Operating several openUTM versions in parallel

Several openUTM versions can be loaded in parallel in the same BS2000 operating system and can be implemented simultaneously in production operation.

This function is particularly advantageous when changing over to a new openUTM version. You can then try out individual UTM applications with the follow-up openUTM version during production operation. The changeover of several UTM applications from one openUTM version to another within a computer can thus be tested and implemented in stages.

When operating several openUTM versions in parallel, please note the following:

• All openUTM versions must be entered in the BS2000 subsystem catalog. The entries must permit the parallel operation of several openUTM versions. The SSD objects supplied with openUTM include this permission.

• When loading the UTM system code with the command START-SUBSYSTEM you must specify the parameter VERSION-PARALLELISM=*COEXISTENCE-MODE.

• All parts of the application must be created with the files/libraries of the same openUTM version.

• UTM applications in various openUTM versions must not have the same name. openUTM prevents the start of the second application with the same name.