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Application accessing CIFS share may fail when setting an atime of -2 on a file

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • CIFS

Issue

  • Application fails to write a log file to ONTAP CIFS share
  • Client sets atime value of -1 on filehandle, then some time after the client sets atime value of -2 on same filehandle and receives STATUS_USUCCESSFUL error.

Example from packet trace

10.6.1.123        10.6.4.28       SMB2    SetInfo Request FILE_INFO/SMB2_FILE_BASIC_INFO File: PATH\TO\FILE\file1.ext

SetInfo Request (0x11)
    [Filename: PATH\TO\FILE\file1.ext]
    StructureSize: 0x0021
    Class: FILE_INFO (0x01)
    InfoLevel: SMB2_FILE_BASIC_INFO (0x04)
    Setinfo Size: 40
    Setinfo Offset: 0x0060
    Reserved: 0
    Additional Info: 0x00000000
    GUID handle File: PATH\TO\FILE\file1.ext
    SMB2_FILE_BASIC_INFO
        Create: No time specified (0)
        Last Access: Not representable >>>>>>>> (i.e. 0xfffffffe)
        Last Write: No time specified (0)
        Last Change: No time specified (0)
        File Attributes: 0x00000000
        Reserved: 00000000

10.6.4.28       10.6.1.123        SMB2    SetInfo Response, Error: STATUS_UNSUCCESSFUL

 

 

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