Skip to main content
NetApp Knowledge Base

Windows 2008 lun access lost with, error "Microsoft DSM returned a bogus Path to MPIO device identifier"

Views:
589
Visibility:
Public
Votes:
0
Category:
data-ontap-dsm-for-windows-mpio
Specialty:
san
Last Updated:

Applies to

  • Windows Server 2008 SP2
  • Windows Server 2008 R2 
  • Microsoft Multipath I/O (MPIO) and Microsoft Device Specific Module (DSM)

Issue

  • Windows 2008 SP2 or R2-based Server connected to NetApp SAN using Microsoft Multipath I/O (MPIO) and Microsoft Device Specific Module (MS-DSM).
  • In this scenario, when multiple paths are lost concurrently, host loses access to the storage (LUN). 
  • a "System Event ID 33" error message, indicating "Microsoft DSM returned a bogus Path to <MPIO device identifier>", is encountered.

 

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.