final cloud & grid computing by sindu
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8/6/2019 Final Cloud & Grid Computing by Sindu
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OUTLINEu
What is Grid Computing?
Mechanism of Grid Computing «
What is Cloud Computing?
Live example«
How cloud computing works?
Layers«
Different Cloud types «
Grid Vs Cloud computing
References
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WHAT IS GRID COMPUTING ..?
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GRID COMPUTING «
Grid computing is a form of distributed computing
whereby resources of many computers in a network
is used at the same time, to solve a single problem.
Grid systems are designed for collaborative sharingof resources.
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MECHANISM OF GRID COMPUTING «
When a large task need to execute.
First it understand the flow of the program & segregate.
Among those segregated modules ,it identify the moduleswhich can executed independently.
Those independently executable task are assigned to
different machine( for achieving high computational power).
After complete execution of every module, the original
machine collects all the results of every terminal ,group
them and produce as final output.
.
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APPLICATIONS «It se in eat er f r ecasting.
It se in SE I@home(Sear ch f or E tr a err estrial
Intelligence)
Using this application, the end- ser can donate their
nused pr ocessing power to the pr oject(li e scientific
r esear ch or ganizations).
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Are you facing a problem in Purchasing and
installing the s/w¶s for every new computer in an
organization«?
Single application can solve u¶r problem«.i.e. cloud computing«
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ACCORDING TOGOOGLE ANALYSIS«.
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According to Google analysis«
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What is
Cloud Computing...?
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CLOUD COMPUTING«.
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LIVE EXAMPLEu
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ACHRONYM OF CLOUD ACCORDING TO AT&T«
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LAYERS..:
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- Software as a service.End user can use available s/w¶s in cloud, but the end
user can not perform changes on s/w.eg: Mozy : It helps people to backup their data.
cloud consumers can use this s/w without buying or
coding.
- Platform as a service.Developers use this layer to build , test & host the
applications.
eg:-Windows Azzure.
-Infrastructure as a service. No need to purchase or manage physical datacenter
equipments(servers, storage , networking etc..)
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CLOUD TYP «
Public cloud
Private cloud
Hybrid Cloud
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Cloud Computing Services:
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ISSUES TO CONSIDER«
THRESHOLD POLICY :- It quickly allot & relieve
the resources as per the client request
INTEROPERABILITY ISSUE:-Migration of data is
possible from one cloud provider to another
cloud provider.
HIDDEN COST
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SECURITY IN CLOUD COMPUTING«.
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Encoding technique :
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1. Generate random symmetric key: R
2. Encrypt data
3. Calculate hash of encrypted data: H
4. Append (H XOR R) to the encrypted data
Encoding steps:
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Decoding technique:
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ADVANTAGES:
1. Consumer can easily maintain the data on cloud.
2. Cloud providers can easily increase their profits by
reprovision of resources to the customers.
3. Using this employees can work from home.
4. Pay for what you use.
5. Accessing the data is always possible(not only in the office)
6. The cloud is scalable.
7. Environment Friendly(Green computing)
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DISADVANTAGES:
1. Additional cost of data transfer fees.
2. It poses a serious security uestion, as your data is
held in the hands of third parties and you have no other
choice but to trust them that they will keep your things
safe and private.
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GRID VS CLOUD«
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Conclusion«
Grid computing provides the mean to share and unify
heterogeneous computing resources.
It is the starting point of the cloud computing.
Cloud computing essentially represents the increasing trendtowards the external deployment of IT resources, such as
computational power, storage or business applications and obtain
them as service.
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