Skip to main content
NetApp Knowledge Base

Poor NDMP backup performance when backup application is configured to use e0M

Last Updated:

Applies to

  • ONTAP 9
  • NDMP


  • NDMP control or data connections are using the e0M management port
  • In most cases this results in poor NDMP backup performance
  • In rare cases, using e0M for data operations (including NDMP) can result in an environment shutdown as described in Bug 1286273
  • EMS.log Message:

Fri Nov 19 16:00:24 +0000 [netapp-1_1: ndmpdc: ndmp.ctrl.on.e0m:alert]: NDMP control connection is established on "" which is hosted on port "e0M". This is a low bandwidth port and might impact performance.



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.


  • Was this article helpful?