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What is Amazon Web Services?
Amazon Web Service is a Cloud Computing Service. Cloud Computing is being used a lot in today's time. In Amazon Web Services, you not only get Cloud Computing but more than 100 Computing Services related to Cloud Computing. Amazon Web Services is a Remote Computing Service that gives you Cloud Computing Service, also with Unlimited Bandwidth and Customer Support. Now use this Cloud Computing Service for your Website or Blog or for any Apps. Amazon in 2006 Web services started offering IT services in the market in the form of web services now a days known as cloud computing. With this cloud we do not need a plan for servers and other IT infrastructure which takes a lot of time in advance.
these services can spin hundreds or thousands of servers instantly in minutes and produce faster results. We only pay for what we do today, with no upfront expenses and long-term commitments. Amazon Web Services Cloud 190 provides a highly reliable, scalable, low-cost infrastructure platform in the cloud worldwide.
What is Cloud Computing?
Cloud computing is an Internet-based computing service in which large groups of remote servers are networked to allow centralized data storage and online access to computer services or resources. Organizations using cloud computing can use shared computing and storage resources rather than building, operating, and improving their own infrastructure.
Cloud computing is a model that enables the following features.
- Users can access and release resources on demand.
- Resources can be automatically scaled up or down depending on load.
- Resources are accessible on the network with proper security.
- Cloud service providers can enable the pay-as-you-go model where customers are charged based on the type of resources and per use.
Types of Clouds
Three types of clouds
- Public Cloud
- Private Cloud
- Hybrid Cloud
1. Public Cloud
Third-party service providers in the public cloud provide resources and services to their customers via the Internet. Customer data and related security is with infrastructure owned by service providers.
2. Private Cloud
A private cloud also provides almost the same features as a public cloud but data and services are managed by the organization or by third parties only for the customer's organization. In this type of cloud, the infrastructure has major control so security related issues are minimized.
3. Hybrid Cloud
Hybrid cloud is perhaps where everyone is in reality: a bit of this, a bit of that. Some data in the public cloud, some projects in private cloud, multiple vendors and different levels of cloud usage. Hybrid cloud include disaster recovery planning and the desire to avoid hardware costs when expanding their existing data centre.
• Infographic: Companies are turning to hybrid cloud to save money
• What does 'hybrid cloud' mean? It depends on whom you ask
• Managing the multi-cloud: It's complicated
Cloud Service Models
Three types of service models in the cloud
- IaaS Model
- PaaS Model
- SaaS Model
1. laaS Model
IaaS is positioned for Infrastructure as a Service. It provides users with the ability to provision processing, storage and network connectivity on demand. Using this services model, customers can develop their own applications on these resources.
2. PaaS Model
PaaS is positioned for the platform as a service. Here the service provider provides various services like database, queue, workflow engine, e-mail etc. to its customers. The customer can use these components to build their own applications. The availability of services, resources and data backup is controlled by the service provider which helps customers to focus more on the functionality of their application.
3. SaaS Model
SaaS is located as a service for software. As the name suggests, third-party providers here provide their customers with end-user applications with some administrative capabilities at the application level such as the ability to create and manage their users. Apart from this, some level of customizability is possible such as customers can use their corporate logo, colors etc.
Benefits of cloud computing
- Cost-Efficient
- Reliability
- Unlimited Storage
- Backup & Recovery
- Easy Access to Information
1. Cost-Efficient
Building our own servers and equipment is time-consuming as well as being expensive before we need to order, pay, install, and configure expensive hardware. However, when using cloud computing we only pay the amount we use and when we use computing resources. Cloud computing is cost efficient in this manner.
2. Reliablility
Cloud computing platform provides much more managed, reliable and consistent service than in-house IT infrastructure. It guarantees 24x7 and 365 days of service. If any of the servers fail, hosted applications and services can be easily transferred to any of the available servers.
3. Unlimited Storage
Cloud computing provides almost unlimited storage capacity i.e. we do not have to worry about running out of storage space or increasing the availability of our current storage space. We can use according to your requirement or at least.
4. Backup & Recovery
Storing data in the cloud is relatively easy compared to storing it on a physical device, backing it up and restoring it. Cloud service providers also have sufficient technology to retrieve our data so we have the facility to recover our data anytime
5. Easy Access to Information
Once you register yourself in the cloud, you can access your account from anywhere in the world, provided there is an internet connection at that point. There are various storage and security features that vary with the account type chosen.
Amazon Web Services Basic Architecture
This is the basic structure of Amazon Web Services EC2, where EC2 is the Elastic Compute Cloud. EC2 allows users to use virtual machines of various configurations according to their requirement. This allows different configuration options, mapping of individual servers, different pricing options, and more.
Security Management
Amazon's Elastic Compute Cloud (EC2) provides a feature called Security Group that is similar to an inbound network firewall in which we have to specify protocols, ports, and source IP ranges that allow access to your EC2 instances.
Each EC2 instance can be assigned to one or more security groups, each of which routes the appropriate traffic for each instance. Security groups can be configured using a specific subnet or IP address that limits access to EC2 instances.
Amazon RDS
The Amazon Relational Database Service provides similar access to MySQL, Oracle, or Microsoft SQL Server database engines. Similar queries, applications and tools can be used with Amazon RDS (Relational Database Service).
It automatically patches the database software and manages the backup as per the user's instructions. It also supports point-in-time recovery. No up-front investment is required, and we only pay for the resources we use.
Hosting RDMS on EC2 Instances
Amazon RDS allows users to set up a relational database management system of their choice on EC2 instance like MySQL, Oracle, SQL Server, DB2 etc. and can manage as required
Amazon EC2 uses Amazon elastic block storage similar to Network Attached Storage. All data and logs running on EC2 instances must be kept on the Amazon EBS volume which will be available even if the database host fails.
Amazon EBS volumes automatically provide redundancy within the availability zone thus increasing the availability of simpler disks. Also, if the volume is not sufficient for our database needs then the volume can be added to increase the performance of our database.
Amazon manages the Service Provider Storage using RDS and we only focus on the Manage Data.
Storage & Backups
Amazon Web Services Cloud Web Application provides various options for storage, access and backup of data and assets. Amazon Simple Storage Service provides a simple web service interface that can be used to store and retrieve data from anywhere on the web, anytime, anywhere.
Amazon Simple Storage Service resources are referred to as buckets. The user can store as many objects as needed within the Buckets and read, write and delete objects from the Buckets.
Amazon is effective for EBS data that needs to be accessed as block storage and requires persistence beyond the life of running instances such as database partitions and application logs.
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