Decipher the title: TCO - Total Cost of Ownership - is the total cost of ownership. Read more on the wiki.
Most recently, a very handy calculator has appeared, which offhand gives an idea of what the difference will be in hosting infrastructure between AWS and its own servers. Entering the calculator interface , we select the following criteria:
number of application servers
number of database servers
storage capacity
placement plan (1 or 2 DC for fault tolerance)
annual increase in%
administration costs of the cost of hosting
load model
geographical location
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Very interesting graphs of load models are offered to us:
In general, assessment of the cost of hosting on AWS and in your own DC depends on your settings.
Having made a test data entry, I got this result:
As you understand, these numbers are absolutely not specific and the data can vary greatly. This calculator is intended for top managers, mostly as window dressing. But at the same time, these estimates make it clear how many times you can pay less if you use the resources of cloud providers correctly.
I propose to watch this video about the calculator: