![]() In Horizon 7, the View Storage Accelerator feature is turned on by default, which allows ESXi 5.5 Update 2 and later hosts to cache common virtual machine disk data.In other cases, rack density, storage connectivity, manageability and other considerations can make minimizing the number of servers in a deployment a better choice. Note that physical RAM costs are not linear and that in some situations, it can be cost-effective to purchase more smaller servers that do not use expensive DIMM chips. For information about calculating the amount of RAM required per virtual machine, see Estimating Memory Requirements for Virtual Machine Desktops. Although you can have between 8 and 10 virtual desktops per CPU core, if virtual desktops have 1GB or more of RAM, you must also carefully consider physical RAM requirements. Think of memory capacity in terms of virtual desktop RAM, host RAM, and overcommit ratio.For information about calculating CPU requirements for each virtual machine, see Estimating CPU Requirements for Virtual Machine Desktops. As a general framework, consider compute capacity in terms of 8 to 10 virtual desktops per CPU core.Consolidation ratios can vary significantly, based on usage patterns and environmental factors. There is no substitute for measuring performance under actual, real world scenarios, such as in a pilot, to determine an appropriate consolidation ratio for your environment and hardware configuration. Although many factors affect server selection, if you are optimizing strictly for acquisition price, you must find server configurations that have an appropriate balance of processing power and memory. Horizon 7 is most cost-effective when you maximize the consolidation ratio, which is the number of desktops hosted on an ESXi host. A node is a single VMware ESXi host that hosts virtual machine desktops in a Horizon 7 deployment. ![]()
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