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AWS Cost Optimization Guide: Cut Your Cloud Bill by 50%

Cut your cloud bill in half with our AWS Cost Optimization Guide. Learn how to rightsize compute, use spot instances, and master FinOps today.

Gourab Sarkar1 Jul 202610 min read
Cloud & AWS

AWS Cost Optimization Guide: Cut Your Cloud Bill by 50%

Hello readers! Amazon Web Services (AWS) is the leading cloud computing platform in the world. It includes hundreds of different services, including storage, networking, PaaS, managed databases, and container management. AWS Cost optimization requires the analysis of how you utilize services, identifying ways to save money, and executing suggested measures. In this regard, you must check out the AWS Cost Optimization Guide to reduce the cost significantly. 

Most Amazon services are dependent on the computing power offered by EC2. Hence, the costing of EC2 instances is one of the most important elements of your AWS expenses. A lot of cost optimization measures a reduction of the cost of EC2 instances; done through moving instances from on-demand to spot instances or reserved instances, or implementing savings plans.

Why Makes AWS So Expensive?

AWS cloud services offer more than 300 different services. The usage of cloud services is dynamic, and the costs are hard to calculate and predict. Some common reasons for such high costs are:

Pay-As-You-Go Can Turn Into Pay-For-What-You-Forgot

The resources that companies utilize for testing or other purposes are regularly not taken off their clouds. Empty instances, idle volume storage, and other forgotten items continue to bill monthly.

Rapid Growth Brings About Complexity

With growth comes increased complexity. Companies end up not knowing where their money goes.

Pricing Complexity

Amazon Web Services offers services, each with its own pricing model. EC2, alone, features on-demand, reserved, savings plans, spot, and dedicated host pricing across hundreds of instance types.

Visibility is Not an Option

AWS provides you with Cost Explorer for free, yet most companies fail to set it up correctly. Without tags and proper account management, you cannot answer the question of ‘which team spent what.’

Over-Provisioned Resources

Instance sizes are chosen based on estimated peak load and then are never revisited. Consequently, 40-60% of available computing power remains idle.

Idle Resources Accumulate 

That test environment you had in the previous quarter, those unallocated EBS volumes of instances that no one terminated. Those Elastic IPs that no one reserved – they are all eating away at your budget hourly.

No Commitment Strategy

On-demand rates for workloads running 24/7 without any changes for months.

5 AWS Cost Optimization Pillars

Below are the top five pillars that will help you optimize costs across most environments:

  1. Proper Sizing

Make sure that your provisioning matches your needs. In terms of computing, your CPU, storage, network throughput, and memory must be properly sized.

  1. Increased Elasticity

IT hardware is never switched off. With the cloud model, you can optimize costs depending on demand by switching off the resources when you do not need them.

  1. Use the Right-Pricing Model

AWS offers you various pricing models, including on-demand pricing, Spot Instances, and Reserved Instances. Your pricing model should optimize the costs depending on the requirements of your workload. 

  1. Storage Optimization

AWS offers many storage options, offering varying performance at varying costs. You can optimize the storage and get the required performance and availability by finding the right storage type for specific data. 

For example, Amazon EBS Throughput Optimized HDD (st1) is cheaper than General Purpose SSD (gp2).

  1. Measure, Monitor, Optimize

Cloud is dynamic in nature. You need to have measures in place and monitor for accurate visibility and constant cost optimization. Do this through cost allocation tagging. 

It is necessary to define the metrics, define the target, and analyze the data systematically. Training, visualization, incentives, and delegation of responsibilities among people involved in optimization processes will assist your teams in architecting for cost.

Choosing the Best AWS Pricing Model to Cut Costs

1. On-Demand Pricing

The default AWS pricing plan makes you pay for only what you use with no commitment at all. Although very flexible, it is usually the most costly one.

  • It fits well with companies that require Operating Expenses (OpEx) with zero up-front investment.

  • It is well-suited for critical mission workloads or loads that have an unexpected traffic spike.

2. Savings Plans

Through using AWS Savings Plans, you can minimize compute costs by 72% on Amazon EC2, AWS Lambda, and AWS Fargate. You get flexibility at affordable prices.

  • Perfect for companies in search of discounts without loss of flexibility.

  • Good for highly flexible applications designed to operate for a long duration of time.

3. Reserved Instances

With Reserved Instances, there is a discount of up to 75% when you agree to commit to using your Amazon EC2 instances for 1-3 years ahead of time.

  • It is best for companies running stable or legacy enterprise workloads.

  • It is ideal for applications having predictable workloads.

4. Spot Instances

Discounts of up to 90% are available through Spot Instances from the unused Amazon EC2 capacity. But these can be interrupted by AWS when capacity needs arise elsewhere or if spot prices go beyond your bids.

  • Good for companies having a cloud-first, highly automated environment.

  • Good for stateless or non-critical workloads like batch processing, testing, and analysis.

Cost Optimization Tools for AWS 

There are numerous tools available to carry out cost optimization. You should be conversant with these tools to maximize from them.

