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With the technical system editor, you can delete complete technical system descriptions in the Landscape Management Database (LMDB).

Usually, a technical system is known in at least one System Landscape Directory (SLD). Therefore, deleting technical system information only in the LMDB only makes sense for descriptions created manually, or migrated from SMSY into the LMDB. A system description provided by an SLD must be deleted in the SLD; the deletion is propagated to LMDB like all other changes.

Automatically created technical system information must be deleted consistently from the system descriptions in SLD andLMDB. The deletion sequence is important, because automatic synchronization could restore deleted data. The deleted technical system is automatically registered again if it is in a landscape and if it has a system data supplier that is configured at a connected SLD, so the data supplier must be deactivated first.

Prerequisites

See the prerequisites for Complete Technical System Information Manually.

Carefully consider the use of the technical system description in product systems, logical components, etc. Deleting a description deactivates all configurations that have been done for this system.

Procedure

To delete a technical system description from the complete system landscape, proceed as follows:

  1. If the system is automatically registered in an SLD, deactivate the data supplier of the system (for example with transaction RZ70).

    Then delete the system information in the SLD.

    For more information, see How-to Manage House-Cleaning in the System Landscape Directory - Duplicate System Entries in the SAP Community Network at http://scn.sap.com/docs/DOC-8516.

  2. Delete the system information in the LMDB. This is only necessary if you changed the system manually in the LMDB (because it is then protected against propagation of the deletion in the SLD).

    Start SAP Solution Manager: Work Centers (transaction SOLMAN_WORKCENTER) and choose   Solution Manager Administration   Landscape   Technical Systems  .

    Select a system, choose   System Operations   Maintain System  . In the technical system Editor, choose Delete Technical System.

  3. The technical system description that you deleted in the LMDB is automatically deleted in transaction SMSY as well.

    Dependent product systems are not automatically deleted, you have to do this manually in the LMDB. For technical systems of type ABAP, this is mandatory. For all other system types it is only necessary if the technical system is part of a product system.

Note Note

If you delete a technical system description that was provided by SLD synchronization, it is only deleted until the next incremental synchronization. The result can be a fragmentary system description, because only that information is synchronized that is new, from the SLD’s point of view. To repair this, read Restore Deleted Technical System Information under Troubleshooting for the LMDB.

End of the note.