Remote Mirror And Copy Functions; Flashcopy Function (Point-In-Time Copy); Safeguarded Copy - IBM DS8882F Introduction And Planning Manual

Table 32. Copy Services license feature codes
Feature Code
8250
8251
8252
8253
8254
Copy Services license rules
The following ordering rules apply when you order the Copy Services license:
v The Copy Services license should be ordered based on the total usable capacity
of all volumes involved in one or more Copy Services relationships.
v The licensed authorization must be equal to or less that the total usable capacity
allocated to the volumes that participate in Copy Services operations.
v You must purchase features for both the source (primary) and target (secondary)
storage system.

Remote mirror and copy functions

The Copy Services license establishes the extent of IBM authorization for the use of
the remote mirror and copy functions on your storage system.
The following functions are included:
v Metro Mirror
v Global Mirror
v Global Copy
v Metro/Global Mirror
v Multiple Target PPRC

FlashCopy function (point-in-time copy)

FlashCopy creates a copy of a source volume on the target volume. This copy is
called a point-in-time copy.
When you initiate a FlashCopy operation, a FlashCopy relationship is created
between a source volume and target volume. A FlashCopy relationship is a
"mapping" of the FlashCopy source volume and a FlashCopy target volume. This
mapping allows a point-in-time copy of that source volume to be copied to the
associated target volume. The FlashCopy relationship exists between this volume
pair from the time that you initiate a FlashCopy operation until the storage unit
copies all data from the source volume to the target volume or you delete the
FlashCopy relationship, if it is a persistent FlashCopy.

Safeguarded Copy

The Safeguarded Copy feature, available with the Copy Services license, creates
backups of data that you can restore to the source volume or a different volume.
The Safeguarded Copy feature creates safeguarded backups that are not accessible
by the host system and protects these backups from corruption that can occur in
the production environment. You can define a Safeguarded Copy schedule to create
multiple backups on a regular basis, such as hourly or daily. You can also restore a
Feature code for licensed function indicator
CS - inactive
CS - 10 TB (up to 100 TB capacity)
CS - 15 TB (from 100.1 TB to 250 TB capacity)
CS - 25 TB (from 250.1 TB to 500 TB capacity)
CS - 75 TB (from 500.1 to 1250 TB capacity)
Chapter 5. Planning use of licensed functions
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