Identifying active CIFS sessions that should be terminated

Before performing a nondisruptive upgrade or downgrade, you should identify and gracefully terminate any CIFS sessions that are not continuously available.

About this task

Continuously available CIFS shares, which are accessed by Hyper-V or Microsoft SQL Server clients using the SMB 3.0 protocol, do not need to be terminated before upgrading or downgrading.

Steps

  1. Identify any established CIFS sessions that are not continuously available: vserver cifs session show -continuously-available !Yes -instance
    This command displays detailed information about any CIFS sessions that have no continuous availability. You should terminate them before proceeding with the ONTAP upgrade or downgrade.
    Example
    cluster1::> vserver cifs session show -continuously-available !Yes -instance
    
                            Node: node1
                         Vserver: vs1
                      Session ID: 1
                   Connection ID: 4160072788
    Incoming Data LIF IP Address: 198.51.100.5
          Workstation IP address: 203.0.113.20
        Authentication Mechanism: NTLMv2
                    Windows User: CIFSLAB\user1
                       UNIX User: nobody
                     Open Shares: 1
                      Open Files: 2
                      Open Other: 0
                  Connected Time: 8m 39s
                       Idle Time: 7m 45s
                Protocol Version: SMB2_1
          Continuously Available: No
    1 entry was displayed.
    
    
  2. If necessary, identify the files that are open for each CIFS session that you identified: vserver cifs session file show -session-id session_ID
    Example
    cluster1::> vserver cifs session file show -session-id 1
    
    Node:       node1
    Vserver:    vs1
    Connection: 4160072788
    Session:    1
    File    File      Open Hosting                               Continuously
    ID      Type      Mode Volume          Share                 Available
    ------- --------- ---- --------------- --------------------- ------------
    1       Regular   rw   vol10           homedirshare          No
    Path: \TestDocument.docx
    2       Regular   rw   vol10           homedirshare          No
    Path: \file1.txt
    2 entries were displayed.