AWS EC2 Virtual Server Instance
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An AWS EC2 Virtual Server Instance is a virtual server within AWS EC2.
- Context:
- It can (typically) be of an EC2 Instance Type, e.g. m3.medium.
- It can (typically) be based on an EC2 AMI Image.
- It can (typically) be associated to an EC2 Security Group.
- It can function as a Virtual Private Server.
- It can be measured in terms of Elastic Compute Units.
- It can range from being a Fixed-Price EC2 Instance (EC2 On-Demand Instance or EC2 reserved instance) to being an EC2 Spot Instance.
- It can communicate with: AWS EBS Service, AWS S3 Service.
- It can be associated with:
- an AWS Console Page, such as
https://console.aws.amazon.com/ec2/v2/home?region=us-east-1#Instances:sort=instanceId - an EC2 Instance ID, such as:
i-c306eff3 - an AMI ID, such as:
ubuntu/images/hvm-ssd/ubuntu-xenial-16.04-amd64-server-20160907.1 (ami-2ef48339)
- an AWS Console Page, such as
- …
- Example(s):
- a m4.large which was $0.0178 per Hour (in AWS USW2 on ~2018-03-18).
- a p3.16xlarge.
- a AWS EC2 T3 Instance, such as: t3.micro.
- …
- Counter-Example(s):
- See: Virtual Private Server, Computer Cluster Node, AWS ECS, AWS Service, AWS Elastic Container Registry (ECR).
References
2014
- (Wikipedia, 2014) ⇒ http://en.wikipedia.org/wiki/Amazon_Elastic_Compute_Cloud#Instance_types Retrieved:2014-4-26.
- EC2 uses Xen virtualization. Each virtual machine, called an "instance", functions as a virtual private server. Amazon sizes instances based on "Elastic Compute Units". The performance of otherwise identical virtual machines may vary. [1], the following instance types were offered: * On-demand: pay by hour without commitment * Reserved: rent instances with one-time payment receiving discounts on the hourly charge * Spot: bid-based service (runs the jobs only if the spot price is below the bid specified by bidder — the spot price is claimed to be supply-demand based, however, research refutes this claim )
- ↑ J. Dejun, G. Pierre and C.-H. Chi. EC2 Performance Analysis for Resource Provisioning of Service-Oriented Applications. In: Proceedings of the Workshop on Non-Functional Properties and SLA Management in Service-Oriented Computing, November 2009.
2011
Type CPU Units CPU Cores Memory * Micro (t1.micro)Up to 2 ECUs1 Core613 MB * Large (m1.large)4 ECUs2 Cores7.5 GB * Extra Large (m1.xlarge)8 ECUs4 Cores15 GB * High-Memory Extra Large (m2.xlarge)6.5 ECUs2 Cores17.1 GB * High-Memory Double Extra Large (m2.2xlarge)13 ECUs4 Cores34.2 GB * High-Memory Quadruple Extra Large (m2.4xlarge)26 ECUs8 Cores68.4 GB * High-CPU Extra Large (c1.xlarge)20 ECUs8 Cores7 GB