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ドメインコントローラの検出で遅延が発生し、CIFSアクセスが一時的に拒否された

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Category:
ontap-9
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nas<a>CIFS</a><a>アクセス拒否</a><a>ドメインコントローラの検出</a>
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のしんだ

環境

  • ONTAP 9
  • CIFS / SMB
  • Windows ドメインコントローラ

問題

  • CIFS共有へのアクセス時にユーザが断続的にアクセスを拒否されることがあります
  • event log showのエントリ: 

ERROR      Nblade.CifsOperationTimedOut: Detected a timed out CIFS operation. SMB command for this operation: SMB2_COM_SESSION_SETUP, Number of times this command was suspended: 1

  • EMS ログ:

kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'remoteBladeID': '00000000-0000-0000-0000-000000000000', 'cmdRestartCnt': '0', 'vserverId': '4', 'commandName': 'SMB2_COM_SESSION_SETUP', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_NO_FO_ERROR', 'localIpAddress': 'xx.xx.xx.xx', 'lastCsmError': 'CSM_OK', 'clientIpAddress': 'xx.xx.xx.xx', 'vserverName': 'SVMNAME', 'suspensionCnt': '1', 'dsId': '0'}

  • SecDのログ:

debug:  Acquiring a new NetLogon connection; favoring new  { in getBestConnection() at src/connection_manager/secd_connection_manager.cpp:815 }
CRIT :  Mutex svcDiscoveryMutex held for 38 seconds { in unlock() at src/utils/secd_lock_maps.cpp:177 }

 

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