Submit a ticketCall us

Get a crash course on Network Monitoring delivered right to your inbox
This free 7-day email course provides a primer to the philosophy, theory, and fundamental concepts involved in IT monitoring. Lessons will explain not only how to perform various monitoring tasks, but why and when you should use them. Sign up now.

Home > Success Center > Network Performance Monitor (NPM) > Virtual machine is not linked to nodes in Orion

Virtual machine is not linked to nodes in Orion

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

Views: 90 Votes: 0 Revisions: 11

Issue:

Virtual machines are not linked to nodes in Orion.

Cause:

Virtual machine mapping exception. The following error is found in VIM.BusinessLayer.log:

Exception in mapping Virtual machines to Nodes System.Data.SqlTypes.SqlNullValueException: Data is Null. This method or property cannot be called on Null values.

Resolution:

To resolve the VM mapping exception:
1. Stop Orion Services -
2. Create a backup of the Orion database. This is done via MS SQL Management Studio - Creating a Database Backup.

3. Run the following script in MS SQL Server Management Studio:
  UPDATE dbo.VIM_VirtualMachines SET NodeID=NULL WHERE NodeID NOT IN(SELECT NodeID FROM dbo.Nodes)
4. Run the DB maintenance:
  1.     Go to Start > Programs > SolarWinds Orion > Advanced Features > Database Maintenance
  2.     Click Start.
5. Start Orion services - How to Start/Stop Orion Services.
 
Last modified
00:01, 23 Jun 2016

Tags

Classifications

Public