On(Images-AMI’s)

• This is your image correct
• this is image you are created
• now you’ll use this image to launch the machine
• you can use this image to launch a new machine if you want to launch a new machine
• in same region
• right now you are in north Virginia
• if you want to launch a similar kind of machine
• what is the use of making duplicate machine in the same region
• may be you are interested in a load balancer
• for these machines, you need more than one similar kind of machine by the way
• im telling you how you can create machine using the AMI
• you select the AMI
• go to actions
• here you can see launch
• launch option
• click on launch option
• so while you click on launch option
• the first option has been chosen
• so your AMI
• you are already selected the AMI
• to launch  this instance
• but the AMI was ok
• but this machine
• would require
• actually instance type
• so im taking the instance type t2.micro
• ofcourse free of cost
• next is where exactly you want to place your machine
• like youll select network
• subnet
• im selecting this time US-east-1b
• this is an availability zone
• US-east-1b
• and this is the sub-net
• right
• ill tell you about subnets
• in detail later on in VPC topic
• so and this is the public IP address your machine has
• now add a storage
• 10 gb storage earlier you gave
• 10 gb storage while you made this AMI
• so if you want to make some changes
• in it you can do it
• or let it be as it is
• if it is ok
• upto 30 gb offcourse it is free of cost available under free tier
• im ok with 10 gb
• next is you need to give some tag to this machine
• lets say let me take machine name lets say VMI
• so this is linux machine
• and this is your security group
• and this time you do not want to create an security group
• once again
• if you have an existing security group
• you can take an existing security group
• and finally you can launch the instance
• and this was the key name i created for my earlier(saicharanpaloju6april)
• ec2 instance the same key pair can be used with
• multiple ec2 instances
• so key pair is basically is kind an authentication
• can be used for ec2 instance
• instead of password
• we are using key pair
• ok
• now
• this is done
• you created one more machine here
• so how you learn that
• you can create AMI from running machine
• and if you have AMI
• you can use that AMI
• to create new virtual machine
• or new ec2 instance
• is it clear everyone
• yes or no
• good
• now you have two machines
• two similar machines
• correcet
• now i want to share
• i want to share
• this AMI among you people
• i dont know how many people are connected with me
• almost 25 people are connected with me
• right now
• im very slow right in this training
• because
• this is very fundamental and its very significiant to understand
• that’s why I’m not rushing and I’m not in hurry
• so you go to to AMI’s first of all
• this is the AMI you have right
• and this AMI right now is in
• which particular region
• so we are in north Virginia
• and i want to copy this AMI in some another region
• so why we are copying this image to another region
• anybody
• the only one reason behind this copy is means may be
• you want to create a similar kind of a instance
• in another region
• you want to create a similar kind of instance in another region
• then definitely this AMI is required
• but from here
• because right now we are in north Virginia
• and you want to create machine in Ohio region
• definitely first of all you have to copy this AMI
• to Ohio region
• then only you can use this AMI
• to create a new machine in Ohio
• so the ultimate purpose
• i need to create a new machine
• in a different region
• using the same AMI
• so how i can copy this AMI from one region t another region
• you’ll select AMI
• and you go to actions
• you go to actions
• in actions we have one option copy AMI
• you’ll select this copy AMI
• in this you’ll select region
• so right now im in North Virginia
• im interested in copying to ohio
• i selected ohio
• and if you want to copy the same name
• its ok
• if you want to change the name
• you can change the name
• this is the description of the source right
• and if you want to encrypt
• the target EBS snapshot
• right now it is very new
• concept for you
• so please leave it as it is
• im not discussing right now
• once the snapshot is not covered
• its difficult to understand
• the encyption can be applied here
• you know what is the encryption
• because if it is not encrypted anybody can read the volume who is using the platform
• with you
• and if you need to encrypt it you must used some encryption keys
