This topic describes migration considerations.

Your plan for migrating to the new level of ICSF should include information from a variety of sources. These sources of information describe topics such as coexistence, service, hardware and software requirements, installation and migration procedures, and interface changes.

An IPL is required when installing a new release of ICSF (it is possible for ICSF control blocks like the DACC and CCVT to persist in storage across an ICSF restart).

Consult these documents for information on migration and installation:

• z/OS Migration

  This publication describes the migration tasks for z/OS at a system and element level.

  This publication, which is supplied with your product order, provides information about installing your z/OS system. In addition to specific information about ICSF, this publication contains information about all of the z/OS elements.

• z/OS Planning for Installation

  This publication describes the installation requirements for z/OS at a system and element level. It includes hardware, software, and service requirements for both the driving and target systems. It also describes any coexistence considerations and actions.

• z/OS Program Directory

  This publication, which is provided with your z/OS product order, leads you through the specific installation steps for ICSF and the other z/OS elements.

• ServerPac Installing Your Order

  This is the order-customized, installation publication for using the ServerPac Installation method. Be sure to review "Appendix A. Product Information", which describes data sets supplied, jobs or procedures that have been completed for you, and product status. IBM may have run jobs or made updates to PARMLIB or other system control data sets. These updates could affect your migration.