EC2 cloud stands for elastic compute cloud. It is dedicated to developers and provides resizable cloud computing capabilities to them to better manage their operations and workflows by making web-scale computing easier.
This section covers some of the most relevant queries that the users come across when leveraging Amazon EC2.
Amazon EC2 equips you with compute resources in the cloud. It provides a web service interface with which you can obtain and configure the capacity for resources based on your cloud computing requirements. It is resizable which means that you can scale up and scale down the capacity as your requirements keep changing. Additionally, it helps to keep the costs optimized since you are billed only for the capacity you use. Moreover, it reduces the time to market from hours to minutes by instantly providing the servers and you can have complete control over them as well.
For getting started with Amazon EC2, you need to have an Amazon Web Services Account. If you do not have one, create that. Once you have created that account, you can go to the Amazon EC2 detail page and then click on the “Sign Up for this Service” button. For the instructions to get started, you can follow the “Getting Started Guide” in Amazon EC2 documentation available on AWS webpage.
Phone Number verification is required for security purposes and to have your contact details for the case the support staff ever needs to contact you. It is a small process which requires you to only receive a phone call and enter a pin during registration.
Until recently, where developers were stuck with the traditional hosting services, it was highly difficult for them to meet the spike in traffic and resource requirements, since such services provided only a fixed number of resources. Moreover, the small developers do not have the capital to invest in massive compute resources. Amazon EC2 helps overcome these issues.
Amazon EC2 is a web service model that enables compute over the cloud infrastructure. With the elastic nature of its services, EC2 allows the developers to easily manage the spikes by scaling up and scaling down the capacity based on their resource requirements. Also, the developers remain in full control of the resources and can use them as per their business specific needs with flexibility and convenience. Furthermore, Amazon EC2 maintains the costs as well by facilitating the developers to pay only for the capacity they actually use. So, even as they flourish in their business and their requirements spike, they need not worry about meeting the resource requirements and capacity since they can easily do that with the Amazon EC2 instance inexpensively.
For running the Amazon EC2 instances, you need to set up your account and select or create AMIs. After that your systems are ready to boot. You can use the RunInstances API call and run any number of On-Demand Instances, you only need to specify the number of instances that you wish to launch. After your instances are launched, you can check their status by using DescribeInstances API calls. For terminating the instances, TerminateInstances API call is used.
Additionally, you can also run the instances on the Amazon EBS Boot Partition. When running instances on the boot partition, you can stop and start the instances as per your convenience to preserve the data in it while release the compute resources. For releasing the compute resources, use StopInstances API call and then when you are ready to restart the boot partition, use StartInstances API call.
Furthermore, you can optimize the costs for your compute resources by using SpotInstances. However, they work differently, and you need to get into more details about them. You can find more information in different documentations available over the web.
The time taken by the systems to boot and start running generally depends on factors such as the size of AMI, how recently has the AMI been launched, and the number of instances launched. But generally, the systems start running in less than 10minutes. However, if there are images being launched for the first time in the system, it would take a little longer time to boot.
In Amazon EC2, you can set up and configure everything right from your operating systems to the applications for your instances using the Amazon Machine Image (AMI).
It is a pre-packaged environment that includes the bits to set up and boot your instances. You can easily create the AMIs as per your requirements and then bundle them and upload to the Amazon S3. Then the Amazon EC2 provides reliable and scalable storage of the created AMIs through the Amazon EBS and Amazon S3.
Alternatively, if you do not wish to create your own AMIs, you can simply choose them from the bundle of readily available AMIs to load and store your instances.
You can access your systems using the automatically generated DNS names. A RunInstances call initiates the execution of application stack and while doing that, it returns a set of DNS names for the systems being booted. This name can be used to access the relevant system as if it is present within your data center.
Yes, Amazon EC2 is used along with Amazon S3 to run the instances with the root device and support the local instance storage. Using Amazon S3 provides the option for a reliable storage of the instances while the developers are able to easily leverage the compute capabilities through Amazon EC2.
Yes, you can run the On-Demand Instances based on your vCPU-based On-Demand Instance Limit. Initially, you can purchase 20 Reserved Instances and simultaneously get the Spot Instances based on your dynamic Spot Instances limit per region.
You can nevertheless have the limits increased by filling in a “Amazon EC2 limit increase request form.” The limits are increased after taking the request into due consideration.
Yes, there is a limit put on the number of emails that could be sent from the Amazon EC2 instances to maintain the quality of Amazon EC2 email addresses and account. However, you can have the limits increased based on your requirements or even have them removed after filling out a request form.
The elastic compute capabilities of Amazon EC2 is what makes it so preferable for the developers. With these capabilities, you can scale up or scale down the capacity based on your requirements within minutes while commissioning hundreds and thousands of instances at a single time.
Amazon EC2 instances support a wide variety of operating systems which include Linux, Ubuntu, Windows Server, Redhat Enterprise Linux, SUSE Linux Enterprise Server, openSUSE Leap, Fedora, Fedora CoreOS, Debian, CentOS, Oracle Linux, and a lot more. Additionally, Amazon EC2 is continuously making efforts to support more operating systems.
With the traditional hosting services, the resources are available for a predetermined time at a predetermined cost. It brings some limitations as to the use of resources, and are also costly. With Amazon EC2 instances, the resources are available on-demand as it enables compute over cloud. It offers flexibility and cost-efficiency in using resources as it allows scaling up and scaling down the resources based on requirements. Also, unlike the traditional hosting services, Amazon EC2 provides full control over the compute resources. Furthermore, your costs remain optimized since you need to pay only for the capacity you actually use.
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