IMS abend formatting module (DFSAFMD0) migration considerations

Before IMS Version 11, the IMS abend formatting module DFSAFMD0 had to be installed as a z/OS® exit in the IEAVADFM dump facility installation exit routine name list when you installed IMS. IMS Version 11 and all later versions dynamically install the IMS abend formatting module, which is renamed to DFSAFMX0. No user setup is required, and you no longer need to install module DFSAFMD0 on the host z/OS system.

Although module DFSAFMD0 is not required for IMS Version 11 or later, this module is still included to support users who include DFSAFMD0 in LPA directly from the IMS library.

If DFSAFMD0 is installed from a prior version of IMS, you can remove it from the host z/OS system if no IMS Version 10 or earlier code runs on the z/OS system. For instructions on uninstalling the DFSAFMD0 module, see Uninstalling the abend formatting module (DFSAFMD0).