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High memory consumption by VSCAN causing poor performance

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Applies to

Found In Versions

  • ONTAP 9.5P7 (or lower)
  • ONTAP 9.6, 9.6P1

Issue

  • Extremely poor latency across the Node.
  • This would impact every protocol and all kinds of I/Os being served on the affected Node.
  • wafl.memory.statusVeryLowMemory:alert could be seen.

 

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