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The Express Upgrade supports an upgrade to the new IOA version with a minimum of resources required for checking the readiness of the new IOA environment. An automatic process scans both the old and the new IOA environments, providing a detailed report of the differences between the two environments. This process ensures that the new IOA is identical to the old one.
Since the Express Upgrade process does NOT require copying all the database and operations libraries during the upgrade process downtime, it reduces the downtime to seconds.
WARNING: Since the New Environment will be connected to the repository data sets and the operational libraries of the Old Production environment during the Express Upgrade process, it is strongly recommended that you back up the Production Environment data sets and the Site Libraries before starting the upgrade process.
The Express Upgrade process is recommended when you want to complete an upgrade in the quickest and simplest manner. The Express Upgrade is performed using the ICE that is installed in the new IOA environment. However, it is important to note that for the Express Upgrade process to work, ICE must also exist in the old IOA environment as well. For detailed information about ICE, see Part 1, "Installation and Customization Engine (ICE)" in INCONTROL for z/OS Installation Guide: Installing.
When working in compatibility mode (see Basic concepts), if MODEnnn=800, the Control-M Server must be defined as version 800; if MODEnnn=700, Control-M Server must be defined as version 700. When switching from MODEnnn=800 or from MODEnnn=700 to MODEnnn=900, you must migrate the Control-M/Server definitions in the Control‑M/Enterprise Manager database from the earlier version to the current release by running the migrate_dc utility in the Control-M/Enterprise Manager environment. For more information about the migrate_dc utility, see the Control-M Migration Guide. See also Step 55. Final adjustments.
To invoke the Express Upgrade facility, select the Express Upgrade option on the ICE Main screen.
The IOA Express Upgrade panel is displayed, enabling you to select the following steps:
Compare two environments
This step compares the original ("old") IOA environment, which is being upgraded, with the new IOA environment and creates a report that indicates the differences between these two environments. These differences result from customizations performed on these environments. Analyze this report to ensure that all the customizations implemented in the original environment are also implemented in the New Environment, before you confirm it and continue to the next upgrade step.
Adapt new environment
You must deactivate all address spaces from the new IOA environment before performing this step.
This step adapts the new IOA environment by
Switch to new environment
In this step all new IOA environment procedures become ready for processing. You must deactivate all address spaces from the original IOA environment and activate all address spaces from the new IOA environment upon a successful termination of this step. All INCONTROL products in the new IOA environment then work in Compatibility Mode.
Complete the upgrade
In this step all products in the new IOA environment are automatically switched to Incompatibility Mode. After completion of this step, the fallback to the original IOA environment is no longer possible, and all Express Upgrade steps, including the FALLBACK step are locked.
FALLBACK
This optional step recovers all procedures from the original IOA environment. Address spaces from the original IOA environment can again be activated after this step is completed.
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