Which Cloud Provider Is Best
Microsoft Azure. The best cloud services platform. Amazon Web Services. The most popular cloud computing service. Google Cloud. Googles powerful cloud computing alternative. IBM Cloud. Reasonably priced cloud services from one of the tech masters. Oracle Cloud Infrastructure. Another IT behemoth cloud service. CloudLinux.Mar 17, 2021
Azure High Availability Architecture
Like AWS, Azure also bases its high availability architecture on regions and availability zones. Azure always stores three copies of user data across three availability zones. This is called redundant local storage. Customers can opt for global redundant storage, to create up to three additional copies of their data in a paired region, a nearby region that has fast connectivity with the first region, for added flexibility.
Azure availability zones achieve high availability by distributing resources across multiple data centers in a customers region. Azure provides additional services like Azure Site Recovery and Azure Backup to achieve the required recovery point objective and recovery time objective for their applications.
Learn more in our in-depth guide to Azure high availability.
Types Of Cloud Computing
Cloud computing is providing developers and IT departments with the ability to focus on what matters most and avoid undifferentiated work like procurement, maintenance, and capacity planning. As cloud computing has grown in popularity, several different models and deployment strategies have emerged to help meet specific needs of different users. Each type of cloud service, and deployment method, provides you with different levels of control, flexibility, and management. Understanding the differences between Infrastructure as a Service, Platform as a Service, and Software as a Service, as well as what deployment strategies you can use, can help you decide what set of services is right for your needs.
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When To Use Iaas Or Paas
With a basic grasp of the benefits and differences of IaaS vs. PaaS, now you can consider which one is right for a given workload.
IaaS is typically the best option for companies that have the resources to develop, deploy and manage applications — without the provider’s help. IaaS is also preferable if a user requires components that aren’t provided by a PaaS offering, such as a specific development tool or a custom operating system.
The most common use case for IaaS is when an organization already has its app, or has the in-house resources to develop it, and simply needs infrastructure to host it. For example, a retailer that has built an online marketplace might turn to an IaaS provider to host that workload. Or, a company could chose an IaaS hosting product to migrate its on-premises payroll system to the cloud.
PaaS is a better option for organizations that have fewer resources to develop and manage applications. PaaS does not totally eliminate the need for developers, but it streamlines development and deployment operations and bundles them with hosting infrastructure. For that reason, PaaS can be more attractive to SMBs that want to get apps out the door quicker.
Running Mission Critical Applications In The Cloud
A mission-critical application relies on continuous availability and cannot undergo even a brief downtime. This can lead to financial, reputational, and operational damages to an entire business or a segment.
When provisioning a mission critical application, you need to ensure stability and availability at all times. You can achieve this by creating redundant copies of your application and hot backups. Additionally, you can duplicate your production and staging environments and test them.
Large enterprises typically use the following three types of mission critical applications:
- Backup and disaster recovery – strategies are critical to ensure business continuity. Your recovery strategy should provide a short recovery time objective and minimize the recovery point objective .
- Enterprise Resource Planning – systems manage business processes, providing capabilities to manage finances, manufacturing, distribution, the supply chain, human resources, and more. ERPs must remain operational at all times.
- VIrtual Desktop Infrastructure – solutions help you remotely deliver a desktop image to endpoint devices via an Internet network. VDI technology enables users to access mission critical applications on their smartphones, laptops, and other thin-client devices.
Learn more about running mission critical applications on the Microsoft Azure cloud in our detailed guides to:
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Design Patterns For Availability With Aws
The best way to ensure availability is to take advantage of existing AWS services and its resilient infrastructure. Certain trade-offs must occur when you design for resiliency because of cost and performance. As we get further into this guide, we explore more of the service-specific deployment patterns.
Here are some key tips for designing for availability for core services:
Think globally, act locally
Just like the earth-friendly phrase goes, you should utilize services with global availability but be mindful of where your customers and users access the environment. Make use of CDNs, caching, and cross-Region services where possible for the best consumer experience.
Use multiple AZs
They are called “Availability Zones” for a reason. Utilize more than one AZ within your Regions for safety. Designing your network strategy must include this or else you might bump into network addressing challenges as you try to expand later.
For broad availability, use services that can span Regions as well as the AZs within them. Treat a Region like you would a Metropolitan Area Network and build applications to be able to be run and recovered across Regions.
Back up your data and configuration
You must design your networking strategy in advance of these bursts and expansions. Early decisions about network addressing within and across your AZs and Regions can affect growth and expansion.
How Does Aws Price Its Services
AWS is the worlds leading cloud provider, offering 175 services across infrastructure as a service , platform as a service , and software as a service .
