Skip to main content
NetApp Knowledge Base

Hyper-V host registers many messages regarding write latency on VHDX files

Last Updated:

Applies to

  • NetApp AFF storage
  • Microsoft Hyper-V Server 2019
  • Veeam Backup


A Hyper-V host on which Veeam Backup is in use may register a large amount of messages similar to the following:

An I/O request for device 'X:\Path\to\cluster\storage\some_virtual_disk.VHDX' took 10289 milliseconds to complete. Operation code = WRITE16, Data transfer length = 4096, Status = SRB_STATUS_SUCCESS


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.
Scan to view the article on your device