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.
- 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
TDC-DM7K::> vserver cifs session show -continuously-available Yes -instance
Node: TDC-7K-01
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
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.
- 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
TDC-DM7K::> vserver cifs session file show -session-id 1
Node: TDC-7K-01
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.