Submit a ticketCall us

Webinar: Web Help Desk for HR, Facilities and Accounting Departments
This webinar will focus on use cases for HR, Facilities and Accounting.

Having a unified ticketing and asset management system for all the departments in your company can provide end-users with a seamless experience and make things easier for your IT team. Yet, with different business tasks and objectives, many departments don’t fully understand the capabilities of Web Help Desk and how the software can be customized for effective use in their departments.
Register Now.

Home > Success Center > Network Performance Monitor (NPM) > Snapshots of VMs with an incorrect date are not deleted by alert management actions

Snapshots of VMs with an incorrect date are not deleted by alert management actions

Created by Interspire Import, last modified by MindTouch on Jun 23, 2016

Views: 43 Votes: 0 Revisions: 10



The Delete Snapshot alert trigger management action does not delete snapshots of Hyper-V VMs. The issue can occur for more than one Hyper-V VM on the same host.


NPM on Hyper-V


The snapshots of the affected VMs are displayed with an incorrect creation date in the list of snapshots in the Delete Snapshots dialog.


When a virtual machine snapshot is created in a Hyper-V environment, the creation date of the snapshot is saved incorrectly. This is a known issue with Hyper-V.

If a virtual machine contains a snapshot with a creation date that is lower than the minimum SqlDateTime value (January 1, 1753), the date is considered invalid, and the Delete Snapshot action by design does not delete the snapshot.

For more information, see the Hyper-V documentation and the Microsoft Technet forums.

Last modified
23:34, 22 Jun 2016