All Amazon services have on-demand pricing, which means you pay for your actual use of the service. In addition, Amazon provides discounts in the following cases:
- Discount for reserving services for periods of 1 or 3 years
- Discount for spare computing capacity by bidding on Amazons Spot Instance market
- Savings Plansa commitment to purchase a certain quantity of Amazon resources across your entire organization
Amazon also offers the Free Tier, which lets organizations use a wide variety of services, with certain limitations, for the first year since they joined Amazon. Even after the first year, Amazon provides an Always Free tier with a limited set of services.
This is part of an extensive series of guides about IaaS.
In this article, you will learn:
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How Does Infrastructure As A Service Work
IaaS works on the principle of virtualization. An IaaS platform lets you select the type and configuration of the infrastructure you require. The system then automatically creates digital versions of the underlying infrastructure. These virtualized computing resources mimic the behavior of physical resources. For you and your applications, everything works the same as it would on a physical device.
IaaS providers also offer additional services to support infrastructure management. For example, you can use the services to do these tasks:
- View system logs and monitor performance
- Implement consistent security measures across all your infrastructure
- Configure policies that automate common infrastructure tasks, like backup and load balancing
Is Aws Better Than Azure
AWS and Azure are the two top players in the cloud technology space because both are very good at what they provide in different ways. The Benefits of AWS Certification: Although Azure is rapidly gaining market share, AWS is still by far the largest cloud computing service provider in the world today.
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What Are Aws Products
- AWS is made up of so many different cloud computing products and services. The highly profitable Amazon division provides servers, storage, networking, remote computing, email, mobile development and security. AWS can be broken into two main products: EC2, Amazons virtual machine service and S3, Amazons storage system.
Pricing For Amazon Ec2
When you sign up for AWS, you can get started with Amazon EC2 for free usingthe AWS Free Tier.
Amazon EC2 provides the following purchasing options for instances:
- On-Demand Instances
Pay for the instances that you use by the second, with a minimum of 60 seconds, with nolong-term commitments or upfront payments.
- Savings Plans
You can reduce your Amazon EC2 costs by making a commitment to a consistent amount of usage, in USD per hour, for a term of 1 or 3 years.
- Reserved Instances
You can reduce your Amazon EC2 costs by making a commitment to a specific instanceconfiguration, including instance type and Region, for a term of 1 or 3 years.
- Spot Instances
Request unused EC2 instances, which can reduce your Amazon EC2 costs significantly.
For a complete list of charges and prices for Amazon EC2, see .
When calculating the cost of a provisioned environment, remember to include incidental costssuch as snapshot storage for EBS volumes. To calculate the costof a sample provisioned environment, see Cloud Economics Center.
To see your bill, go to the Billing and Cost Management Dashboardin the AWS Billing and Cost Management console. Your bill contains links to usage reports that provide details about your bill. To learn more about AWS account billing, see AWS Billing and Cost Management User Guide.
If you have questions concerning AWS billing, accounts, and events, contact AWS Support.
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Example: Deploying The Umrk Web Servers
The UMRK team needs two web servers, each deployed into a separate Availability Zone within the same Region. Your task also gives you a chance to launch an EC2 instance running Amazon Linux. The is a lightweight, secure, and versatile Linux derivative built and maintained by the AWS team, and it has many operational similarities to CentOS.
You start in the AWS EC2 console by launching a new instance through the wizard, as depicted in Figure 3-1, which takes you through the steps.
Figure 3-1. Start the EC2 wizard by choosing an image
There are a few details to choose from in the third step of the wizard, which include those highlighted via arrows in Figure 3-2. You must choose to assign a network that is associated to your Virtual Private Cloud to prevent ending up in the default VPC. Your subnet will be chosen from the ones you created in Chapter 2. This example for UMRK disables the public IP in favor of using an Elastic IP .
Figure 3-2. Choose the instance details
IAM roles allow for service-to-service and more granular administrative access to resources. We are not covering IAM roles in this guide, so for this example, we are not using an IAM role.
It’s a good idea to select the “Protect against accidental termination” checkbox to reduce the risk of accidentally terminating and losing your instance. You can disable termination protection later in the EC2 instance details.
Figure 3-3. Assigning a 20 GB root volume
Figure 3-4. Assigning your EC2 instance tags
What Is Saas Paas And Iaas With Examples
What do the following terms mean?
There are various cloud services available today, such as Amazon’s EC2 and AWS, Apache Hadoop, Microsoft Azure and many others. Which category does each belong to and why?
- 1All of these are type of cloud service models. Question which of these is popular is irrelevant as it is governed by your business model. For differences refer – Difference between SaaS, PaaS and IaaS explainedJan 24, 2015 at 8:37
- Enhance your knowledge on Cloud models and Cloud computing on hit portal: solutionsbased.in/models-of-cloud-service
IaaS, PaaS and SaaS are cloud computing service models.
Few additional points regarding your question:
AWS is a complete suite which involves a whole bunch of useful web services. Most popular are EC2 and S3 and they belong to IaaS service model.
