Vi consiglio la lettura di questo articolo su Amazon EC2 di Cloudscaling.com : Amazon’s EC2 Generating 220M+ Annually | Cloudscaling
Ci sono dati abbastanza interessanti:
- Amazon does not oversubscribe cores
- Amazon uses Rackable servers, mostly 2U dual-socket systems, with 8 cores, probably the S2108 models
- Some of their older systems are 2U dual-socket systems with 4 cores total
- The AWS target cost for servers is roughly $2-2.5K
- Initial overall target utilization rate for EC2 was 70-75%
- Recently AWS has been having regular capacity issues (due to growth?)
- Amazon is beginning to move some retail site capacity onto EC2
- RAID is used for the disk subsystem, probably in a RAID-0 (striped) configuration[1]
- Most of the servers are likely in the US availability zones vs. the EU zones, maybe 75-80% of total capacity
- Amazon probably runs 8 500GB SATA drives per system
- At 2U, Amazon runs 16-18 servers per rack, probably 16
- Amazon uses the same, or a very similar, physical hardware platform for all instances sizes; it has changed over time and there are a few generations, but they don’t buy or ’silo’ the hardware if they can help it[2]
Anche utile considerare come usino secondo l'autore le istanze e le loro capacità, la distribuzione è più o meno questa:
- m1.small 21%
- m1.large 35%
- m1.xlarge 20%
- c1.medium 13%
- c1.xlarge 11%
Il tutto dovrebbe generare introiti ad Amazon per 220 milioni/anno, dai dati si potrebbero fare diverse ipotesi anche sullo sviluppo di questo prodotto a mio parere, ma più di tutte è comprensibile perchè altre aziende stanno lanciando un modello del tutto simile a quello di Amazon![]()


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