Count key data (CKD)
The function can be used only with data from FICON attached servers. The Copy Services, Copy
Services Manager on the Hardware Management Console, and z-synergy Services licensed functions
are available within this scope.
Both FB and CKD (ALL)
The function can be used with data from all attached servers. The Base Function, Copy Services, and
Copy Services Manager on the Hardware Management Console licensed functions are available within
this scope.
Some licensed functions have multiple license scope options, while other functions have only a single
license scope.
You do not specify the license scope when you order function authorization feature numbers. Feature
numbers establish only the extent of the authorization (in terms of usable capacity), regardless of the
storage type. However, if a licensed function has multiple license scope options, you must select a license
scope when you initially retrieve the feature activation codes for your storage system. This activity is
performed by using the IBM Data storage feature activation (DSFA) website (www.ibm.com/storage/
dsfa) .
Note: Retrieving feature activation codes is part of managing and activating your licenses. Before you can
logically congure your storage system, you must rst manage and activate your licenses.
When you use the DSFA website to change the license scope after a licensed function is activated, a new
feature activation code is generated. When you install the new feature activation code into the storage
system, the function is activated and enforced by using the newly selected license scope. The increase in
the license scope (changing FB or CKD to ALL) is a nondisruptive activity. A reduction of the license scope
(changing ALL to FB or CKD) is a disruptive activity, which takes effect at the next restart.
Ordering licensed functions
After you decide which licensed functions to use with your storage system, you are ready to order the
functions.
About this task
Licensed functions are purchased as function authorization features.
To order licensed functions, use the following general steps:
Procedure
1. Required. Order the Base Function license to support the total usable capacity of your storage system.
2. Optional. Order the z-synergy Services license to support the usable capacity of all arrays that are
formatted as CKD.
3. Optional. Order the Copy Services license to support the total usable capacity of all volumes that are
involved in one or more copy services functions.
Note: The Copy Services license is based on the usable capacity of volumes and not on physical
capacity. If overprovisioning is used on the DS8900F with a signicant amount of Copy Services
functionality, then the Copy Services license needs only to be equal to the total array usable capacity
(even if the logical provisioned capacity of volumes in Copy Services is greater). For example, if the
total provisioned usable capacity of a DS8900F is 100 TB but there are 200 TB of thin provisioning
volumes in Metro Mirror, then only a 100 TB of Copy Services license is needed.
4. Optional. Order the Copy Services Manager on the Hardware Management Console license that
support the total usable capacity of all volumes that are involved in one or more copy services
functions.
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IBM DS8900F: DS8900F Introduction and Planning Guide
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