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Slow performance with vscan enabled due to overloaded or disconnected AV Scanner/s

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • Vscan
  • Trend Micro
  • Symantec

Issue

  • Slow performance / High latency in CIFS, introduced by Vscan. 
  • Disabling Vscan resolves the latency issue
Mon Dec 20 16:20:54 +0000 [cluster1: kernel: Nblade.vscanNoRegdScanner:error]: For Vserver "svm1", AV Connector running on the AV server "10.xx.xxx.xxx" does not have a registered scan-engine to it.
Mon Dec 20 16:20:54 +0000 [cluster1: OffboxVScanTableUpd: Nblade.scannerDisconnected:notice]: Vserver "svm1" disconnected from Vscan server (IP: 10.xxx.xxx.xxx).
  • Networking issues have been ruled out

 

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