由于 Trend Micro AV 扫描问题导致的 CIFS 延迟

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适用场景

ONTAP 9
Trend Micro ServerProtect for Storage （ SPFS ） 6.0

问题描述

防病毒扫描导致的CIFS延迟
即使 "scan-mandatory" 选项设置为off、也会发生问题描述
事件日志中可能会出现以下错误：

[?] Fri Dec 16 02:11:08 +0530 [Node-01: kernel: Nblade.vscanConnInactive:notice]: For Vserver "SVM1", ONTAP(R) forcibly closed the vscan connection originated from the nonresponsive AV server "170.a.b.c".

Fri Dec 16 09:29:39 +0530 [Node-01: kernel: Nblade_CifsOperationTimedOut_1:error]: params: {'remoteBladeID': '87de8df4-eb84-11e5-ad1e-3fd4a0c213e7 (Node-01)', 'cmdRestartCnt': '0', 'vserverId': '3', 'commandName': 'SMB2_COM_CREATE', 'isQosEnabled': 'QoS_disabled', 'lastSpinNpError': 'SPINNP_ERR_OFFBOX_VSCAN_REQD', 'localIpAddress': '170.x.y.z', 'lastCsmError': 'CSM_OK', 'clientIpAddress': '170.a.b.c', 'vserverName': 'SVM1', 'suspensionCnt': '4', 'dsId': '1044'}