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CIFS sessions close due to idle timeout for Linux and other SMB clients

  1. Last updated
    May 1, 2025
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18,296
Visibility:
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Votes:
17
Category:
ontap-9
Specialty:
nas
Last Updated:
5/1/2025, 2:14:38 PM

Applies to

  • ONTAP 9.5P17, 9.6P13, 9.7P10 and later
  • CIFS
  • Linux/UNIX SMB client
  •  Windows SMB client

Issue

  • After upgrading to a fixed version of Bug 1274307, SMB clients may experience intermittent failures:
  • Input/output error while running commands such as ls
  • "Host is down" messages after timeout
  • A packet trace shows STATUS_USER_SESSION_DELETED as response from the server
  • Packet traces can also show resets to the SMB connections
  • Linux client raises the following error message :

Dec 23 08:34:34 hostname kernel: CIFS VFS: Autodisabling the use of server inode numbers on \\SYSTEM.ad.company.co.jp\vol_sample. This server doesn't seem to support them properly. Hardlinks will not be recognized on this mount. Consider mounting with the "noserverino" option to silence this message.

 

 

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