AWS Billing & Cost Management Console

The AWS Billing Console helps you manage your spending, monitor costs, and create and manage resource tags. The console enables you to manage billing and costs for more than one AWS account.

AWS Cost Explorer

AWS Cost Explorer helps analyze the spending on AWS, usage, and forecasts. AWS Cost Explorer gives you 13 months of data history, customizable views, and recommendations to reduce costs.

AWS Budgets

With AWS Budgets, you can set spending limits and configure budget alerts that will help you track your costs when reaching the budget threshold.

Set budgets for service-specific spending, usage-based, or total spending. Get alerts via email or Amazon SNS.

AWS Trusted Advisor

Trusted Advisor automatically identifies cost optimization opportunities, like:

  • EC2 underutilization

  • Load balancer idling

  • EBS volume idling

  • Idling Elastic IP association

  • RDS instance idling

  • Redshift cluster underutilization

Amazon CloudWatch

Amazon CloudWatch monitors AWS resources based on metrics and generates alerts based on the metrics.

Set alarms for low resource utilization. Find the underutilized resources, and resize them accordingly to lower the cost.

AWS Cost Optimization Checklist: Things You Need to Consider

Control Expenses

  • Formulate budgets for the management and control of AWS costs.

  • Analyze the expense and usage reports so that you are aware of the issues affecting the cost.

  • Make good use of AWS Trusted Advisor to find out anything unnecessary or unproductive.

Optimize Your Instance of Compute

  • Properly configure the right type of instance for your application.

  • It would be better if you go for reserved instances when you have predictable workloads.

  • Leverage the new instances to get affordable services.

  • Leverage reserved instances and On-Demand Instances based on workload.

  • Leverage the spot instances when you have varying workloads.

  • Schedule instances whenever you use them for a particular period.

Best Practices for Cost Optimization

Find Underutilized EC2 Instances

Underutilized EC2 instances can be identified through AWS Cost Explorer’s Resource Optimization report. Savings can be made by stopping, scaling down, or scheduling these through the AWS Instance Scheduler.

Alternatively, you can get recommendations for improving your instance type and Auto Scaling configuration from AWS Compute Optimizer.

Sell or Utilize Unused Reserved Instances

Reserved Instances save you money only when actively used. Reallocate unused reserved instances to another workload or swap On-Demand instances with them. If they still go unused, try selling them on the Reserved Instance Marketplace.

Amazon EC2 Spot Instances

You can reduce EC2 costs up to 90% with Spot Instances. Use Spot Fleet to optimize cost savings while keeping important workloads up and running.

Common Mistakes You Must Avoid

Commitments Too Early

Do not commit to Savings Plans or RIs until after you have been running for at least 2-3 months. Early commitments tie you down to resources that you do not actually need.

Forget Data Transfer Fees

Compute and storage are optimized while ignoring $0.09/GB egress fees that become a top-5 fee item stealthily.

Over-commitment with Reserved Instances

RIs for instances that will be replaced, resized, or retired during the term of commitment are an absolute waste of money. Whenever in doubt, use Savings Plans.

Test/Dev Environments Forgotten

The production environment is optimized while dev and test environments are running the same size of instances all the time. Stop dev environments outside business hours – this alone gives you 65% reduction.

Late Tagging

Tagging retroactively is hard and inefficient. Make sure tagging is implemented as part of your infrastructure-as-code templates from the beginning.

Not Considering Spot as Reliable 

Spot interruptions are rare for a diversified set of instance types. Teams that think otherwise miss 60-90% of savings opportunities.

Why Should You Partner with IEMA Cloud?

Many firms and businesses do not have the required internal resources and infrastructure to optimize cloud infrastructure. 

IEMA Cloud makes sure that you simplify your cloud operations as you minimize costs and enhance the efficiency of your cloud environment by providing practical assistance in assessing your infrastructure, supporting migrations, optimizing costs, and managing your cloud operations according to your objectives.

If you want to ensure the best use of AWS services, then IEMA Cloud is the right option to choose.

Conclusion

Cloud computing gives great freedom to businesses when they need innovations, but uncontrolled costs make it difficult to enjoy these innovations. It is common for companies to spend their budgets on oversized instances, unnecessary costs, ineffective storage management, and poor governance.

By using this AWS Cost Optimization Guide, you can minimize your monthly costs by detecting waste, enhancing resource utilization, and increasing the efficiency of your AWS environment.

Rightsizing, automation, optimization of storage, effective use of pricing models, and monitoring will provide you with substantial savings.

If you are interested in having a highly efficient cloud environment, then IEMA Cloud is the right choice for you.

FAQs (Frequently Asked Questions)

Q1. Is an AWS cost optimization guide essential?

Yes.

Q2. How much cost reduction can you make through optimization?

You can save upto 20%-40% of your total AWS costs at present.

Q3. Are Reserved Instances better than On-Demand pricing?

Yes, if your workload is predictable, then you will definitely save money.

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