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This is a term that defines one instance of Windows Server 2019 running on a physical server or a virtual machine. Similarly, if a motherboard on a server has two sockets, but only one processor is installed, you only need to license all the cores of the installed processor. If a processor is disabled in the system, the disabled processor doesn’t need licenses. A license for 16 cores is the minimum license you can buy. The price for 8 dual-core licenses is the same as the price for a single 16-core license. Despite this calculation, you still need to buy licenses for 16 cores because of the second rule.
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For example, if you have two dual-core processors in a server, you must buy 4 licenses to cover 8 cores. At least 8 cores must be licensed for a processor. The minimum number of 2-core licenses per processor is 4. Even if your server has one processor, and it has fewer than 16 cores, you must buy licenses for 16 cores. The minimum number of core licenses that must be bought for a physical server is 8 (16 cores are covered). There are also 4-core and 16-core licenses. One core license covers two CPU cores (a 2-core pack license). A core with hyper-threading is counted as one core. If a processor supports hyper-threading, logical cores are not licensed. All physical processor cores on a server must be licensed.The general rules that are applied to each physical server running Windows Server 2019 on a physical server as a host operating system or on virtual machines on this server are listed below. Server manufacturers are not increasing the number of processors in assembled servers, but are installing processors with more cores. Windows Server 2019 uses a per-core licensing model for servers, which reflects the trend of producing powerful multi-core processors (with a high number of CPU cores) and the number of cores per processor increased significantly. Refer to the Microsoft website and contact Microsoft sales managers before you buy licenses in order to avoid mistakes such as inadvertently violating the license agreement. Licensing rules can change or be updated for newer product versions. Note: This blog post provides an overview of licensing to familiarize you with Windows Server licensing. Two remote sessions (+1 local session) are available without licensing multiple remote desktop sessions. RDS CALs are not a substitute for standard CALs to license multiple RDP sessions on Windows Server 2019. In order to allow multiple RDP sessions, you have to buy RDS CALs and then configure your server. RDS CALs are not the same as Windows CALs for users or devices. If you want to provide multiple remote desktop sessions for your Windows Server 2019, you need to buy Remote Desktop Services (RDS) CALs. Remote Desktop Protocol (RDP) is used to provide access to remote desktop services on the server for remote users. The number of client access licenses needed depends on the number of users or devices that will be connected to a server.
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The number of server licenses needed depends on the number of processors and processor cores. There are two types of licenses for Windows Server 2019 – server licenses and client access licenses (CALs).
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The licensing scheme of Windows Server 2019 is similar to Windows Server 2016. This blog post covers Windows Server licensing (including Microsoft virtualized server licensing) to help you estimate Windows Server cost for a physical server and virtual machines. Customers are confused with the new licensing model when trying to estimate Windows server licensing costs and buy the correct license. Windows Server licensing became more complicated with the release of Windows Server 2016 (compared to Windows Server 2012). Windows Server 2019 is an operating system that is widely used on physical servers and virtual machines including Microsoft virtualized servers in organizations. By Michael Bose The Essentials of Windows Server Licensing for Virtual Machines