6. From the validated work IODF, create a file containing the z9-109 IOCP statements. This file is transferred to the workstation used for the CHPID Mapping Tool. 7. The configuration file created by IBM Manufacturing in step 3 is downloaded from Resource Link to the CHPID Mapping Tool workstation. 8. The CHPID Mapping Tool uses the input data from files to map logical channels to physical ones on the new z9-109 hardware. You may have to make decisions in response to situations that may arise, such as: a. Resolving situations in which the limitations on the purchased hardware cause a single point of failure (SPoF). You may need to purchase additional hardware in order to resolve some SPoF situations. b. Prioritizing certain hardware items over others After processing by the CHPID Mapping Tool, the IOCP statements contain the physical channels assignment to logical channels, based on the actual purchased hardware configuration. The CHPID Mapping Tool also creates configuration reports to be used by the IBM service representative and the installation team. 9. The file containing the updated IOCP statements created by the CHPID Mapping Tool, now containing the physical channels assignment, is transferred to the host system. 10.Using HCD again, and taking as input the validated work IODF file created in step 5 and the IOCP statements updated by the CHPID Mapping Tool, (CMT), apply the physical channel assignments done by the CMT to the configuration data in the work IODF. After the physical channel data has been migrated into the work IODF, a 2094 production IODF is created and the final IOCP statements can be generated. The IBM installation team uses the configuration data written in step 10 when the final power-on reset is done, yielding a z9-109 with the client I/O configuration that is ready to be used. If you are installing a new 2084, you may be able to use HCD to write an IOCDS to the 2094 in preparation for an upgrade. If you can write an IOCDS to the 2094, do so and let the IBM service representative know which IOCDS to use. Note: Using the HCD option Write IOCDS in preparation of an upgrade is the preferred method for writing the initial IOCDS when installing a new 2094. If the new 2094 is not connected using a LAN to the CPC where HCD is running, or you are not upgrading or cannot write an IOCDS in preparation for the upgrade, use HCD to produce an IOCP input file and download the input file to diskette. If the file is too big to fit on a diskette, compress it using a zip-compatible program. 8.1.2 Planning considerations Keep the following considerations in mind when planning your upgrade. Coupling links If you are currently using CBS/CBR or CFS/CFR CHPIDs to connect between processors, be aware that these are not supported on a z9-109. They need to be replaced with CBP or CFP. ICB-2 and ISC-3 links in compatibility mode are not supported on the 2094. Chapter 8. Install an additional z9-109 297