How does ec2 charge

With On-Demand instances, you pay for compute capacity by the hour or the second depending on which instances you run. No longer-term commitments or upfront payments are needed.

You can increase or decrease your compute capacity depending on the demands of your application and only pay the specified per hourly rates for the instance you use.

EC2 Linux Pricing. Once created, the EC2 capacity is held for you regardless of whether you run instances or not. Unused Capacity Reservations are priced exactly the same as their equivalent On-Demand instance usage.

If a Capacity Reservation is fully utilized, you only pay for instance usage and nothing towards the Capacity Reservation. If a Capacity Reservation is partially utilized, you pay for the instance usage and for the unused portion of the Capacity Reservation. Learn more about Capacity Reservations here. The pricing below is based on data transferred "in" to and "out" of Amazon EC2. You will be charged for data transfer between Availability Zones with Network Load Balancer or Gateway Load Balancer when cross-zone load balancing is enabled.

Pricing for supported instance types is listed below. The hourly price for EBS-Optimized instances is in addition to the hourly usage fee for supported instance types. If you associate additional EIPs with that instance, you will be charged for each additional EIP associated with that instance on a pro rata basis. To ensure efficient use of Elastic IP addresses, we impose a small hourly charge when these IP addresses are not associated with a running instance or when they are associated with a stopped instance or unattached network interface.

Learn more ». On-Demand With On-Demand instances, you pay for compute capacity by the hour or the second depending on which instances you run. On-Demand instances are recommended for: Users that prefer 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.

To do this, it uses a normalization scale based on the relative size of the instances. For example, an RI for an m4. They offer a smaller discount than Standard RIs, but they come with additional flexibility. Convertible RIs, on the other hand, can be exchanged for other Convertible RIs if the new configuration is of equal or greater value than the remaining value of your existing RIs.

Buying RIs may seem confusing, but a detailed plan will help you get the most savings out of them. Here are a few tips to get you started:. On-Demand Capacity Reservations give you the ability to reserve capacity without the one-year or three-year commitment that comes with a Zonal RI. Like with Zonal RIs, the capacity reservation puts you first in line so you can make sure you have the capacity when you need it.

When you start a Capacity Reservation, you specify an instance size and AZ. While the Reservation is active, you are charged the On-Demand rate for capacity, whether you use it or not. Capacity Reservations can be turned on and off manually, or be set to expire at a specific time. The easiest way to think of it is that you will pay the same amount whether you use the instance or not — the only difference is how the amount is billed. For example, an m5. If you then spin up an m5. So if you have a c5.

On the opposite end of the spectrum from RIs are Spot Instances. With Spot Instances, you bid for for unused EC2 instances. Prices change depending on supply and demand.

If the Spot price of the instance is below your maximum bid and the capacity is available, then your request is fulfilled. AWS can interrupt your Spot Instance when the Spot price exceeds your maximum price, when the demand for Spot Instances rises or when the supply of Spot Instances decreases. Dedicated Hosts can help you address compliance requirements and allow you to use your existing server-bound software licenses.

Like other EC2 options, you can turn Dedicated Hosts on or off at will, and you can purchase reservations to lower costs. But there are a few key differences. When you set up a Dedicated Host, you choose a configuration that determines the kind and number of instances that you can run on it. The hourly price varies depending on the configuration of the Dedicated Host.

Managing your EC2 costs can seem more than a little daunting. It starts with having enough visibility into your costs and usage to provide actionable insights. Once you have a strong reporting and analysis foundation, you can move on to prediction and cost optimization.

A cloud cost management platform like Cloudability is a crucial tool in helping you manage both your current and future EC2 costs.

Tags are metadata labels each with a customer-defined key and a value that you assign to resources so you can keep track of them. Cloudability has a few features that let you take full advantage of your tags and share that valuable data with all your stakeholders for allocation, tracking, rightsizing and more.

That means Environment , environment and typos like envronment will all be sorted into different tags. Tag Mapping lets you take multiple versions of what should be a single tag and map them to one dimension so you can make sure your tags are grouped accurately. Tag Explorer gives you a global view by sorting all of your resources into tag keys and breaking down those resources by tag values. RIs are vital for optimizing your EC2 use and getting the most from your cloud.

The right tools will give you the ability to manage your current portfolio and predict your future use so you can make informed purchases. Cloudability has several features devoted to helping you build a solid RI strategy and a dependable RI portfolio. The Reservation Portfolio provides a global view of RIs from all member and payer accounts in a single place.

It also shows you both your current savings and potential unrealized savings. To make it easy to keep tabs on expiring reservations, the Reservation Portfolio lets you subscribe to a scheduled email alert to warn you about expiring RIs. The RI Planner pulls from your existing inventory and usage data to make recommendations for RI purchases.

By setting your RI parameters, you can focus the recommendations by things like utilization rate, savings rate, term, payment option, etc. The best way to get the most out of your RIs is to revisit your portfolio and purchases on a regular basis, and the RI Planner is vital for these efforts. Full control means that you never have to worry about EC2 costs exploding from out of nowhere. Cloudability is built around giving you the visibility you need along with the tools to proactively prevent cost spikes and to let you know quickly if a spike does occur.

Cloudability offers a wide variety of reports. If you want to see something about your cloud costs or usage, then we have a report to show it to you — and that includes EC2. Get reports on key factors like the effectiveness and usage rate of Spot Instances, your RI waste, your RI coverage rate, a list of untagged EC2 Instances, data transfer costs, and more. Reports can be customized to fit the exact metrics that mean that most to your business. Whether you use Cloudability or not, this kind of information is critical for understanding the financial health of your EC2 architecture.

The Automation feature lets you automatically scale down or stop development and test resources during periods of underutilization. For example, you might want to turn your development resources off during nights and weekends. The Automation feature includes an audit log where you can see each task run, when it was executed and the number of resources affected during the run. Usage and cost anomalies can add up quickly, and you need to know about them as soon as possible.

If a program error spins up a bunch of EC2 instances on Friday at 7PM, you want to find out about it so you can shut it down much earlier than when you log in Monday morning. Anomaly Detection prevents issues like that by monitoring your costs and notifying you when there are unusual spending patterns. Typically, AWS billing files are updated times per day.

Every time they come in, the costs are automatically compared to past usage and anomalous activity is flagged. The comparison includes taking normal usage spikes into account to avoid false positives. When you get an alert, you can have confidence that there really is an anomaly.

EC2 is the core of many cloud architectures. Not sure which EC2 instances are right for you? Apptio Cloudability optimizes cloud resources and translates bills and tags into insights to provide real-time clarity and accountability for consumption. Or Contact Us. All rights reserved. Start a Free Trial. Apptio Blog. Gavin Cahill October 29, C Family — Compute Optimized Compute-optimized instances geared toward applications that need a lot of compute power, with a higher ratio of vCPUs to memory and the lowest cost per vCPU.

An M5 instance can be a good choice. Get some hard data. To save money, take a look at the most recent addition to a family. EC2 prices vary from region to region. If you can be flexible about where your EC2 instances live, then taking the time to do some price comparisons can really pay off.

Automate turning on and turning off your instances. On-Demand Pricing On-Demand pricing means you pay for the compute capacity you need without any long-term commitments. Instance Attributes Instance attributes include the instance type, the scope, tenancy and platform. Instance type — The instance family, the generation and the size, such as m5.

Scope — Whether the RI can be applied flexibly within a region or if it applies to a specific AZ, such as us-west Tenancy — Whether the RI runs on default shared or dedicated hardware.