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Thin LUN access is degraded and performance degradation

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Applies to

  • ONTAP 9.4P2
  • VMware
  • Linux
  • Windows

Issue

  • During SCSI UNMAP operations with thin LUN access becomes degraded and performance degradation occurs
  • tail -f /var/log/vmkernel.log indicates SCSI command failed Cmd 0x42 for SCSI UNMAP operations

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