• you must have some key management system
• to encrypt your EBS volume
• or the snapshot you have
• right now im using copy AMI
• if you click on copy AMI
• and you done it
• so what happened
• it means the that particular task that particular command you initiated
• so what is the ultimate result of this
• it means that you are copying
• this image
• from north Virginia to Ohio region
• and in order to confirm the copy is been here
• or it is been copied
• what you’ll do
• you’ll change the region first of all
• in order to change the region
• you go to the region
• on top this balck strip
• right now you are in n Virginia
• open it and select your target region
• and my target second region is ohio
• click on ohio
• and you’ll see the region is changed
• right now you are in ohio
• and you are watching this is being copied
• so your image is being copied here
• is in it
• it is been copied or not
• right
• and what youll do
• once the copy is done
• once the copy is completed
• you’ll use this AMI
• to launch a new ec2 instance
• in ohio region
• right
• correct or not
• res fast way to do it
• we have no way to fast way to do it
• because the thing
• this is the good thing
• because you are able to
• copy to one region to another region
• because revery region is a seperate geo location
• you are working in n.virginia
• it means in north virginia
• you had some different set of data centers
• so waht you are doing
• you are uding aws global infrastructure
• and you are copying your image from one center
• to another regions data center
• offcourse those things are not rxposed here
• they are not sharing what data centers you are using
• but offcourse the one thing is there
• you are copying your one image from one region to another region
• and offcourse you are using
• different sets of data centers
• so if you refresh it
• youll see
• it is still loading
• it will 4 to 5 minutes
• because you are transferring you are copying
• the image 10gb image or 8gb image
• from one region to another region
• and offcourse you are working on aws free tier account
• and under aws free tier account
• you have some some quota
• you have some limitation
• of course
• this account is free
• for next 365 days
• or entire one year
• but with some limitations
• of course to this
• experience some hands on
• any one any question please
• during the time
• every individual machine on every individual machine
• you can go up to 30 gb EBS volume size
• every
• right
• that’s all
• so 8 gb is the maximum volume
• what exactly is the volume
• it should not more than 3,4 gb
• this is done
• i mean ohio region
• and what ill do
• this is the copied AMI you have
• and im gonna launch an instance here
• in my ohio region
• using this AMI
• let me check its working fine or not
• so of course
• ill take t2.micro
• instance type
• which is free
• second ill take the default
• network setting
• and storage should be 10 gb
• as per AMI
• i dont why my AMI platform to day
• is responding little slow
• 10gb is ok for me
• and you can just create a name
• let me write VM2
• this is in ohio
• here we have no pre defined
• or pre created security group
• we can create a new security group for your ec2 instance
• since security group is an external firewall
• for your ec2 instance
• and which basically allows and filters in coming and outgoing traffic
• so we have two different
• basically the part of security group
• in bound & as well as out bond
• so by default this is ok
• im adding http
• port number for 80 and i need to provide access from anywhere
• so these two rules im adding here
• and if you want to give name to security group
• you can write
• SG 001
• so its upto you
• whatever the name you want to give
• right
• review and launch
• and finally you click on launch
• and we do not have any existing key
• so its better to create a new key
• and lets say im writing
• ohio key 07 april
• and you download the key pair
• once you download the key pair
• once it is done
• right i think it is done
• let me ya it is done
• so once it is done
• if a key is already existing
• not an issue
• and you launch
• the instance
• you launch the instance
• and you review the instance here
• so this instance take definetly few minutes to start
• and this is the public IP Address
• of this instance
• first instance is ready
• you can take its public ip address
• and just see in browser
• how it is responding
• so i think the concept is clear
• what is an AMI
• how you can copy AMI
• from one region to another region
• and our final topic
• on final topic
• on final actually the task
• according to this lab
• is now remaining

