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Vscanが断続的に 切断され、ファイルがスキャンされず、「vscanConnBackPressure」エラーが表示される

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Category:
ontap-9
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nas
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環境

  • ONTAP 9
  • Vscan 

問題

  • クライアントでデータアクセスの問題が断続的に発生する
  • Vscanが SVMから断続的に切断され、 ファイルがスキャンされない
  • EMS ログに次のエラーメッセージが表示される

 [?]  Fri Dec 08 04:13:44  0000 [Node1: kernel: ems.engine.suppressed:debug]: Event 'Nblade.vscanConnBackPressure' suppressed 439 times in last 84151 seconds.
 [?]  Fri Dec 08 04:13:44  0000 [Node1: kernel: Nblade.vscanConnBackPressure:error]: For Vserver "svm", AV server "10.48.xx.xx" is too busy to accept new scan requests.
 [?]  Fri Dec 08 04:16:18  0000 [Node1: kernel: Nblade.vscanConnInactive:notice]: For Vserver "svm", ONTAP(R) forcibly closed the vscan connection originated from the nonresponsive AV server "10.48.xx.xx".
 [?]  Fri Dec 08 04:16:18  0000 [Node1: OffboxVScanTableUpd: Nblade.scannerDisconnected:notice]: Vserver "svm" disconnected from Vscan server (IP: 10.48.xx.xx).

  • VSCANサーバでキューイングされた要求のしきい値を1から24に増やしても、問題は維持されます。

 

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