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HCL Workload Automation for Z
Welcome to the HCL Workload Automation for Z documentation, where you can find information about how to install, maintain, and use the product.
Managing the Workload
You can plan when and how your workload runs and manage it as part of a plan.
Planning and scheduling
Learn how to organize your workload while it runs, and the dependencies among its parts.
Configuring a backup controller for disaster recovery
Applying maintenance to your environment
To apply maintenance to both the primary and backup controllers, complete the following steps.

HCL Workload Automation for Z
Welcome to the HCL Workload Automation for Z documentation, where you can find information about how to install, maintain, and use the product.
- Program Directory
- Dynamic Workload Console Readmes
  For the latest information about a Dynamic Workload Console fix pack, see the appropriate Readme File.
- Planning and Installation
- Customization and Tuning
- Managing the Workload
  You can plan when and how your workload runs and manage it as part of a plan.
  - About this publication
  - Planning and scheduling
    Learn how to organize your workload while it runs, and the dependencies among its parts.
    - What is the scheduler?
    - A user scenario
    - Using the scheduler panels
    - Creating Workstations
    - Creating special resources
    - Creating calendars and periods
    - Defining and managing run cycle groups
      You can optionally define a run cycle group for your application instead of - or in addition to - a number of single run cycles.
    - Creating applications and groups
    - Defining applications in batch
    - Overview of the long-term and current plans
    - Producing and modifying the long-term plan
    - Producing the current plan
    - Multiple matching criteria for the resolution of dependencies
    - Using service and optional functions
    - Selecting Work for Automatic Submission
    - Overview of job tracking on z/OS®
    - Planning for recovery and restart
    - Configuring a backup controller for disaster recovery
      - Starting a backup controller
      - Recovering from a system failure on the local site
        You might want to replicate the configuration that you set on your local site system also on the remote site. Then, if a system failure occurs on your local site, your workload schedule can continue to run on the remote site.
      - Running the primary and backup controllers
        During normal processing, the primary controller sends all the data and plan updates to the backup controller, which in turn applies them to its databases.
      - Applying maintenance to your environment
        To apply maintenance to both the primary and backup controllers, complete the following steps.
      - Creating or extending a long-term plan or current plan on the primary controller
        When you create or extend a long-term plan, the primary controller sends a copy of it to the backup controller. When you create or extend a current plan, the primary controller sends a copy of the CP, NCP, and LTP files to the backup controller.
      - Switching from primary controller to backup controller
        You can plan to switch processing from a primary controller to its backup (for example, for maintenance reasons) or command the backup controller to take over from the primary controller for an unexpected event, such as a system crash or controller abend.
      - Browsing the list of job steps
        When a controller switch occurs, you might want to browse the list of steps that were run for the jobs in started status before the switch occurred.
      - Restoring the primary controller
    - Setting error codes
    - Restart and cleanup
    - Automatic recovery of jobs and started tasks
    - Conditioning the processing of operations
    - Defining and managing cross dependencies
    - Running event-driven workload automation
    - Job tailoring
    - Job scheduling and WLM
    - Controlling the system where a z/OS job is to be executed
    - Loop detection and analysis
  - Controlling and monitoring
    Learn how to manage the workload when it becomes part of a plan and is run with real dates and times.
  - TSO commands
  - Batch programs
  - Report examples
  - Supported z/OS Commands
  - Status, error, and reason codes
  - Fields displayed in ready and error lists
  - Defining event rules and invoking EQQLSENT macro
  - HCL Workload Automation for Z ISPF variables allowed in the EQQAJCLE panel
- Scheduling End-to-end with z-centric Capabilities
- Quick Reference
- Diagnosis Guide and Reference
- Workload Automation Programming Language for z/OS User's Guide and Reference
- Driving HCL Workload Automation for Z

Applying maintenance to your environment

To apply maintenance to both the primary and backup controllers, complete the following steps.

About this task

Stop the primary controller.
On the backup controller, ensure that the connection with the primary controller closed (the EQQMLOG file shows the message EQQBT17W CONNECTION RESET BY PEER) and stop it.
Apply the required maintenance on both controllers.
Start the backup controller and check that EQQMLOG shows the following message:
```
EQQN135I SYNCHRONIZATION CHECK REQUEST SENT TO PRIMARY CONTROLLER
```
Start the primary controller.

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