When upgrading to a split schema on Pega 7.x with IBM DB2 for z/OS, you see an error during the data schema upgrade when the system tries to drop the PRPC_Updatescache procedure. Because triggers on rules tables use PRPC_Updatescache, you must use the ZOSDisableTriggerScripts to disable these triggers before you update the data schema.
Follow the instructions in the Pega 7 Platform Upgrade Guide to upgrade the rules schema, but stop immediately before you upgrade the data schema with the upgrade.bat or upgrade.sh script. The Pega 7 Platform Upgrade Guide is on the Support > Deployment Guides page.
Copy the contents of the <distribution>\ResourceKit\ZOSDisableTriggerScripts directory into the <distribution>\scripts\ directory.
Run fixZosTriggers.bat or fixZosTriggers.sh with the following arguments: --action preupgrade --dataschema <data schema name> --oldrulesschema <old rules schema name. If you are upgrading from a single-schema system, this is the data schema name.> --newrulesschema <new rules schema name> --automaticddl <Optional. Set to true to automatically apply the disable trigger SQL scripts.>