Although Hadoop is based on previous works by Google, it is not from Google. It is an Apache project. You can find more here. It is just a distributed computing platform and does not fall into any of these service models, IMHO.
Microsoft’s Windows Azure is again an example of IaaS.
Deals with Virtual Machines, Storage , Servers, Network, Load Balancers etc
A layer on top of IAAS
Runtimes , Databases , Web Servers
A layer on top on PAAS
Applications like email , Social Networking sites
To quickly relate consider the below Google’s offerings:
IAAS :Google Compute Engine
PAAS :Google App Engine
SAAS :Gmail, Google+ etc
Cloud computing is dominated by
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How To Get Started With Amazon Ec2
First, you need to get set up to use Amazon EC2. After you are set up, you are ready to completethe Get Started tutorial for Amazon EC2. Whenever you need more information about an Amazon EC2feature, you can read the technical documentation.
Get up and running
To automatically distribute incoming application traffic across multiple instances,use Elastic Load Balancing. For more information, see the Elastic Load Balancing User Guide.
To get a managed relational database in the cloud, use Amazon Relational Database Service to launch adatabase instance. Although you can set up a database on an EC2 instance, Amazon RDS offersthe advantage of handling your database management tasks, such as patching the software,backing up, and storing the backups. For more information, see the .
To make it easier to manage Docker containers on a cluster of EC2 instances, use Amazon Elastic Container Service. For more information, see the or the .
To monitor basic statistics for your instances and Amazon EBS volumes, use Amazon CloudWatch. For moreinformation, see the .
To detect potentially unauthorized or malicious use of your EC2 instances, use Amazon GuardDuty.For more information see the .
What Is The Difference Between Iaas And Paas
Infrastructure as a Service refers to cloud services hardware components, like virtual machines and scalable storage. PaaS also includes an ecosystem for deploying your applications.
Theyre both examples of cloud computing services, of course, but with different use cases and target markets.
To make things even more confusing, many PaaS providers also offer IaaS solutions and vice versa.
Lets clear up the confusion by comparing specific products.
For example, using an AWS EC2 instance to store data for your web app means youre only taking advantage of fundamental cloud infrastructure. So, in this case, youre only using an IaaS service.
If you use AWS Elastic Beanstalk to deploy a web application instead, youd be using a PaaS service. The Elastic Beanstalk implementation uses AWS infrastructure like S3, EC2, and DynamoDB, but combines them into an instantly usable platform for development.
Thats the difference.
A PaaS is a packaged solution ready to help you develop and deploy your app, while an IaaS is just the bare-bones cloud infrastructure.
Its similar to the difference between an unmanaged web hosting service and a managed WordPress hosting platform .
In some cases, vendors like AWS, Google, and Microsoft will only charge you for resource usage and nothing for using the software platform.
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Deployment Example: Web Application
For this example, your customer is the Utility Muffin Research
Kitchen company, which needs a basic website to display its supply catalog at The company will use this website to run its custom web application code that is built for a web server that is certified on Amazon Linux.
UMRK uses an on-premises local balancer to route traffic to the web servers and will be using two web servers in AWS to distribute the load. It will want to keep all information together in a geographic region while ensuring availability by spreading the servers across two AZs, as shown in Figure 2-5.
The UMRK operations team needs HTTP and SSH access to each instance to be able to display the website and to manage the web server configuration and code. UMRK is located in Blue Ash, Ohio, with their primary distributors in Cincinnati, so they will choose to deploy into the US Region .
Figure 2-5. UMRK’s architecture diagram
Deploying the UMRK VPC
Let’s walk through the setup process here for configuring the UMRK VPC based on the requirements that we just defined:
- VPC will be in us-east-2
- SSH key must be uploaded in advance
- Two IPv4 public subnets will be used for resiliency
To begin, go to the VPC service in your AWS web console, which brings you to the default page and features a prominent Launch VPC Wizard button similar to that shown in Figure 2-6. Click the button to get started with your new VPC.
Figure 2-6. Launch the Create VPC Wizard
A Advantages Of Using Cloud Services
It is cheaper compared to on-premise. Building and operating your own systems and services by building your own servers on-premise is quite expensive. However, by using cloud services, you can keep these costs down. By using only as many resources as you need, you don’t have to spend money on things you don’t need.
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Google Cloud Sql High Availability Architecture
In Google Cloud, resources that operate in one zone are called zonal resources. Other resources operate across an entire region and are called regional resources. For example, a Google Cloud virtual machine instance or persistent disk is a zonal resource, while a static IP address is a regional resource.
Google adds the concept of clustersclusters are groups of physical computers inside a physical data center, with independent power, cooling, networking, and security infrastructure. This allows Google Compute Engine to balance customer resources across clusters in the same zone, while retaining high connectivity between the physical machines in each cluster.
Learn more in our in-depth guide to .