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2539644 - Reclaim datavolume effected by data backup and System Replication SAP HANA

Symptom

  • You are trying to run a data volume reclaim to reduce the size of the data volume.
  • System Replication is causing issues for the data volume reclaim due to snapshots on the primary.
  • You implemented the parameter changes recommended from KBA 1999880 FAQ: SAP HANA System Replication - Point 19: 'How can RECLAIM DATAVOLUME be executed when system replication is active?'
  • The reclaim is running for so long it is failing when daily backup runs with the following error:
  • Could not execute 'alter system reclaim datavolume <host>120 defragment' in <hours: mins:sec>. 
  • SAP DBTech JDBC: [2]: general error: Shrink canceled, probably because of snapshot pages.
  • How can you stop the daily backup causing the volume reclaim to cancel? 
  • Is there any way to tell the progress of the data volume reclaim? i.e. how far through is it?
  • Is there any further advice for large data volume reclaims?


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Environment

SAP HANA 1.0

Product

SAP HANA 1.0, platform edition

Keywords

RECLAIM, datavolume, defragment , KBA , HAN-DB-HA , SAP HANA High Availability (System Replication, DR, etc.) , HAN-DB-PER , SAP HANA Database Persistence , How To

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