EC2 101Posting my First Blog about EC2 Service of AWS
What is EC2 ?? It is Elastic Compute.
It is a web service that provides resizable compute capacity in the cloud. Amazon Ec2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity both up and down as your computing requirements change.
It has changed the economics of cloud computing and allows you to pay for service which you actually use previously you want to go and buy a physical server and was not scalable.
Let us look at the pricing options
On-Demand – Allows you to pay a fixed rate by the hour ( or by the second) with no commitment.
Reserved – Entering into a contract ( 1 or 3 years) . Provides you with a capacity reservation and offers significant discounts.
Spot – moves around the all the time. Think about it like a stock market. Enables you to bid whatever price you want for instance
Dedicated hosts – Physical EC2 servers for use. IT can be really good for things like Vmware and Oracle.
Use Cases for each of the pricing model
On-Demand –
- Perfect for users that want the low cost and flexibility of Amazon EC2 without any up-front payment or long-term commitment
- Applications with short-term, spiky, or unpredictable workloads that cannot be interrupted.
- Applications being developed or tested on Amazon EC2 for the first time.
- Applications with steady-state or predictable usage
- Applications that require reserved capacity
- Users can make upfront payments to reduce their total computing costs even further
- Standard RIs( up to 75% off on demand)
- Convertible RIs( up to 45% off on-demand) feature the capability to change the attributes of the RI as long as the exchange results in the creation of reserved instances of equal or greater value.
- Scheduled RIs are available to launch within the time window you reserve. This option allows us to match our capacity reservation to a predictable recurring schedule that only requires a fraction of day, a week, or a month.