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Performance optimization of full load and ongoing replication tasks from self-managed Db2 to Amazon RDS for Db2

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This article discusses optimizing the performance of full load and ongoing replication tasks when migrating data from a self-managed Db2 database to Amazon RDS for Db2 using AWS Database Migration Service (AWS DMS).

Specifically, the article covers:

  • Solution overview and prerequisites
  • Optimizing full load migration performance by tuning settings like MaxFullLoadSubTasks, CommitRate, WriteBufferSize, MaxFileSize, and using segmented/parallel load
  • Optimizing ongoing replication performance by tuning settings like BatchApplyTimeoutMin/Max, BatchApplyMemoryLimit, BatchSplitSize, MemoryLimitTotal, MemoryKeepTime, and splitting tasks across tables
  • Detailed performance test results comparing default and tuned settings for full load and ongoing replication tasks
  • Conclusion and best practices for improving AWS DMS performance
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