Unfortunately at least for me , it is not. Instead, it is 64 single-socket servers in a single chassis. So it does run Windows, but as 64 separate instances. A way to think about it is that it's a very compact blade system with a bunch of integrated networking and storage. It's designed for Hadoop and other scale-out applications. But not for scale-up. True, but my understanding is that there is nothing in the operating system that prevents more processors, but that the supported and TESTED limit is At the time the statement was made, the largest system Microsoft could test on was Microsoft has been constantly increasing the number of supported processors as hardware has become available.
I'm pretty confident that we will see the number increasing in a future release as the larger machines become available. In Windows Server , the limit was 64 logical processors, and apparently that was a hard limitation before the introduction of processor groups. One thus wonders how many processor groups of 64 logical processors each a particular instance of Windows can have. Office Office Exchange Server. Not an IT pro? Sign in. United States English. Ask a question. Quick access. Search related threads.
Remove From My Forums. Standard has never supported 8. Prior to , it supported 4, and then the licensing changed with so that Standard would be sold per processor socket with a maximum of two. Technically, the binaries are the same for Standard and Datacenter, so you can most likely get it to run with more somehow, but it is not a supported configuration.
The maximum number of sockets for Datacenter would be 64 - that has not changed from I make this statement based on the fact that Datacenter supports a maximum of 64 virtual CPUs when run as a virtual machine. Virtual machines don't have the distinction of socket versus hyper-thread versus core. They see what is presented to them as a processor.
But, I doubt very much that you will find any off-the-shelf 64 socket systems; most vendors are relying on the core densities instead of socket density in order to deliver the horsepower. The above referenced document still shows as the maximum number of logical processors, with or without Hyper-V. I don't really know of the statement about virtual machines seeing no difference between logical processors and physical processors, because Hyper-V supports matching the host NUMA regardless of VM virtual processor count.
Each Standard license allows you 2 sockets and 2 VMs. But by buying multiple licenses for a single host, you can increase this. So, e. You may want to do this if you are running e.
No need for Datacenter for large hosts unless you also want a large of VMs. Well, SeaMicro's servers easily beat 8 sockets, and are probably the only readily-available servers that can do The question still remains: what are the edition-specific supported sockets?
Is Standard really limited, technically, to 8? SeaMicro is interesting - thanks for the info. But it doesn't look like it runs Windows at least, not yet. Linux only for now. If you purchase Standard edition today but find you need to expand the virtualization capacity of your licensed server, you can do one of the following: Purchase additional Standard edition licenses and assign them to the same physical server, giving you the rights to run additional instances of Windows Server.
The server must have the appropriate number of licenses assigned to it to ensure coverage of all of the virtual OSEs that are running at any given time. Purchase a Software Assurance Step-up license to Datacenter edition, changing the license to a higher edition that allows unlimited virtual OSEs.
To use this benefit, your underlying license must have Software Assurance. With the Windows Server R2 Standard edition licensing model, you can grow your virtualization environment by either buying a step-up license to Datacenter edition if you have Software Assurance, or by simply buying additional Standard edition licenses and assigning them to the same physical server. For example, if you have a two-processor server and want to run a total of four VOSEs, you can purchase two Standard edition licenses and assign them to the same server.
Additional examples are shown in the following table. Windows Server R2. Windows Server R2 captures the experience Microsoft has gained from building and operating public clouds to deliver a highly dynamic, available, and cost-effective server platform for your datacenter and private cloud. The following information provides an overview of your key licensing options. Licensing editions Compare features in all editions to determine the ideal solution for your virtualization and cloud computing needs.
If you purchased 8 licenses of Windows Server Standard and licensed all the physical server cores, you are allowed to run up to 2 VMs with a Windows Server on a licensed physical host. The Datacenter license allows you to run an unlimited number of virtual OSs on a licensed host.
What if you need to run more than two virtual machines on a server with a Standard license? You will have to buy the required number of licenses based on the following consideration: one Standard license allows you to run 2 virtual machines. For example, you want to license a dual-processor 8 cores per CPU server with four virtual machines. According to the Windows Server Standard licensing model, you need to buy 16 dual-core Window Server Standard licenses 2 sets of licenses closing all physical cores or 8 dual-core Datacenter licenses you can upgrade Windows Server edition without reinstalling.
Note that the licensing procedure is as follows: first the physical cores are covered, and then the virtual machine instances. According to the current Microsoft prices, it is worth to buy the Windows Server Datacenter edition if you are going to run 14 or more virtual machines on one physical host.
If you use virtualization on your physical server with Windows Server , you can use the host OS only to maintain and manage the Hyper-V role and virtual machines. You cannot install Windows Server on a physical server, run two VMs on it and get three full-fledged Windows server instances for your tasks. Software Assurance SA provides the right to transfer the product license between physical hosts for most Microsoft server products. But Windows Server is an exception to this rule.
According to the licensing agreement, the license can be migrated between the hosts once in 90 days. How to license a virtualization farm, in which VMs can move between hypervisors host OSs? In this scenario, you will have to buy that number of licenses for each physical server covering the maximum number of virtual machines that can be run on it at any time including the high availability scenarios when all virtual machines of the farm are moved to the one of the hosts.
In the case of the Datacenter edition, one set of licenses will be sufficient for each physical host, covering all cores in the minimum configuration, 8 Datacenter dual-core licenses. Since this license allows you to run an unlimited number of VMs. Therefore, you should choose the Windows Server license depending on the maximum number of VMs on a single host. Below are some examples of calculating Windows Server licenses for physical hosts when using virtualization.
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