How You Share This AMI

• with number of aws accounts
• and in order to share
• now this is working
• this is fine
• so im ensuring
• im just testing whether im talking properly or not
• im using its public IP Address
• and that is fine
• this is great
• my machine is fine
• my machine is working
• great
• so im switching back to if you dont need this machine
• you can terminate the machine
• right
• unnecessary you should not consume your resources
• and if you dont need that AMI
• you can delete even the AMI
• also because AMI
• is some how connected with your storage
• so you deregister it
• as you click on deregister
• to remove AMI from this ohio region
• and im coming back to
• n.virginia
• im coming back to n.virginia
• im coming back to n.virginia
• we have 2 AMI’s with us
• if we want to deregister one AMI
• go and deregister
• your old AMI
• now we have only one
• latest “saicharanpalojuwebserver”
• AMI with us
• in North Virginia
• and we have two machines with us
• if you want to delete one machine
• at unnecessarly, so let me delete or terminate
• VMI
• just go there and terminate the machine
• great
• now
• this is ok
• this will just control your running
• resources
• you should not
• consume too much unnecessarily
• now
• this is the image you have
• and you want to share this
• image among you people
• is it, you want to see you want use this image
• if you want to use this image
• and you want to see this image
• in your account
• so what you’ll do first of all you have to share
• your account id
• like this this is the account id i have
• i have
• so you have to share the account id
• and where you’ll see or you’ll copy account id
• you go to the account name if your aws
• this is the account name
• my account name is saicharanpaloju
• youll open it
• and this is the 12 digit account number you have
• you copy the number and you paste on the chat
• once you have the list of this
• in that case i can just share
• you please see the procedure
• how I’m sharing this AMI
• among you people
• what you’ll do
• first of all select the AMI
• first of all select the AMI
• and be low we have 3 tabs
• one is details
• which is telling you about the information of your AMI
• or you can say your meta data of your AMI
• second is permissions
• go to permissions by default your AMI is private
• by default
• what you are doing
• you are not making it public
• if you are making it public
• so these is no need to take your account id’s
• so i want to share
• this AMI
• among only limited number of people
• right
• say my team members
• so ill take their account id’s
• and i’ll share
• with them
• so you please provide me
• that if you want to see
• the same AMI in your account
• so but one more thing
• in order to see
• this AMI in your account
• you should be in the same region
• right now im in N.Virginia region
• you should be in a same region
• correct
• so a person abinav kondelwal
• he provided me the account id
• so here in the permission
• we have edit button
• click here
• and ill share this 12 digit
• ill copy and paste
• 12 digit account number
• of abinav yes and
• ill add permission
• so this has been added
• anybody else
• these is no harm
• if you want to communicate with anybody
• definetly youll use his telephone number
• in a same way
• in a same way
• in a same way
• what youll do
• youll take an account id two people
• so only the two people will enjoy this share
• correct
• ok good
• so what im doing finally
• im saving
• and you refresh the screen
• these are the two account numbers
• i have
• im sharing this AMI
• so these guys
• how you can access this AMI
• in your account
• there again is small step
• so once i share among you
• what youll do, youll go to your account
• youll go to your instances
• and you just click on launch instances
• youll be landed on the first step of this AMI
• and now, aws
• go to my AMI
• right, youll go to my AMI
• and once you click on my AMI
• even though you cannot see
• but you should be in n.virginia
• i told you earlier, right
• ok and
• now in oder to see
• ok
• and now in order to see
• this AMI in your account, under ownership
• there is an option “shared with me”
• you can see, great
• i need to add few more people
• just im click on this AMI
• ill go to edit
• and ill just paste one more ID here
• ok and ill save it and ill refresh it
• now you can see three numbers and
• the procedure you know
• you go to launch, go to the first step
• and just click on this my AMI
• under my AMI
• we have an ownership
• in ownership, you need to just
• check this “shared with me”
• this is the box
• and you can find this AMI in your account
• correct
• very good
• can you see
• ok, you should be in north virginia
• right, you should be in a same region
• then only youll be able to see
• so this way you can share
• your newly created AMI
• right
• this is a good thing
• and if you want to make it public what youll do
• if you want to make this AMI public
• youll go back
• youll go back to the AMI
• this is the AMI
• you just click on edit
• we have two options in the beginning here
• one is public and another is private
• earlier
• so im just removing all thse account numbers here
• and i want to make it public
• as you click on public
• and save
• now this AMI, anybody can see
• this AMI
• but this change will take 10 to 15 minutes
• you can see this change
• you can see this AMI
• publicly
• after 10 to 15 minutes
• right
• but you must have this AMI id
• if you want to search by AMI
• now this AMI is public
• so what youll do
• youll copy this AMI id number
• and im sharing this AMI id here
• so even this AMI id to search this AMI
• but after 10 or 15 minutes time
• correct
• you please let me know the this is clear or not
• yes or no
• ok so you did learn about all these facts about AMI

