How many servers are in the Amazon EC2 cloud?
Like many other Internet companies, Amazon does not disclose information about its infrastructure, including the number of servers. But an analyst from Accenture Technology Labs made his own calculation: he managed to have at least 454,400 servers in seven data centers of Amazon Web Services.
Interestingly, 70% of them are located in the US East region of Virginia.
Amazon uses a regular pattern of assigning internal IP addresses: each instance receives an address of 10.xxx, and each rack receives a range of 10.xxx/22, that is, you can define all the virtual machines in that rack. The researcher scanned AWS by DNS queries inside the EC2 network, using the external IP addresses of the instances, their ranges are known .
The number of blades directly was estimated on the basis of information on 64 blades per rack - four 10U chassis, 16 blades on each chassis (this assumption is not based on anything).
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Read more about the research methodology in the author's blog .
This assessment has already caused debate among experts. They argue how many servers can actually be in each rack, because the company has changed several generations of equipment. But in any case, the general opinion converges to the fact that Amazon in terms of the number of servers has already overtaken all hosting providers, who publicly disclose information about the number of servers, but have not exactly caught up with Google, which has about 900 thousand servers in the network of data centers.
It is also necessary to note the rather rapid growth of the infrastructure of Amazon, the graph shows the increase in the number of racks in the US East region, for a specified period it added an average of 110 racks per month.
Interestingly, 70% of them are located in the US East region of Virginia.
| Number of server racks | Number of blade servers | |
| US East (Virginia) | 5030 | 321 920 |
| US West (Oregon) | 41 | 2624 |
| US West (Northern California) | 630 | 40 320 |
| EU West (Ireland) | 814 | 52,096 |
| AP Northeast (Japan) | 314 | 20,096 |
| AP Southeast (Singapore) | 246 | 15,744 |
| SA East (Sao Paulo) | 25 | 1600 |
| Total | 7100 | 454,400 |
Amazon uses a regular pattern of assigning internal IP addresses: each instance receives an address of 10.xxx, and each rack receives a range of 10.xxx/22, that is, you can define all the virtual machines in that rack. The researcher scanned AWS by DNS queries inside the EC2 network, using the external IP addresses of the instances, their ranges are known .
The number of blades directly was estimated on the basis of information on 64 blades per rack - four 10U chassis, 16 blades on each chassis (this assumption is not based on anything).
')
Read more about the research methodology in the author's blog .
This assessment has already caused debate among experts. They argue how many servers can actually be in each rack, because the company has changed several generations of equipment. But in any case, the general opinion converges to the fact that Amazon in terms of the number of servers has already overtaken all hosting providers, who publicly disclose information about the number of servers, but have not exactly caught up with Google, which has about 900 thousand servers in the network of data centers.
It is also necessary to note the rather rapid growth of the infrastructure of Amazon, the graph shows the increase in the number of racks in the US East region, for a specified period it added an average of 110 racks per month.
Source: https://habr.com/ru/post/140069/
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