Monitor, recover and reprocess IMS messages to maintain smooth queue operations in any environment.
Overview
zOS Queue Control & Recovery
IMS™ Queue Control Facility for z/OS® manages live IMS message queues in shared and nonshared environments. It can query, browse, load, unload, reprocess, and restore messages, prevent queue overflows, recover shared MSGQ structures, support multi-CEC sysplex operations, and provide ongoing IMS Tools enhancements.
Features
Key features
Monitors IMS message queue activity to help prevent overflow conditions before they impact operations. Configurable thresholds, partition values, alerts, and automated actions enable proactive queue management, helping maintain availability and system performance.
Processes messages from IMS system logs, message queues, and shared queues using user-defined selection criteria. Generates output datasets and detailed reports with quantitative information, enabling analysis, validation, auditing, and targeted message handling.
Simplifies recovery and maintenance tasks after planned or unplanned outages. Supports application recovery and lets administrators query, browse, load, unload, and manage IMS messages across both shared and nonshared queue environments.
Retrieves messages requiring reprocessing from IMS queues, system logs, cold queues, and recovery datasets. Supports both shared and nonshared queue environments, helping restore interrupted workloads and ensuring messages return to the appropriate processing flow.
Helps identify, examine, and remove obsolete or unneeded messages from IMS queues. By reducing queue buildup and resource consumption, it improves performance, reclaims valuable space, and helps prevent buffer shortages that can affect system stability.
Provides an ISPF-based interface for selecting servers and IMS subsystems, viewing queue status, querying messages, managing destinations, unloading and reloading messages, and maintaining queue overflow protection tables in nonshared environments.
Use cases
Prevent disruptions and streamline recovery
Maintain message availability and operational continuity across IMS environments. Support multi-CEC sysplex operations, automatically manage cold and warm start recovery scenarios, and monitor queue capacity through configurable notification thresholds to help prevent overflows and keep processing running efficiently.
Helps operations teams run queue management and message recovery activities across multiple CECs within a sysplex. This approach supports distributed workloads, improves operational flexibility, and helps maintain processing continuity across interconnected IMS environments.
Helps teams restore message processing following cold and warm starts. Messages can be requeued before a cold start and recovered from dead letter queues after a warm start, helping reduce downtime and accelerate application recovery.
Helps teams identify queue growth before it affects operations. Up to 10 configurable Queue Space Utilization Notification thresholds can be defined for small and large messages, helping administrators anticipate capacity issues and avoid queue overflows.
Resources
Discover expert resources
Stay up to date with the latest IMS Queue Control Facility for z/OS information. Access the datasheet and documentation to understand new capabilities, review configuration documentation for deeper insights that support deployment, configuration, and ongoing operations on IMS Queue Control Facility for z/OS.
IBM IMS is a high-performance hierarchical database and transaction manager for z/OS designed to secure and scale critical business applications.