Replacing vCenter without redoing vRanger configuration

Get the current VM-id via VMware vSphere PowerCLI by running the following commands:
 

Connect-VIServer <your VCSA>
(Get-VM -name <VM_display_name>).id 

 
Open SQL Management Studio and run the following command to show all tasks:
 
SELECT * FROM [vRangerPro].[dbo].[BackupTemplateTask] ORDER BY InventoryNodeName
 
use vRangerPro
UPDATE BackupTemplateTask SET InventoryNodeVirtualizationObjectId='vm-id' WHERE InventoryNodeName='VM_display_name'
 
Restart the vRanger Service and run the task!
 
Source: http://en.community.dell.com/techcenter/data-protection/f/4784/t/19555352#58593

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