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SAP HANA ADMIN License Keys | SAP HANA System | SAP HANA ADMIN Tutorial



Sap Hana Admin
SAP HANA is an in memory database for performing real time data analysis, and development of applications on the top of real time data. Learn SAP HANA from SAP HANA Training. HANA administration deals with managing SAP HANA system in a single and distributed system environment. Each HANA system can contain multi node architecture with each node containing multiple processors for fast speed data analysis and real time data provisioning. You can use Smart data access to get the data from non SAP systems without importing the data to HANA, and virtual tables can be used to perform read/write data operations. SAP HANA Admin training includes the following types of license keys.
SAP HANA License management and keys are required to use HANA database. You can install or delete HANA License keys using HANA studio.
Types of license keys:
SAP HANA system supports two types of License keys:
Temporary license key: Temporary License keys are automatically installed when you install the HANA database. These keys are valid only for 90 days and you should request permanent license keys from SAP marketplace before the expiry of 90 days period after installation.
Permanent license key: Permanent License keys are valid only till the predefined expiration date. License keys specify the amount of memory licensed to target HANA installation. They can be installed from SAP Marketplace under Keys and Requests tab. When a permanent License key expires, a temporary license key is issued, which is valid for only 28 days. During this period, you have to install a permanent License key again.
There are two types of permanent License keys for HANA system:
Unenforced: If unenforced license key is installed and consumption of HANA system exceeds the license amount of memory, the operation of SAP HANA is not affected in this case.
Enforced: If Enforced license key is installed and consumption of HANA system exceeds the license amount of memory, HANA system gets locked. If this situation occurs, HANA system has to be restarted or a new license key should be requested and installed.
There are different License scenarios that can be used in HANA system depending on the landscape of the system (Standalone, HANA Cloud, SAP BW on HANA, etc.) and not all of these models are based on the memory of HANA system installation.
SAP HANA System Lockdown
There are various scenarios when your SAP HANA system locks down. This happens when a License key expires or license keys are deleted.
When a system is locked, it is not possible to run any transactions by connecting to the database. To renew license keys/unlock the system, only HANA user with License Admin system privilege can connect to HANA database.
Following are the scenarios which can cause the lockdown of SAP HANA system:
·         When hardware license key changes and Temporary license key is used in SAP HANA system.
·         Temporary License key expires in HANA system.
·         All license keys installed in HANA database are deleted.
·         SAP HANA system permanent license key expires and has not been renewed in the grace time period of 28 days.
·         You are using Enforced License key and your memory consumption exceeds the licensed amount and tolerance limit assigned.
How to check and install license keys of HANA
The role required to install/delete an existing License Key: LICENSE ADMIN.
To check and install a new License key, navigate and right-click HANA system → Properties → License.

It tells about License type, Start Date and Expiration Date, Memory Allocation and the information (Hardware Key, System Id) that is required to request a new license through SAP Marketplace.
Now to renew/install a new License key, navigate to Install License key → Browse → Enter Path, is used to install a new License key. The Delete option is used to delete any old expiration key.
All Licenses tab under License tells about the Product name, description, Hardware key, First installation time, etc.
To delete the license key, you can use SAP HANA Studio or it can also be performed using SQL console. Deleting a license key is required in various scenarios such as you have installed permanent license keys with an incorrect installation number or incorrect system number on the database. You can also execute the following SQL command (Learn to write and execute SQL queries from SQL Server training) to delete all license keys in HANA database that results in a system lockdown.
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