Amazon Web Services (AWS) Elastic Compute Cloud (EC2)
- 1. Amazon Web Services Elastic Compute Cloud (EC2) Kaivalya Shah
- 2. Presentation Outline What is EC2? Types of Instances Instance Purchase Options AMI & AWS Marketplace Launching an EC2 Instance Elastic IPs and ENIs Instance Store What is EBS? Types of Volumes EBS Volume Pricing Snapshots References 2
- 3. WhatisEC2? Compute service by Amazon Web Services which lets users create instances for their use in servers which are physically placed at Amazon’s datacenters. IaaS (Infrastructure as a Service) cloud service model. Instances ~ Virtual Machines. Xen bare metal hypervisor. 3
- 4. Typesof EC2 Instances Instance Type Typical Use-case T2 Testing, Bursty Utilization M4/M3 General Purpose C4/C3 Compute Optimized Clustering G2 Graphics Intensive 3D Application Streaming P2 General Purpose GPU Machine Learning R4/R3 Medium Scale Memory Intensive Applications X1 Large Scale Memory SAP HANA, Spark F1 Xilinx FPGAs D2 Dense Storage, 48 TB HDD MapReduce, log processing I3/I2 High I/O (NVMe SSD) NoSQL Databases 4 Trick to remember: Dr. Mc Gift PX
- 5. InstancePurchaseOptions On-Demand Spot Reserved Instances All Upfront No Upfront Partial Upfront Dedicated Hosts 5
- 6. AMIand AWSMarketplace Amazon Machine Image (AMI) • Template with software configuration: Operating system, applications, and services. • Quickly launch new instances. • Regional. AWS Marketplace • Catalog of AMIs specific to a variety of applications. • Available while launching an EC2 instance. 6
- 7. Launchingan EC2Instance To launch an EC2 instance, we can click the “Launch Instance” button on the EC2 dashboard. Further steps are as following: 1. AMI: Quick Start, My AMIs, AWS Marketplace. OS and pre-installed libraries. 2. Instance Type: Depending on use case. 3. Instance Details: No. of instances, VPC, Subnet, IAM role, Shutdown behavior, Termination Protection, Tenancy. 4. Storage: EBS Volumes, root and additional. 5. Tags: Key-Value pairs containing information about the instance 6. Security Group: Assign existing or new policy. 7. Review and Launch. Select or generate authentication key-pair. 7
- 8. ElasticIPsand ENIs An Elastic IP address is a public IPv4 address, which can be attached/detached to EC2 instances. An Elastic Network Interface (ENI) is a virtual network interface that can be attached to an EC2 instance in a VPC. ENIs have the following attributes: i. A primary private IPv4 address ii. One or more secondary private IPv4 addresses iii. One Elastic IP address (IPv4) per private IPv4 address iv. One public IPv4 address v. One or more IPv6 addresses vi. One or more security groups vii. A MAC address viii.A source/destination check flag ix. A description 8
- 9. InstanceStore Physically attached to the host server Temporary (Ephemeral) storage like buffers and caches Available storage depends on instance type Cleared if the instance is stopped or terminated Data is not preserved while creating AMI Can only be added while launching a new EC2 instance Needs to be bundled to S3 for making an AMI Instance cannot be stopped if root volume is instance store 9
- 10. WhatisEBS? A storage service by Amazon Web Services which provides block level storage volumes. A volume can be attached to only 1 EC2 instance at a time. EBS volumes can be formatted using any file system supported by the operating system. By default, root volumes are deleted on EC2 instance termination but this option can be disabled. 10
- 11. Typesof Volumes Volume Type Description Volume Size Performance General Purpose SSD (GP2) Balance of price and performance 1 GB – 16 TB IOPS: 10,000 Throughput: 160 MB/s Provisioned IOPS SSD (io1) High- performance SSD 4 GB – 16 TB IOPS: 20,000 Throughput: MB/s Throughput Optimized HDD (st1) Low cost and high throughput 500 GB – 16 TB IOPS: 500 Throughput: MB/s Cold HDD (sc1) Cheapest storage for infrequently accessed data 500 GB – 16 TB IOPS: 250 Throughput: MB/s 11
- 12. EBSVolume Pricing General Purpose SSD (gp2) volumes $0.10 per GB-month of provisioned storage Provisioned IOPS SSD (io1) volumes $0.125 per GB-month of provisioned storage $0.065 per provisioned IOPS-month Throughput Optimized HDD (st1) volumes $0.045 per GB-month of provisioned storage Cold HDD (sc1) volumes $0.025 per GB-month of provisioned storage 12
- 13. Snapshots Point in Time backups of EBS volumes. Incremental. Stores modified blocks in S3. Full restore ability even after deletion of a snapshot version. $0.05 per GB-month of data stored. 13
- 14. Some Important Points Recommendation: Stop instance before taking snapshot of the root volume. Unencrypted snapshots can be shared across accounts and even to the public. Creating an AMI also creates a snapshot of the root volume. For deleting that snapshot, you must deregister the AMI first. Maximum 5 pending snapshots per volume. If the volumes are configured to be part of a RAID array, any one of the following steps has to be taken before taking the snapshot: Freezing the File System Unmounting the RAID array Shutting down the EC2 instance 14
- 15. References I. https://aws.amazon.com/documentation/ec2/ II. http://docs.aws.amazon.com/AWSEC2/latest/UserGui de/concepts.html III.https://aws.amazon.com/ec2/instance-types/ IV. https://aws.amazon.com/ec2/pricing/ V. http://docs.aws.amazon.com/AWSEC2/latest/UserGui de/EBSVolumeTypes.html VI. https://aws.amazon.com/ebs/pricing/ 15
- 16. Thank You 16
Editor's Notes
- #6: On-Demand: Spiky unpredictable Traffic. Spot: If terminated by EC2, you don’t pay for the hour Dedicated Hosts: A single host is assigned and we can create as many instances on that host. Pay per hour, price depends on host configuration. Max 2 per region per host type.
- #7: Limit: 50 AMIs per region with max 25 from the same origin
- #9: Masking failure of instance by remapping. Limit: 5 Elastic IPs per region. Pricing: Only if it’s not associated with an EC2 instance, instance is stopped or it is a second elastic IP of an instance.
- #12: EBS Optimized EC2 Instances provide within 10% of the baseline performance Root volumes cannot be magnetic HDDs Magnetic Standard previous generation, deprecated by AWS, can be used as root