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IMS Workload Router

IBM Supported z/OS

Sharing IMS Transactions

Vendor

IBM

Product Overview

The IMS Workload Router (WLR) architecture comprises several key components designed to efficiently manage and route transactions across multiple IMS systems. The Workload Router address space is the central process that handles transaction routing decisions. The Rule Definition component allows administrators to define routing rules based on various criteria, such as transaction IDs, user IDs, or system load.

The Monitor component provides real-time monitoring of transaction activity and system performance. The IMS Connect interface facilitates communication between the WLR and the IMS systems. Communication between components occurs primarily through internal z/OS mechanisms and TCP/IP.

The Workload Router address space receives transaction requests and consults the Rule Definition component to determine the appropriate IMS system for routing. The Monitor component collects performance data and provides status information. The system uses configuration files to store routing rules and system parameters.

The z/OS security environment, such as RACF, is used for access control and authentication. The system generates SMF records for auditing and performance analysis. The primary administrative interface is through z/OS console commands, such as START WLR, STOP WLR, DEFINE RULE, and DISPLAY STATUS.

Compared to other solutions, IMS Workload Router provides specialized transaction routing capabilities tailored for IMS systems.

Frequently Asked Questions

What is IMS Workload Router (WLR)? What does it do in simple terms?

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IMS Workload Router (WLR) is a software component for IBM z/OS systems. It directs and balances transaction workloads across multiple IMS systems, whether in a Parallel Sysplex or a non-Sysplex environment. It helps optimize resource utilization and improve transaction response times by intelligently routing transactions to the most appropriate IMS system.

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When was IMS Workload Router first released?

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IMS Workload Router was first released in 1996.

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What are the primary benefits of using IMS Workload Router?

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The primary benefits include improved transaction response times, optimized resource utilization across IMS systems, simplified application management, and enhanced scalability. It allows for efficient handling of transaction workloads, especially in complex IMS environments.

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What types of IMS systems can IMS Workload Router manage?

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IMS Workload Router can manage transactions across both single IMS systems and multiple IMS systems within a Parallel Sysplex or across multiple non-Sysplex environments. It provides flexibility in managing diverse IMS configurations.

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What are some of the most common commands used with IMS Workload Router?

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Common commands include those for starting and stopping the WLR address space, defining routing rules, monitoring transaction activity, and managing system parameters. Specific commands include START WLR, STOP WLR, DEFINE RULE, DISPLAY STATUS, and UPDATE PARM.

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What protocols does IMS Workload Router use for communication?

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IMS Workload Router uses TCP/IP for communication between the router and the IMS systems. It also uses internal IMS communication mechanisms for transaction routing and management within the IMS environment.

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What are the main components of the IMS Workload Router architecture?

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The main components include the Workload Router address space, the Rule Definition component, the Monitor component, and the IMS Connect interface. These components work together to route, monitor, and manage transactions.

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What types of APIs does IMS Workload Router expose?

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IMS Workload Router does not expose external APIs directly. Its functionality is primarily accessed through its control commands and configuration interfaces within the z/OS environment. Integration is achieved through IMS Connect and the IMS systems themselves.

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How does IMS Workload Router improve business agility?

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By enabling dynamic routing and balancing of transactions, IMS Workload Router allows businesses to quickly adapt to changing workload demands. It ensures that transactions are routed to the most available and efficient IMS systems, improving response times and resource utilization, which supports business agility.

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What cost savings can be realized by using IMS Workload Router?

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Cost savings can be realized through optimized resource utilization, reduced need for over-provisioning of IMS systems, and improved operational efficiency. By efficiently distributing workloads, it helps to maximize the return on investment in IMS infrastructure.

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How does IMS Workload Router contribute to improved customer experience?

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By ensuring faster and more consistent transaction response times, IMS Workload Router enhances the customer experience. It helps maintain service level agreements (SLAs) and ensures that critical transactions are processed efficiently, leading to greater customer satisfaction.

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How does IMS Workload Router support disaster recovery and business continuity?

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IMS Workload Router supports disaster recovery and business continuity by enabling the routing of transactions to backup IMS systems in case of a primary system failure. This ensures that critical business operations can continue with minimal disruption.

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What authentication methods are supported by IMS Workload Router?

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IMS Workload Router relies on the security features of the underlying z/OS and IMS systems. It does not provide its own authentication mechanisms. Authentication is handled by the security features of the z/OS environment, such as RACF or other security managers.

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What access control model is used?

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IMS Workload Router leverages the access control models provided by the z/OS security environment, such as RACF. Access to the Workload Router address space and its commands is controlled through security profiles and user permissions defined within the z/OS security manager.

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Does IMS Workload Router use encryption?

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IMS Workload Router itself does not perform encryption. Any encryption of data in transit or at rest is handled by the underlying IMS and z/OS security features, such as TLS/SSL for network communications or encryption provided by the storage systems.

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What audit and logging capabilities exist?

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IMS Workload Router integrates with the z/OS logging and auditing facilities. It generates SMF (System Management Facilities) records that can be used for auditing transaction routing and system activity. These records provide detailed information about transaction processing and system events.

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What administrative interfaces are available for managing IMS Workload Router?

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The primary administrative interface is through z/OS console commands. Administrators use commands such as START WLR, STOP WLR, DEFINE RULE, and DISPLAY STATUS to manage the router. Configuration is typically done through configuration files and the IMS system definition.

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How is user management handled?

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User management is handled through the z/OS security environment, such as RACF. Access to the Workload Router address space and its commands is controlled by defining user profiles and assigning appropriate permissions within the security manager.

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What are the main configuration parameters?

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Main configuration parameters include routing rules, system definitions, and performance thresholds. These parameters are defined in configuration files and are used to control how transactions are routed and balanced across the IMS systems.

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What monitoring and logging capabilities exist?

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IMS Workload Router provides monitoring through the DISPLAY STATUS command, which shows the current status of the router and transaction activity. Logging is provided through SMF records, which capture detailed information about transaction routing and system events. These logs can be used for performance analysis and troubleshooting.

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IMS Workload Router

Product Overview

Frequently Asked Questions

What is IMS Workload Router (WLR)? What does it do in simple terms?

undefined

undefined

When was IMS Workload Router first released?

undefined

undefined

What are the primary benefits of using IMS Workload Router?

undefined

undefined

What types of IMS systems can IMS Workload Router manage?

undefined

undefined

What are some of the most common commands used with IMS Workload Router?

undefined

undefined

What protocols does IMS Workload Router use for communication?

undefined

undefined

What are the main components of the IMS Workload Router architecture?

undefined

undefined

What types of APIs does IMS Workload Router expose?

undefined

undefined

How does IMS Workload Router improve business agility?

undefined

undefined

What cost savings can be realized by using IMS Workload Router?

undefined

undefined

How does IMS Workload Router contribute to improved customer experience?

undefined

undefined

How does IMS Workload Router support disaster recovery and business continuity?

undefined

undefined

What authentication methods are supported by IMS Workload Router?

undefined

undefined

What access control model is used?

undefined

undefined

Does IMS Workload Router use encryption?

undefined

undefined

What audit and logging capabilities exist?

undefined

undefined

What administrative interfaces are available for managing IMS Workload Router?

undefined

undefined

How is user management handled?

undefined

undefined

What are the main configuration parameters?

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What monitoring and logging capabilities exist?

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