AWS Classroomnotes 19/Apr/2022

AWS Compute Services

• Web Applications
  
  
• Batch Processing:
  • This is processing of transactions in a group or batch
  • No user interaction is required once the batch processing starts
  • These Batch Processing jobs run at regularly schedule times (overnight) or on an needy basis.
  • Examples:
    • Bill generation systems
    • Consolidating faulty transactions/refunds etc….
    • Payroll Systems
• For running these kind of systems, we need servers with some operating systems and some set of softwares installed.
  

Billing Exercise

• Problem

Server - silver
   => 8 vCPU 
   => 32 GB of RAM
   => Charges => 15 rupees/hour

Server - Gold
   => 16 vCPU 
   => 64 GB of RAM
   => Charges => 25 rupees/hour

Storage:

Hardisk => 1 TB => 4 rupees/hour

I will be charging for server when it is running.

I will be chargin for the disk as long as you are using it.

March month:

5 silver servers => ran them for 15 days and deleted
2 gold servers => ran them for 15 days and you have shutdown
How much do you need to pay me? (# waiting till 9:55 AM )

• Solution

silver

per hour => 15 
per day => 15 * 24 => 360
5 silver servers per day => 5 * 360 = 1800
15 days => 15 * 1800 => 27,000

disk per hour => 4
per day => 24 * 4 = 96
5 silver servers (5 disks) => 5 * 96 => 480
15 days => 15 * 480 => 7200

price => 27000 + 7200 => 34200

Gold

per hour => 25 
per day => 25*24 => 600
2 servers per day => 1200
15 days => 15 * 1200 => 18000

Disk

disk per hour => 4
per day => 24 * 4 = 96
2 servers => 192

total usage = 31 * 192 = 5952

gold => 18000 + 5952 => 23,952

Gold + Silver => 34200 + 23,952 => 57952