Let’s Dig Down in AWS…!!

EC2 by AWS

As we know that there are many services which are offered by AWS , lets pick few and try to understand their usage and utility it has for us:

AWS EC 2 (Virtual Servers on Cloud)

  • EC2 stands for Elastic Compute Cloud
  • It is one of the most famous offerings by AWS
  • It is a IaaS platform
  • It is basically renting of VMs
  • Storing data on Virtual Drives (EBS , ELB) and Distributing load across machines
  • Scaling of service using an auto-scaling group (ASG)

There are wide variety of Amazon EC2 Instance types comprise varying combinations of CPU, memory, storage, and networking capacity that gives you the flexibility to choose the appropriate mix of resources for your applications.

Each instance type includes one or more instance sizes, allow you to scale your resources either up or down and in or out to the requirements of your target workload.

Types of EC2 Instance Types

  • General Purpose
  • Memory Optimized
  • Compute Optimized
  • Accelerated Computing
  • Storage Optimized
InstancevCPU*CPU Credits / hourMem (GiB) StorageNetwork Performance
t2.nano130.5EBS-OnlyLow
t2.micro161EBS-OnlyLow to Moderate
t2.small1122EBS-OnlyLow to Moderate
t2.medium2244EBS-OnlyLow to Moderate
t2.large2368EBS-OnlyLow to Moderate
t2.xlarge45416EBS-OnlyModerate
t2.2xlarge88132EBS-OnlyModerate

T2 instances – General Purpose Instance

Source: AWS Website , for more information, click here

EC2 Purchase Options

  • On-Demand Instance
  • Reserved Instance, Convertible Instance and Scheduled Reserve Instance
  • Spot Instance
  • Dedicated Hosts and Dedicated Instance

For more information on these, contact the undersigned

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What do you mean by Virtualization & Hypervisor?

Virtualization

Virtualization refers to the creation of a virtual resources such as a server, desktop, operating system, file, storage or network.

A simple definition of virtualization is the formation of virtual computer inside the real computer.

Advantages

  • Reduces IT expenses
  • Increases Efficiency
  • Increases Agility

Ways of creating virtualization

  • Full virtualization,
  • Para-virtualization 
  • OS-level virtualization.

Types of Virtualization

1.Server Virtualization
2.Application Virtualization
3.Network Virtualization
4.Desktop Virtualization
5.Storage Virtualization

Server Virtualization

Server virtualization allows multiple servers to be installed on one or more existing servers. This saves floor space and money since you don’t have to purchase new servers or expand the square footage of your server room which may increase your overall expenses.

Application Virtualization

This is a process where applications get virtualized and are delivered from a sever to the end user’s device, such as laptops, smartphones, and tablets. So instead of logging into their computers at work, users will be able to gain access to the application virtually from anywhere, provided that an Internet connection should be available.

Network Virtualization

Network virtualization is a method of combining available resources in a network by splitting up the available bandwidth into channels, each of which is independent from the others, and each of which can be assigned (or reassigned) to a particular server or device in real time. Each channel is independently secured.

Desktop Virtualization

Desktop virtualization removes the need for a CPU at each computer station. Each user will still have a monitor and mouse, but will have their desktop CPU virtually stored on a local server.

Storage Virtualization

Storage virtualization is the process of grouping the physical storage from multiple network storage devices so that it looks like a single storage device. This concept is basically used in Storage Area Network (SAN) environment.

Hypervisor

A Hypervisor or Virtual Machine Monitor(VMM) is computer software, firmware or hardware that creates and runs virtual machines. A computer on which a hypervisor runs one or more virtual machines is called a host machine, and each virtual machine is called guest machine. 

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