Vscan server reports file is skipped in logs

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Visibility:: Public

Votes:: 0

Category:: ontap-9

Specialty:: nas

Last Updated:

Applies to

Anti virus
All of ONTAP version

Issue

Vscan server reporting file is skipped when in logs when a file is accessed on a volume included in a vscan policy, the request is sent to the AV Connector.

*Packet Trace*

No.     Source                Destination           Time        Protocol Stream     262 10.73.xx.xx          10.73.xx.xx          70.359527   VSCAN2   11         Session Setup Request (test_svm)     263 10.73.xx.xx          10.73.xx.xx          70.362714   VSCAN2   11         Session Setup Reply     264 10.73.xx.xx          10.73.xx.xx          70.362750   SMB2     11         Write Response     265 10.73.xx.xx          10.73.xx.xx          70.363930   SMB2     11         Read Request Len:2048 Off:0 File: vscan     266 10.73.xx.xx          10.73.xx.xx          70.363962   SMB2     11         Read Response, Error: STATUS_PENDING     268 10.73.xx.xx          10.73.xx.xx          71.366315   VSCAN2   11         Scan Request: \volB\New folder\a.txt     269 10.73.xx.xx          10.73.xx.xx          71.369419   SMB2     11         Read Request Len:2048 Off:0 File: vscan     270 10.73.xx.xx          10.73.xx.xx          71.369451   SMB2     11         Read Response, Error: STATUS_PENDING

The AV connector sends the request to the Trend Macro software.

*AV Connector Logs*

71.417: [pipe: xxxx.xxx.xxxxx.xxx]Server: Received 110 bytes, ofsPartReq: [0] 71.417: [Pipe: xxxx.xxx.xxxxx.xxx] magic_num    : [4e74417041760002] session_id   : [efefbbe7642b6820] len          : [110] reqId        : [362917] type         : [4, req_SCAN] 71.417: Sending id 1 (rsrv-id: 0) for \?\UNC\xxx_xxx.xxx.xxx.xxx\ontap_admin$\volB\New folder\a.txt 71.417: Sent!

The Trend Macro software reports that it received the request but then skips the scan and sends a response back to the AV connector.

5632: 4868:0722095301482:SPNT(00000800):* CheckScanTimeOutThread schedule checking ... 5632: 4868:0722095301482:SPNT(00000800):RemoveTimeOutRequest() Now[1469195581], TimeOut[24000] 5632: 4868:0722095301482:SPNT(00000800):RemoveTimeOutRequest() Now[1469195581], TimeOut[24000] 5632: 4868:0722095301482:SPNT(00000800):RemoveTimeOutRequest(), submit time[1469195560] ==> 5632: 4868:0722095307482:SPNT(00000800):* CheckScanTimeOutThread schedule checking ... 5632: 4868:0722095307482:SPNT(00000800):RemoveTimeOutRequest() Now[1469195587], TimeOut[24000] 5632: 4868:0722095307482:SPNT(00000800):RemoveTimeOutRequest() Now[1469195587], TimeOut[24000] 5632: 4868:0722095307482:SPNT(00000800):RemoveTimeOutRequest(), submit time[1469195560] ==> 5632: 4868:0722095307482:SPNT(00000800):File [24][\test_svm.na.bayer.cnb\ontap_admin$\volB\New folder\a.txt] been skipped <<<<<*** 5632: 4868:0722095307482:SPNT(00000800):SendScanResultBackToFiler, send result back to Shim 5632: 7912:0722095310201:SPNT(00000800):Receive VS_ScanRequest(25, \?\UNC\xxx_xxx.xxx.xxx.xxx\ontap_admin$\volB\New folder\a.txt) from filer [MOQZ34] 5632: 7912:0722095310201:SPNT(00000800):GetFilerByName: pszFilerName=MOQZ34, bAddFiler=0 5632: 7912:0722095310201:SPNT(00000800):GetFilerByName: g_FilerList.GetCount()=1 5632: 7912:0722095310201:SPNT(00000800):VS_ScanRequest, Type is SCANTYPE_rpc_cluster

There is no response received by the AV connector for this skip event.
The filer then sends the request again with the same result.

*Packet Trace*

    340 10.73.xx.xx          10.73.104.xx          105.377182 VSCAN2   11         Scan Request: \volB\New folder\a.txt     341 10.73.xx.xx          10.73.104.xx          105.380104 SMB2     11         Read Request Len:2048 Off:0 File: vscan     342 10.73.xx.xx          10.73.104.xx          105.380134 SMB2     11         Read Response, Error: STATUS_PENDING     382 10.73.xx.xx          10.73.104.xx          120.909309 VSCAN2   11         Set Extended Stats     383 10.73.xx.xx          10.73.104.xx          120.909346 SMB2     11         Write Response     476 10.73.xx.xx          10.73.104.xx          135.624036 VSCAN2   11         Scan Request: \volB\New folder\a.txt     477 10.73.xx.xx          10.73.104.xx          135.627476 SMB2     11         Read Request Len:2048 Off:0 File: vscan     478 10.73.xx.xx          10.73.104.xx          135.627518 SMB2     11         Read Response, Error: STATUS_PENDING

After a response is not received again, the vscan session is torn down and the filer disconnects from the vscan server.

*Packet Trace*
503 10.73.xx.xx          10.73.xx.xx          142.483259 VSCAN2   11         Session Teardown Request     504 10.73.xx.xx          10.73.xx.xx          142.485052 VSCAN2   11         Session Teardown Reply     505 10.73.xx.xx          10.73.xx.xx          142.485112 SMB2     11         Write Response, Error: STATUS_END_OF_FILE     506 10.73.xx.xx          10.73.xx.xx          142.485870 SMB2     11         Close Request File: vscan     507 10.73.xx.xx          10.73.xx.xx          142.485901 SMB2     11         Close Response, Error: STATUS_FILE_CLOSED     543 10.73.xx.xx          10.73.xx.xx          162.783746 SMB2     11         Tree Disconnect Request     544 10.73.xx.xx          10.73.xx.xx          162.783775 SMB2     11         Tree Disconnect Response     545 10.73.xx.xx          10.73.xx.xx          162.783783 SMB2     11         Session Logoff Request     546 10.73.xx.xx          10.73.xx.xx          162.783805 SMB2     11         Session Logoff Response