclosure with the
Storwize V7000 Base Software, and each external enclosure licensed with the IBM Flex
System V7000 External Virtualization Software.
For example, if your primary system has a DS5020 consisting of three enclosures managed
by IBM Flex System V7000 Storage Node consisting of one control enclosure and one
expansion enclosure, and you have the same total count of enclosures at the secondary
system. Then, in order to authorize remote mirroring for the primary system, you will need to
license the IBM Flex System V7000 Remote Mirroring Software, with a quantity of five
enclosures. Assuming the matching secondary system is also a IBM Flex System V7000
Storage Node, you will need an additional five enclosure licenses for the secondary system,
for a total of 10 enclosure licenses.
For primary and secondary systems with differing numbers of enclosures using Remote
Mirroring, the number of licenses needed for each system is the number of enclosures on the
smaller of the two systems (see scenarios 1 and 2 next).
When multiple production systems replicate to a single disaster recovery system, the number
of licenses at the disaster recover system must equal the sum of the licenses at the
production systems (see scenario 3 next).
The following scenarios show examples of how to license Remote Mirroring Software under
these licensing rules.
Scenario 1: The primary system is a three-enclosure IBM Flex System V7000 Storage Node
with nothing externally virtualized, therefore it has three base enclosure licenses (IBM
Storwize Family Software for Flex System V7000). The secondary system is a two-enclosure
IBM Flex System V7000 Storage Node with nothing externally virtualized, therefore it has two
base enclosure (IBM Storwize Family Software for Flex System V7000) licenses. The Flex
System V7000 Remote Mirroring licensing would be as follows: two licenses for the primary
system plus two licenses for the secondary system, for a total of four licenses required.
Scenario 2: The primary system is a one-enclosure IBM Flex System V7000 Storage Node
managing a DS5020 consisting of three enclosures, therefore it has one base system license
(IBM Storwize Family Software for Flex System V7000) license plus three licenses for IBM
Flex System V7000 External Virtualization Software licenses. The secondary system is a
three-enclosure Flex System V7000 with nothing externally virtualized, therefore it has three
base system licenses (IBM Storwize Family Software for Flex System V7000) licenses. The
Flex System V7000 Remote Mirroring licensing would be as follows: three licenses for the
primary system plus three licenses for the secondary system, for a total of six licenses
required.
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IBM Flex System V7000 Storage Node Introduction and Implementation Guide