Skip to main content
NetApp Knowledge Base

Why is MPIO Setting in W2k16 with iSCSI ONTAP 9 path verify enabled ( PVE ) set to 0 ?

  1. Last updated
  2. Save as PDF
Views:
524
Visibility:
Public
Votes:
0
Category:
data-ontap-dsm-for-windows-mpio
Specialty:
san
Last Updated:

Applies to

  • ONTAP DSM
  • NetApp ONTAP
  • Microsoft Windows® Server

Answer

  • This is a registry value set and is just one option you can set at the host OS layer effectively probing the target on all paths every 30 seconds. Set  to 0 by Windows Unified Host Utilities 7.1 ( Please check latest documentation for any change in this . 
    1. HKLM\SYSTEM\CurrentControlSet\Services\mpio\Parameters\PathVerifyEnabled

Please consult these technical support resources before making any changes to these parameters as any unsupported configuration by all vendors can cause loss of data access.

  1. The host operating system.
  2. Host bus adapter ( HBA ) vendor and MPIO driver documentation for your initiator.
  3. Storage platform best practice documentation.

Additional Information

Resources to check MPIO
  1. Multipath verification for Windows hosts.
  2. Interoperability Matrix Tool.
  3. Data ONTAP DSM 4.0.1 For Windows® MPIO Installation and Administration Guide.
  4. Windows Unified Host Utilities 7.1.