I am developing a backend where in I will be exposing APIs for my mobile application. Users can register,add products,share the links of products through email/sms/anywhere and others can click on it and buy the product. This is the simple workflow of the mobile application. The app is an image intensive app which will have image uploads and retrieval which will be done by third party cloud service. SO the image part is not handled by my backend.
Now I am from the development team and have little experience on hardware server side. When I gave the requirement for the infrastructure, they have given asked me the following questions.
- Application/Storage Throughput
- Application throughput (No. of concurrent connections in 3 months , 6 months and 1 year)
- Storage throughput (Data growth in 3 months , 6 months and 1 year)
- HA requirement
- DR requirement
I am not sure how do I forecast the above 3 points. How are through puts calculated? I will on an estimate will be having 10000 users registering on my application in the first month out of which 5000 will be active users. On an average login to application there will be 10 API hits per user which will lead to 5000*10 = 50,000 hits per month which would be 1 API hit per minute,ie ~2 concurrent connections in first month.
Is the calculation goes like this? and how do I calculate the data growth ? Does it mean, a user registers,creates product and if I total the database size consumed for that, is that what is called data growth?
This question would seem pathetic, but I genuinely need help in figuring out how throughputs are calculated for server requirements.