LAB

• launch instance <- region: NV
• configure instance
• create a new AMI in the same region:NV
• creating a new instance using the AMI
• copy the image in a new(another) region

• sharing the AMI with another AWS a/c holders
• now you can launch an instance using AMI
• you can create an AMI
• you can copy AMI from one region to another region
• and you can share that AMI
• to other regions
• and if you want to make a public one AMI
• that can also be done here
• correct
• so all basic concepts
• all concepts about AMI
• has been completed

Now we are going to start an instance type

• instance type
• say is it clear
• we are moving to next topic
• instance type within the ec2 instance
• on ec2 service
• ok so instance type
• what is an instance type
• and you know that
• instance type is a configuration
• if you click on instance types
• left hand side
• so these are some instance types
• and in this instances types
• you can find this instance type
• all these other types like
• t2.micro or all thse are
• so t1.micro, t2.nano, t2.micro
• t2.small, so some instance types
• are starting from t or t3
• a1 then c1 then c4
• and lets say if you are picking
• this configuration
• what it means
• lets say you are picking this configuration c4. 4 x large
• it means you have 16 vcpus
• if you are using c4. 4x large
• and you are gonna to use
• x86 64 bit architecture for this instance
• and the total 30 gb RAM you have
• in this instance type
• and the performance of the network
• youll have high
• high means upto more the 1gbps
• right
• its high
• and on demand linux pricing
• if you are selecting this configuration
• youll have the prices
• every configuration will have
• priceing here
• ok and later on further
• go right hand side
• on demand windows pricing
• instead of linux if you are using windows
• the prices are little higher
• thats why people use linux
• because in case of windows
• you are giving almost the twice the price linux has
• im i correct
• you can compare the prices
• for hour bases
• lets say you are taking 0.085 per hour
• and here you have almost 0.177 per hour
• im not talking about a generic thing
• im talking about the professional account
• so if you are taking
• if you are selecting
• because you see in under free tier offcourse you cannot use this
• t3.nano
• under free tier you cannot use this, c5 large
• right
• under free tier
• you can have only t2.micro
• t2.micro
• and that is no there
• did you see that
• is it there?
• so we have only the instance types here
• which are not free of cost
• correct
• so anyone
• you select
• it means you have to pay price to aws
• these are not available for free of cost
• and these are the families
• all these are the families
• like the t3. t2 or some configuration starts from c
• some configurations starts from
• X right
• so if you need to understand
• more pricicely
• or more information
• you will write in web address bar
• aws instance types
• and youll use aws documentation
• and here you go
• and youll find the detail
• detail about instance types
• we have one general purpose family
• if your instance types starts from
• like mac
• t4,t3,t2,m6,m5 or M4 or A1
• so these are from general purpose family
• and you are using general purpose
• provide a balance of compute memory and networking resources
• and it is for generic puposes
• right
• so and these are some configurations
• these are configurations
• you can find it here
• like you click this t4
• you have these instance types
• with all complete information
• and if you want to see what is there
• in m5
• you have all these catagories
• in m5
• there is very long list
• there is very long list of instancse types
• as we normally see in the market
• where you go for machine purchase
• when you go for hardware purchase
• you must have some idea
• that what configuration required for your machine
• so you select your configuration on the basis of two things
• requirement for you machine
• so you select your configuration
• on the basis of two things requirement
• and plus the bidget you have
• plus the cost you want to pay for that
• that hardware
• so similarly
• the same thing, the same concept is applied here
• and first of all
• what feature, this M5 type configuration has
• it is all written here
• right
• next is why you should use this configuration
• it is saying that the m5
• instances are the latest generation of general purpose instances
• powered by intel xeon
• platinum 8175M processors
• and the series is written here very clearly
• so if you are using M5
• it means you are using this kind of cpu
• for your ec2 instances
• and this family provides a balance of compute, memory, network resources and is a good choice of many other applications
• ok so this was the general purpose
• and these are started from
• second if you just go down
• you have one more category
• one more family, compute optimized and the compute optimized started from c6g
• c5,c5a,c5n,c4
• and where you should use compute optimized configuration of your ec2 instances
• if you are looking for the compute
• intensive application
• if you are looking for on a hardware which has,, we should have some compute intensive resources
• like the compute optimized instances are ideal for compute bound application
• that benefits from high performance processors
• so you should understand, how your application is behaving
• thus your application really needs more compute power to execute
• in that case you should use configuration or instance types
• from compute optimized family
• and under this family
• you have almost 6 different catogories
• lets say if you want to see what you have in c3
• first of all what feature you get under this
• ok this is the complete information
• nobody can learn everything
• nobody can learn everything
• because number of things are there
• I’m just telling only the way
• if you stuck somewhere
• if you need help, because this particular, aws dashboard of course will not help you
• it is telling you about the price
• if you are taking m5 large
• so you see where as come
• let me take
• lets say you are taking this m5
• anyone configuration you can take
• and you have the price
• with linux price and with windows
• you have network capability
• you have storage type support
• you have the storage limitation
