Unenforced License and Enforced License in SAP HANA.

License keys are required to use SAP HANA databases.
 
The SAP HANA database supports two kinds of license keys: temporary license keys and permanent license keys. While temporary license keys are automatically installed in an SAP HANA database, permanent license keys have to be requested on the SAP Service Marketplace and applied to the individual SAP HANA database.

Temporary License Key:

The temporary license keys are automatically installed with a new SAP HANA database installation. It is valid for 90 days from installation date. During this period we should request in service market place and apply permanent license key.

Permanent License Key:

You can request a permanent license key on the SAP Service Marketplace athttps://service.sap.com/support under Keys & Requests. Permanent license keys are valid until the predefined expiration date. Furthermore, they specify the amount of memory licensed to the target SAP HANA database. Before a permanent license key expires, you should request and apply a new permanent license key.

Note: Before a permanent license key expires, we should request and apply a new permanent license key. If it is expires, a temporary license key valid for 28 days is automatically installed. During this time, we can request and install a new permanent license key again.

There are two types of permanent license key available for SAP HANA

I.  Unenforced (SWPRODUCTNAME=SAP-HANA)

II. Enforced (SWPRODUCTNAME=SAP-HANA-ENF)

Unenforced License:

If an unenforced license key is installed, the operation of SAP HANA is not affected if its memory consumption exceeds the licensed amount of memory.

Enforced License:

If enforced license key is installed the system will be locked if memory consumption of HANA exceeds the license amount of memory plus some tolerance. If this happens HANA has to be restarted or a new license key should be requested, or a new license key that covers the amount of memory in use needs to be installed.

In the following situations, the system goes into lockdown mode:
. The temporary license key has expired.
. You were using a temporary license key and the hardware key has changed.
. The permanent license key has expired and you did not renew it within 28 days.
. The installed license key is an enforced license key and the current memory consumption exceeds the licensed amount plus the tolerance.
. You deleted all license keys installed in your database.
. The system ID and/or hardware key of your database have changed, for example, after system copy or renaming.
 
In lockdown mode, no queries are possible. Only a user with the system privilegeLICENSE ADMIN can connect to the database and execute license-related queries, such as, obtain previous license data, install a new license key, and delete installed license keys. Note that the database cannot be backed up if it is lockdown mode.

Leave a Reply