This article explains
Azure Virtual Machine Scale Sets (VMSS) allow users to create and manage groups of load-balanced virtual machines (VMs). Organizations that require high availability at scale utilize scale sets to ensure application resiliency.
With the flexible orchestration mode, customers can add standard Azure VMs to VM Scale Sets. However, Microsoft Azure reports these machines both as regular virtual instances and as scale set-specific instances, resulting in duplicate instance records in the CMDB. As a result, users may see duplicates in the 'Related Objects' section of a selected Azure VM Scale Set.
e VM Scale Set Instance
To differentiate virtual machines types for reporting, address the following fields:
VM Scale Set
VM Scale Set ID
These fields help to identify whether virtual machines were created initially as a part of the Azure VM Scale Set:
If the VM Scale Set fields are empty, the VM was originally created as a standard Azure VM and then added to a scale set.