• you have memory how much RAM you’ll get
• what kind of architecture this instance type has
• and how many vcpus you are getting
• but if you need more information
• about your instance type
• you can go there you can just use this link
• aws.amazon.com/ec2/instancetypes
• you can use this link, this is the link
• you can view this link
• to understand
• is it correct or not
• and similarly
• you had general purpose
• configuration
• second is compute optimized instance types
• and you have memory optimized
• memory optimized ofcourse why memory optimized is needed
• it is saying the memory oprtimized instances are designed to deliver fast performance of work loads that process large data sets in memory
• if you see that the configuration
• so its seems that it is more memory optimized
• right so these configurations are focusing on memory of the configuration
• if your application is memory intensive
• the you should choose memory optimized
• and in memory optimized you have R6g,R5,R59, R54, we have
• multiple categories
• then we take X1
• correct
• and we have an accelerated computing
• so case you are looking for a kind of a server
• which you can use for either machine learning
• artificial intelligence
• may be you are designing some games
• may be you are a good designer
• and you want use a kind of a instance type
• kind of a configuration for your ec2 instance
• which should be GPU based which should be GPU based
• so it is saying that the upto 8 nividia
• a100 tensor core GPU
• GPU you know
• what is GPU
• graphic processor unit
• so such of kind of cards
• such kind of features
• are required in machine
• when you are using
• when you are using hardware accelerator
• based application like autocad
• maya
• or 3D studio MAX
• or some gaming applications
• in that case you can use
• accelerated computing configuration
• of course these are quite expensive
• right
• lets say I’m taking this one
• im taking this one copy
• and just paste it here in the “instance types” search bar
• and youll find, press enter
• and this is the configuration you have
• what if you are selecting this configuration
• youll get 96 vcpus
• and youll get 1152 Gb RAM maximum
• and how much you have to pay
• and this is not basically based on windows
• it is only based on linux pricing we have
• if you are using it
• you have to pay 32.7726 USD/hour
• for every hour youll pay this amount
• if you are using this configuration
• so this is very expensive
• extrememly expensive
• and youll get 400 gbps cards
• you see the network speed
• this is extreme
• you wound get this configuration in markets even in for 25 lakhs 30 lakhs 50 lakhs
• you dont get this
• this is extrememly high configuration machine
• yes
• so this is something that these are currently available
• pricing list as per this dashboard right
• so something is that will be silver partner or may a brownze partner
• with aws
• these amount should not be stagged
• then right
• it should be depends on the partnership right
• i have not said about the partnership
• because they have the different partnership
• in different regions in different countries
• they have the different models
• they are having different models for that
• i have no idea because they have
• different kind of partners
• so do we have any partner in india
• yes, in india we have number of partners
• but if they are selling some solutions to their clients
• so i think they are getting  on what relaxation they are getting
• and how much actually the the actually the price requests that idea i dont have
• oh ok
• so these are basically the pricing that
• that are available on internet as per the aws norms
• right
• yes, yes these are the standard pricing schems in which
• for almost everyone
• if you ae not a partner if you are not a basically a silver partner
• whatever the gold partner
• such kind of things are only with microsoft
• i have no idea about aws
• because we have APN partner
• in aws farixon
• and i think wasintom
• they are the partner of aws
• and must be saving some solutions
• if you need number of machines
• you normally purchase solutions from them
• so i think this is not technical
• actually marketing and sales
• that is what im saying
• suppose giving you an example
• from ericson or may be tcs
• they can do partnership with aws
• for their cloud solutions
• and can sell the solutions to other customers as well
• the relevent customers
• and that should be a different partnership right
• in minimum words i can say that this is entirely
• different field
• its not basically technical
• its sales and marketing field
• and if you are consuming too much resources
• lets say you are TCS
• lets say you are Ericson
• may be you are some reliance company
• and you wanna lot of resources to consume
• you are not the person
• who is consuming ec2 instance of your coming resources for
• just some linked resources
• and definitely you can
• talk directly with aws
• for some further discount
• and not only this
• if you are creating ec2 instance
• it depends what kind of instance you are creating are you creating for long
• or you want to use that for short time duration
• if you want to use the machine for short time duration
• so use actually sharing the prices basis on the power
• but for two year, three year we have different
• plans where you can get
• upto 40,50,60 even 70 % discount
• you can get on these prices
• correct
• ya exactly
• exactly
• so we have a different schemes
• but im just teaching a standard
• what exactly the aws dashboard is saying
• im just speaking about those stats
• got you
• ya
• ok guys, think should not get much detail
• so this was an kind of example i was giving
• means we have number of ec2 instance type and we have more than 379 types almost
• including my free tier eligible
• almost 380 instance types we have
• so it depends what kind of machine you want to
• create on your aws account
• choose an instance type
• if you dont understand, what instance type you should choose
• you can directly speak to aws technical support
• from them
• so they will guide you
• you must have professional account
• such kind of facility is not available on your free tier account
• but under free tier account
• we only have an option to select an instance t2.micro
• correct
• because an very important topic we have now

