SESSION 1

Yellow_Brick_Cinema_Complimentary_Meditation_Track.mp3

In the Cloud Computing world client is not right term to use sometimes you use the term user but right term to use is TENANT

Cloud Computing is all about virtual everything whatever you do in the cloud is virtual.

If you want to run the program we need Ram and CPU both the things , in the combination of two guys is called compute unit.

If you want to run your program what you need , compute unit means Ram and CPU now you have a choice in today's world . Either you go to the market purchase own your Ram and CPU or other choices what can you do , rather than you purchase the Ram and CPU you just hire on rent from where , from the cloud computing companies. like AWS , AZURE etc.

So you go to the cloud computing and say Cloud Computing do you have any service again known as AAS (AS-A-SERVICE) that provide me the compute unit (Ram and CPU) so they say yes I have and that service guys typically known as CAAS (compute-as-a-service)

In the name of the service that provide your Ram and CPU that give you a compute service are known as EC2 . so ec2 is one of the service of aws.

Elastic compute cloud it means from the cloud compute our program , they give you run and CPU is called EC2

Nova is one service in openstack (private cloud) that provide you compute service it means that give you RAM and CPU.

If you would like to store your data permanent we need to storage device storage unit again to choice either go to the market and buy it (pay upfront) or again you go to the rent.

Three different kind of storage available in the market 1. object 2 . file 3 . block (Pendrive)

Cloud Computing say I am Cloud Computing I am also giving you AAS (as-a-service) this as a service known as storage as a service (STAAS) or i say block STAAS.

it means I am going to cloud computing and say can you give me the Hard disk can you provide me the pendrive so I can keep my data . so they say I do have block storage as a service.

In aws service name for block storage service is EBS.

and in openstack service name for block storage as a service is CINDER.

Elastic block storage is one service through which we can get the pen drive or hard dicks on the cloud.

They itself create one NAAS (Network-as-a-service) to you the service they use behind the scene to create the NAAS is called VPC (Virtual private cloud).

Why you create VPC.

It is the way to create a building in the cloud computing world

In aws the service name who gave NAAS is called VPC and in the openstack world the program and service who give the NAAS is called NEUTRON.

Due to any physical disaster happened if one of the complete physical data center goes down so I can ensure my client i have one more data center running on the Mumbai your service , your website, or your application keep on running this called fault tolerance (Fault tolerance is the property that enables a system to continue operating properly in the event of the failure of (or one or more faults within) some of its components. ) kind of set-up.

In the Cloud Computing world os is also known as instance.

whenever you're going to launch any operating system you have to tell which lab/subset you have to use it is compulsory to tell the lab name.

If you want to network card , Amazon has one more service that services provide network card to you name is ENI (Elastic network interface) using this service on the cloud you can get network card.

In aws they provide you almost all the os image and that is there used the term AMI (Amazon machine image).

in the openstack where we keep our image that service is known as GLANCE

In 2017 around Amazon change their some balling model initially they charging per hour basis ex- you use 40 min or 10 min they considered 1 hours . NOW they charge per min basis . BUT one note point here is this balling model change for only Linux operating system.