Scheduling Data Archiving Processes Using Process Chains 

Prerequisites

You have created a data archiving process.

Procedure

...

       1.      You are in the Administration functional area of the Data Warehousing Workbench. Choose  Process Chains. The Process Chain Maintenance Planning View screen appears.

       2.      In the left-hand screen area of the required display component, navigate to the process chain in which you want to insert your data archiving process. Double-click to select it. The system displays the process chain plan view in the right-hand screen area.

If no suitable process chain is available, create a new process chain. For more information, see Creating Process Chains.

       3.      In the left-hand screen area, choose  Process Types. The system displays the available process categories.

       4.      In the Data Target Administration process category, choose the application process type Archive Data from an InfoProvider.

       5.      Insert the application process type into the process chain using drag and drop. The dialog box for inserting a process variant appears.

       6.      Create a process variant and confirm your entries. An additional dialog box appears.

       7.      Select your data archiving process.

       8.      Make the required settings:

○       Under Process Flow Control, you can either continue open archiving processes or specify whether the archiving process is to run until a specific status only. For more information, see Status of Archiving Requests.

○       Under Relative Time Restrictions, you can specify the area to be archived. You can schedule periodic archiving runs without having to adapt a variant with each run using a relative time condition in the form of a minimum age.

The relative time restriction is changed into a selection condition for the time slice characteristic, depending on the start time of the write process.  An intersection is created using the absolute time conditions for the time slice characteristic and the selection conditions for the other characteristics. This intersection is then used to derive the already archived area and the selection conditions from other archiving requests that are still open. The resulting selection condition is stored with the newly created archiving request and is used for both the selection of data in the write phase and the delete phase.

○       Under Further Restrictions, you can select values of your partitioning characteristics.

       9.      Confirm your entries. At runtime for the process step, an archiving request is generated from this variant, which controls the entire archiving run.

   10.      Save and activate the process chain. The process chain starts according to the selections in the start process.

The InfoProvider to be archived is not locked for data loading during the entire process. The lock is only necessary for a short period before the data is copied. After this, only the previously archived data areas and the area that is being archived are locked.