Pricing models:
1. On Demand: Allows you to pay a fixed rate by second with no commitment.
2. Reserved: Provides you with a capacity reservation, and offer a significant discount on the hourly charge for an instance. 1 or 3 years Terms.
3. Spot: Enable you to bid whatever price you want to for instance capacity, providing for even greater savings if your applications have flexible start and end times.
4. Dedicated Hosts: Physical EC2 server dedicated for your use. Dedicated Hosts can help you reduce cost by allowing you to use your existing server-bound sofeware license.
Amazon Elastic Block Store (EBS):
Amazon EBS allow you to create storage volumes and attach them to Amazon EC2 instance. Once attached, you can create a file system on top of these volumes, run a database, or use them in any other way you would use a block device.
EBS Vloume Types:
1. SSD:
1A. General Purpose SSD: Balances price and performance for a wide variety of workloads.
1B. Privisioned IOPS SSD: Highest performance SSD volume for mission-critical low-latency or high-throughput workloads.
2. Magnetic:
2A. Throughput Optimized HDD: Low cost HDD voiume designed for frequently accessed, throughput-intensive workloads.
2B. Cold HDD: Lowest cost HDD volume desinged for less frequently accessed workloads.
Reference:
1. AWS Documentation - Amazon Elastic Compute Cloud Documentation
https://docs.aws.amazon.com/ec2/
2. Udemy - AWS Solutions Architect - Associate:
https://www.udemy.com/aws-certified-solutions-architect-associate/
最初發表 / 最後更新: 2019.03.12 / 2020.06.08
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