EBS(Block Storage)

• to start that is EBS block storage
• so this topic ill start from next post
• the reason is very simple this is very lengthy topic
• we have an different kind of EBS volumes
• and instance store
• i just tell you
• so in the mean time you just
• see in
• search in google EBS and instance share
• or you can say AWS root volume type
• so you are using actually
• online content because
• they are changing the content very frequently
• they are changing knowledge very frequently
• so we should not use
• old content
• for your information
• written one book on

Open In Google

• AWS->documentation-> amazon EC2->user guide for linux instances
• yes, these are the two types
• root device storage concepts
• we have an two different kind of root devices with ec2 instance
• one is instance store backed instances
• and another is EBS backed instances
• i was telling you
• if you are using instance store backed instances
• these are temporary so these type of root devices are not storing your data permanently
• so it is saying that the any data on the instance store volume
• persisits as long as the instance is running
• but this data is deleted when the instance is terminated
• right
• so you cannot store data permanantly
• if you are using instance store, backed instances
• and thats why
• we always use amazon EBS-backed instances
• so im giving an kind of home work to you
• and i think youll do it for me
• you have time
• and tomorrow morning we will start EBS volume
• and im just going to share this link with you
• this is the link
• you please see the link here
• and just confirm me
• did you see the link
• yes or no
• yes
• and im gonna to write
• im just going to provide you
• one simple job and a kind of assignment
• liek this is assignment
• distinguish between the two different types of instance root volumes

