Installing the SMDA instance

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Follow the provided information to perform the installation of the SMDA instance for a high availability SAP environment.

The SMDA instance can be installed on several servers:

  1. On non-z/OS® application server platforms and for newer SAP Netweaver releases, it can be automatically installed together with the application server instance or manually afterward as stand-alone engine. For detailed information, see the SAP Installation Guide for your application server platform.
  2. On z/OS UNIX, install one SMDA instance for each z/OS LPAR, which is involved in your high availability environment. For detailed information, see the Installation and Setup Guide - Diagnostics Agent: z/OS. Make sure that you have the latest version of this document, which can be downloaded from the SAP Support Portal.

If you run the SMDA on z/OS in the context of a high availability system landscape you have to take the following into account:

  1. Terminology from SAP for <hostname>, which is also described in this Wiki on the SAP Community:

    Diagnostics Agent and HA Support

  2. You must use the Agents on-the-fly feature. The concept of this feature is explained in the Wiki that is mentioned in step 1.
  3. In the context of the Agents on-the-fly feature, it is not allowed to use the same SID with multiple instances (like 98, 97). You must select different SIDs like DA1, DA2, or DA3 on the different hosts and the instance number can be the same or a different one.