Rules for ordering licensed functions

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A Base Function license is required for every base frame. All other licensed functions are optional and must have a capacity that is equal to or less than the Base Function license.

For all licensed functions, you can combine feature codes to order the exact capacity that you need. For example, if you require 160 TB of Base Function license capacity, order 10 of feature code 8151 (10 TB each up to 100 TB capacity) and 4 of feature code 8152 (15 TB each, for an extra 60 TB).

When you calculate provisioned capacity for the Copy Services license, use the size of each volume involved in a copy services relationship and multiply by the size of each extent.

When you calculate raw capacity, consider the capacity across the entire storage system, including the base frame and any expansion frames. To calculate the raw capacity, use the following table to determine the total size of each regular drive feature in your storage system, and then add all the values.

Table 1. Total raw capacity for drive-set features
Drive sizes Total raw capacity Drives per feature
800 GB flash drives 12.8 TB 16
1.6 TB flash drives 25.6 TB 16
1.92 flash drives 30.7 TB 16
3.2 TB flash drives 51.2 TB 16
3.84 TB flash dives 61.4 TB 16
7.68 TB flash drives 122.9 TB 16
15.36 TB flash drives 245.8 TB 16

Rules for removing a licensed function

The initial enablement of any optional DS8000® licensed function is a concurrent activity (assuming that the appropriate level of microcode is installed on the machine for the specific function). The removal of a DS8000 licensed function is a nondisruptive activity but takes effect at the next machine IML.

If you have a licensed function and no longer want to use it, you can deactivate the license in one of the following ways:
  • Order an inactive or disabled license and replace the active license activation key with the new inactive license activation key at the IBM® Data storage feature activation (DSFA) website.
  • Go to the DSFA website and change the assigned value from the current number of terabytes (TB) to 0 TB. This value, in effect, makes the feature inactive. If this change is made, you can go back to DSFA and reactivate the feature, up to the previously purchased level, without having to repurchase the feature.
Regardless of which method is used, the deactivation of a licensed function is a nondisruptive activity, but takes effect at the next machine IML.
Note: Although you do not need to specify how the licenses are to be applied when you order them, you must allocate the licenses to the storage image when you obtain your license keys on the IBM Data storage feature activation (DSFA) website.