1. instance store based instances
2. amazon EBS-based instances

• and please do not create EC2 instance using instance
• store based instances
• because this is not free of cost this is not for t2.micro
• because t2.micro supports only EBS based instances feature
• ok it highly depends on
• and please let me know
• what else you can tell me
• about these two types
• tomorrow we can discuss about
• and one thing
• secondly what youll learn
• see youll learn
• two instance root bvolume types
• and tomorrow ill start EBS volume
• what EBS stands for
• elastic block store
• elastic block store
• we have any different types
• lets say we have general purpose
• you have provisioned 10ps
• ill tell you one by one everything
• correct
• you have HDD EBS volume types
• these two belong to SSD EBS volume types
• SSD EBS volume types
• General Purpose
• Provisioned 10Ps

HDD EBS volume types

• all these we will discuss their features
• their limitations
• their threshold
• their read, write capacity
• and minimum & maximum volume
• and few more things will complete
• and we have one more option
• multi attach EBS volumes
• this is very interesting
• this may be a very new feature for you
• because sometimes you know that
• you feel that EBS one, EBS volume cannot be connect
• with multiple EC2 instances
• right
• because in our physical environment one thing is very clear
• one hard disk cannot be connected with physical machines in parallel
• but in virtual environment we have now some features provided by aws
• they just updated this feature, this is new kind of a feature
• called multi attached EBS Volume
• ill discuss about this tomorrow
• so tomorrow is going to be great class for EBS
• so ill start with the EBS and then if we have time
• we will talk about snap shots
• correct
• anyone?
• any question please
• and what im doing
• im just saving this document
• and tomorrows class concepts
• EC2 is a name of a service
• please do understand
• AMI,EBS, instances all these are the components which comes under ec2 instance
• if you see the dashboard
• you are at ec2 dashboard
• and in ec2 dashboard you have instances
• you have images
• you have ebs volume
• and tomorrow we will study about this ebs
• ebs is one component of ec2
• right
• and then we will talk about some security groups
• EIP’s
• alot of others things we have
• ebs is a part of ec2
• EBS Is a volume
• its a block storage volume
• tomorrow ill tell you
• EBS block storage volume
• what is a volume?
• how volume behaves?
• because you are not using any physical harddisk drive kind of component here with virtual machine
• you are taking, you are allocating some space to your virtual machine
• and that space comes from the block storage
• so what is the meaning of the block storage?
• whatever the volume you are taking
• so that volume behaves like one SSD Hard disk
• i think you must have idea about SSD Hard disk
• we have two different kind of hard disk
• so on the top of this SSD Hard disk
• using AMI
• you can launch
• or you can
• you can launch operating system in it
• so once the operating system is installed
• it will always remain in that volume
• if you stop it or when you restart it
• whatever condition you have
• but EBS volume always store your operating system,your data, your configuration of your ec2 instance
• that’s why people are using
• EBS-Backed EC2 instance
• because if you stop the instance eventhen
• the instance is storing your data
• so all these steps ill tell you
• one by one in the morning class tomorrow
• right
• when you launch instance here
• you are in storage
• you are in fourth step
• the fourth step is for storage
• it is very clearly saying that you are using EBS volume
• it is very clearly saying that you can attach EBS volume
• so this is the EBS volume
• and if you want you can attach additional EBS Volume
• it is saying that the free tier eligible customers can get upto 30GB of EBS general purpose (SSD) or magnetic storage
• that ill explain tomorrow
• what is general purpose
• what is magnetic
• right
• so if you have taken the volume type, you have number of options here
• in general purpose we have different types
• provisioned IOPS we have different types
• even in magnetic we have one type
• but if you are adding additional volume
• you have few more volumes types
• like through put optimized
• cold HDD
• we will discuss all these tomorrow
• so we are stopping the machine now
• this is the machine, we are stopping the machine now
• i dont require