RTCS registry maintenance

The Registry Maintenance Utility (RMU) can be used to import, backup, restore, and manipulate data in an RTCS registry, including the RTCS system registry.

Product installation and configuration data are imported into a registry by using an XML document. The RMU program (OSZRGMNT) processes XML documents (such as members of the SMP/E TOSZRXML target library or other product target libraries) and updates the registry data structures.

Data structures that are to be stored in the RTCS subsystem SYSTEM registry can be defined in an RMU IMPORT file XML document. Field values in these structures can be parameterized at RMU execution time by using symbol substitution. A set of product configuration data can be described and shipped with the product and then used to configure each individual system or product instance. The values of these substituted symbols are specified by SET control statements in the RMU control statement (SYSIN) input stream.

The RMU verifies the integrity of the complex data structures against their unique type definition before updating the registry. In addition, substituted data values are validated based on the specific data type that is required within a data structure. This action protects the registry data from corruption at the syntax level.

Data structures in an RTCS registry can be deleted by using a combination of SELECT and DELETE control statements in the RMU SYSIN input stream.

A backup of an RTCS registry’s contents can be taken, and that backup can subsequently be restored to the same or another RTCS registry. The RTCS registry backup and restore capability is useful not only to facilitate recovery from DASD failure, but to enable an existing RTCS registry to be enlarged.

Fore more information, see the following topics:

• Registry basics
• Executing the RMU
• Required DD statements
• Control statements
• Return codes and messages