Azure Arc is a Microsoft solution to be able to centrally manage and operate IT resources across multiple clouds and locations.
Azure Arc offers simplified management, faster app development, and consistent Azure services. Easily organize, govern, and secure Windows and Linux servers, SQL Server, and Kubernetes clusters across data centers, the edge, and multi-cloud environments in Azure. Architect, design and build cloud-native apps anywhere without sacrificing central visibility and control. Get Azure innovation and cloud benefits by deploying consistent Azure applications, machine learning, and data services on any infrastructure.
It allows central inventory management for resources like Windows, Linux, and SQL servers, including ways to monitor and manage them. IT provides a similar approach for Kubernetes clusters.
Azure Arc bridges the gap from different environments into the Azure cloud and, as such, combines all resources in one place without actually running those resources in Azure.
Azure Arc-enabled servers enables you to manage your Windows and Linux physical servers and virtual machines hosted outside of Azure, on your corporate network, or other cloud providers. This management experience is designed to be consistent with how you manage native Azure virtual machines. When a hybrid machine is connected to Azure, it becomes a connected machine and is treated as a resource in Azure. Each connected machine has a Resource ID enabling the machine to be included in a resource group. Now you can benefit from standard Azure constructs, such as Azure Policy and applying tags. Service providers managing a customer's on-premises infrastructure can manage their hybrid machines, just like they do today with native Azure resources, across multiple customer environments using Azure Lighthouse.
To deliver this experience with your hybrid machines, you need to install the Azure Connected Machine agent on each machine. This agent does not deliver any other functionality, and it doesn't replace the Azure Log Analytics agent.