CDC recovery center

Mainframe CDC Monitoring, Recovery, and Validation Resource Center 

Your CDC pipeline doesn't have to fail to create risk. Delays, gaps, latency issues, and small replication problems can quietly undermine data quality, operational processes, and trust in the data used for analytics and AI long before a failure occurs. This resource center provides practical guidance across the full CDC recovery lifecycle, from identifying early warning signs and addressing emerging issues to preparing for recovery and building the business case for improvement.
 
 
 
 
 


 

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Where are you in the CDC recovery journey?

 

CDC Recovery Journey

Find the guidance you need

01 MONITOR

Your CDC pipeline isn't down. Are you sure it's healthy?

A running CDC pipeline can still be headed toward failure. Learn how to identify growing lag, stalled processing, stale-data exposure, and changing recovery conditions before a small issue turns into a missed SLA, outage, major recovery event, or business disruption.

KEY QUESTIONS AT THIS STAGE

  • Is replication running, and is it actually keeping up?
Insight

Su canal de suministro de los CDC no está caído. ¿Está seguro de que está en buen estado?

Un proceso de optimización de los sistemas CDC en funcionamiento aún puede estar encaminándose hacia un problema de recuperación.

/es-es/insights/cdc-pipeline-isnt-down-are-you-sure-healthy

02 ASSESS

Before you restart, do you know what the failure affected?

Before you restart, understand exactly what the failure affected. Define the incident window, identify affected data and downstream consumers, quantify the gap, and determine the most effective recovery approach.

KEY QUESTIONS AT THIS STAGE

  • Do you have enough information to choose the right recovery path?
Insight

Antes de reiniciar, ¿sabe qué consecuencias tuvo el fallo?

Evalúe la brecha de datos, la exposición posterior y las limitaciones de recuperación antes de decidir qué hacer a continuación.

/es-es/insights/you-restart-do-you-know-what-failure-affected

03 RECOVER

The most dangerous CDC recovery mistakes often happen after the initial failure.

Before restarting replication, answer seven critical questions about pipeline state, source history, catch-up requirements, recovery options, and downstream impact to validate your recovery approach and avoid turning a manageable failure into a major recovery event.

KEY QUESTIONS AT THIS STAGE

  • How do we know we're choosing the right recovery approach?
Insight

El error más peligroso de los CDC en la recuperación ocurre después del fracaso.

Antes de reiniciar, responda siete preguntas que determinarán si la recuperación tiene éxito o crea un problema mayor.

/es-es/insights/most-dangerous-cdc-recovery-mistake-happens-after-failure

04 VALIDATE

The pipeline is running again. Can you trust the data?

Recovery isn't complete just because replication is running again. Learn how to investigate discrepancies, validate recovery results, and verify that recovered data is complete, current, and trustworthy before declaring the incident resolved.

KEY QUESTIONS AT THIS STAGE

  • What evidence supports the all-clear decision?
Insight

El proceso se ha reanudado. ¿Puede confiar en los datos?

Puede que se esté eliminando el retraso. El panel de control está en verde. Los registros se están moviendo de nuevo. La llamada de conexión ya está terminando. Pero queda una pregunta sin respuesta: ¿Podemos confiar en el objetivo?

/es-es/insights/pipeline-running-again-can-you-trust-data

05 IMPROVE

When does a CDC recovery problem become a platform problem?

Recovery shouldn't feel like a one-off project every time. Learn how to recognize when recurring recovery delays, manual effort, and reliance on specialists point to a broader platform issue.

KEY QUESTIONS AT THIS STAGE

  • Is this an incident or a pattern?
Insight

¿Cuándo deja de ser un problema de recuperación de los CDC un problema de plataforma?

Todos los equipos de replicación experimentan interrupciones. La verdadera pregunta es cuánto esfuerzo, incertidumbre y riesgo conllevan posteriormente.

/es-es/insights/cdc-recovery-problem-become-platform-problem

06 EVALUATE

How do you know a CDC vendor's recovery claims will hold up?

Recovery capabilities are easy to promise and hard to prove. Learn which recovery scenarios vendors should demonstrate, and how to structure a proof of concept that validates recovery performance under real-world failure conditions.

KEY QUESTIONS AT THIS STAGE

  • Has the vendor demonstrated their platform can recover from real-world failures?
Insight

¿Cómo saber si las reclamaciones de recuperación de un proveedor de los CDC se sostendrán?

Pruebe el estado de reinicio, la recuperación, la validación, el comportamiento de reproducción, los diagnósticos y los límites de recuperación antes de elegir una plataforma CDC.

/es-es/insights/how-do-you-know-cdc-vendors-recovery-claims-will-hold
Worksheet

Worksheet CDC Recovery POC Evaluation Worksheet 

Use evidence, limitations, and configuration dependencies to support the decision.

/sites/default/files/media/documents/cdc-recovery-poc-evaluation-worksheet.xlsx

07 JUSTIFY

Recovery risks are obvious during an incident and hard to explain afterward.

Learn how to translate recovery issues into operational risk, business impact, measurable cost, and investment outcomes management can evaluate.

KEY QUESTIONS AT THIS STAGE

  • What is the cost of carrying this risk versus addressing it? 
Insight

Cómo elaborar un plan de negocios para la inversión en recuperación de los CDC

Traduzca las deficiencias en la recuperación en riesgos empresariales, costes de inacción, alternativas y resultados de inversión medibles.

/es-es/insights/how-build-business-case-cdc-recovery-investment
Worksheet

CDC Recovery Business Case Worksheet 

Translate CDC recovery evidence into risk, cost, alternatives, measurable outcomes, and an executive recommendation.

/sites/default/files/media/documents/cdc-recovery-business-case-worksheet.xlsx

Common CDC Recovery Terms

TermDefinition
Replication LagThe elapsed time or processing distance between current source activity and the data reflected at the target.
BacklogAccumulated changes that have not yet been processed or applied.
Retained Source HistoryLogs, journals, archived logs, or other source information that may be required during recovery.
Recovery WindowThe time period affected by a replication interruption that must be analyzed, recovered, or validated.    
Restart StateSaved processing information that helps determine where replication may resume.
Catch-Up The process of closing the gap between source activity and target state.
ResynchronizationA process used to reconcile source and target data when standard catch-up is insufficient.
ValidaciónThe process of confirming recovered data is complete, current, and trustworthy before declaring recovery complete.            
Retained Source HistoryLogs, journals, archived logs, or other source information that may be required during recovery.
RBARelative Byte Address, a Db2 for z/OS log-position concept used in recovery investigations.
LRSNLog Record Sequence Number used in Db2 for z/OS data-sharing environments.

About This Resource Center

Content in this CDC Recovery Center is written and reviewed by Rocket Software's Data Replicate & Sync product, engineering, and solution engineering teams.

Rocket Data Replicate & Sync (RDRS) supports enterprise replication across mainframe, distributed, and cloud environments. Evaluate RDRS using the same standards described throughout this resource center

The important question isn’t simply whether replication can restart. It’s whether the operating team can understand what happened, recover confidently, and establish when the resulting data is ready to trust.

Questions you may have

View all CDC recovery guidance