Other Requirements

Before beginning the installation, verify that the following requirements are met:

Verify that one type 3 or type 4 SVC is available.
The CA 1 SVC may be defined in the SYS1.PARMLIB IEASVCxx member. The SVC number is used by the CAIRIM procedure as an input parameter for L0C6INIT. The SVC number must be a three-digit number between 200 and 255, inclusive.
Verify that all modules from previous versions are removed from both SYS1.LPALIB and SYS1.LINKLIB and their concatenations (or use alternates from a previous version that do not contain modifications).
If you are using CA ASM2 or CA 11, reinstall the product interface.
Remove CA 1 modules in other libraries, such as CA Roscoe and JES3.
CA 1 12.6.00 is a new release with a new FMID. You cannot upgrade to 12.6.00 from previous releases by applying PTFs. Install the new release into an SMP/E zone that does not contain an earlier release of CA 1.