Skip to main content
NetApp Knowledge Base

High Latency with SM-BC

Last Updated:

Applies to

  • ONTAP 9
  • SnapMirror Business Continuity (SM-BC)


  • VMs in unmirrored volume take snapshot very fast.
  • VMs in mirrored volume, cannot respond to ping packets during taking snapshot.
  • VMs are moved to mirrored volume very slowly compared to being moved to a non-mirrored volume.
  • EMS errors are logged on the primary site:
Tue Apr 04 02:38:22 +0800 [Node1-01: repl_Handle_sync_resl: callhome.syncsm.exception:error]: Call home for SNAPMIRROR SYNCHRONOUS EXCEPTION: Network Latency exceeded threshold limit.

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.