Please visit the blog homepage for the most current posts. Windows Server , which was rolled out in September, has 4 editions, with 2 editions focused on virtualization—Standard and Datacenter. Standard is about A license covers 2 processors, regardless of the number of cores per processor or the clock rate of the processor. All processors in a server must be covered by licenses and no mixing of editions is allowed. The virtual machine rights are quite different for each edition, where Windows Server can only be running in 2 VMs for Standard edition, compared to an unlimited number of VMs for a Datacenter edition license.
From a financial point of view, are there any conditions that would make stacked2 Standard edition licenses more attractive than Datacenter licenses? Modern processors have multiple cores per processor and licensing often follows the number of cores, such as for Microsoft SQL Server But Windows Server is licensed per processor.
The number of VMs that can be effectively run performance wise is limited by the number of cores. Optimization of Datacenter licenses is achieved by maximizing the number of cores and minimizing the number of processor pairs 2 at a time. If VMs are assigned per core, that gives a range of VMs per processor.
If the server has 2 processors that will be covered by 1 Datacenter license, then there can be VMs per server. On the other hand, if you are optimizing your hardware with stacked Standard edition licenses in mind, would you come to a different conclusion? If you have more processors per server and a lower core count per processor, how does that change the outcome?
A server with 4 dual core processors—8 cores. The number of VMs, using our mapping is VMs. At 24 VMs, DE is less expensive. This analysis shows that stacking licenses can make financial sense within very tight boundaries: Table 1.
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