DB2 9 & 10 for z/OS Overview

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Migration Planning WorkshopUtility Enhancements• Unless explicitly stated, new utility functions are only availablein NFM• Improved access to SYSUTILX by removal of theUTSERIAL lock• REORG SHRLEVEL(CHANGE) for complete catalog/directory– Hashes and links are removed during ENFM processing– Row level locks are relied upon– No changes to utility jobs are necessary– Greatly improves access to catalog/directory• Improves concurrency for online REORG– Update of catalog statistic information for inline REORGs occursafter access to the table is allowed178© 2011 IBM Corporation
Migration Planning WorkshopUtilities Highlights• Extensive support has been added to DB2 utilities for thepureXML– CHECK, COPY, LOAD, MERGECOPY, REBUILDINDEX, RECOVER, REORG, …• More online utilities– Rebuild Index SHRLEVEL CHANGE– Reorg LOB now supports SHRLEVEL REFERENCE(space reclamation)– Check data, LOB and repair locate … SHRLEVEL CHANGE– Check index SHRLEVEL REFERENCE supports parallel for> 1 index• Online REORG BUILD2 phase elimination179© 2011 IBM Corporation
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DB2 9 & 10 for z/OS Overview

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