Upgrading z/OS

Before you upgrade the z/OS® system on which IMS is running, consider any requirements for the z/OS interface and VTAM® interfaces.

Ensure that you perform the following when upgrading the z/OS system on which IMS is running:

Procedure

  1. Review the z/OS considerations. See z/OS interface considerations for more information.
  2. Review the VTAM considerations. See VTAM interface considerations for more information.
Note: The IVP D series of samples contains examples of all of the z/OS and VTAM interfaces, except for the Channel-to-Channel (CTC) Channel-End Appendage. See IMS Version 15.4 Installation for more information.