Skip to main content
NetApp Knowledge Base

NFS clients experience disconnections, time-outs, or performance issues due to client tuning parameters

  1. Last updated
  2. Save as PDF
Views:
3,648
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

Data ONTAP 7-Mode

Issue

Generic performance issues, NFS disconnection or timeouts may be experienced by NFS clients in relation to a mechanism called NFS Input Flow control.

If the NetApp storage controller resets an NFS TCP session, a message similar to the following is reported in the storage controller logs:

Shutting down idle connection to client (x.x.x.x) where receive side flow control has been enabled. There are X bytes in the receive buffer.

Note: This feature is completely different from Ethernet flow control which utilizes pause frames.

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.