,cloud data storage technologies ,cloud storage ,cloud storage architecture and structure model ,فناوری های ذخیره سازی داده در ابر ,رایانش ابری ,cloud computing

1. ‫ابر‬ ‫در‬ ‫داده‬ ‫سازی‬ ‫ذخیره‬ ‫های‬ ‫فناوری‬
‫کننده‬ ‫ارائه‬:‫نظری‬ ‫اهلل‬ ‫حبیب‬
‫استاد‬:‫نوگورانی‬ ‫دری‬ ‫صادق‬ ‫دکتر‬
‫بهار‬1399
‫درس‬:‫ابری‬ ‫رایانش‬

2. CONTENT
Cloud Storage Concept
Cloud storage architecture and structure model
Distributed data storage technology
 Data deduplication Technology
Cloud storage features and advantages
The application of cloud storage
Typical industry cloud storage example
Cloud storage development trends and challenges
Conclusion

3. CLOUD STORAGE CONCEPT
Cloud storage refers to the use of functions such as
• clustering applications,
• grid technologies,
• or distributed file systems
Cloud storage is a data storage And management as
• the core of the cloud computing system.

4. CLOUD STORAGE ARCHITECTURE AND STRUCTURE MODEL
Cloud Storage simple structure diagram
• Orange storage node (storage node) is
responsible for storing the file
• blue control node (control node) is as a file index,
and is responsible for monitoring the storage node
capacity and load balance
• The gray box (NFS, HTTP, FTP, WebDav) is the
application side

5. Cloud storage in the design usually consider the following three points:
1. Capacity, bandwidth expansion is simple
2. Whether the bandwidth grows linearly
3. Is it easy to manage?
CLOUD STORAGE ARCHITECTURE AND STRUCTURE MODEL

6. CLOUD STORAGE STRUCTURE MODEL
Cloud storage is not just hardware,
• but network equipment,
• storage devices,
• servers,
• application software,
• public access interface,
• access network
• and client programs
• and other parts of the complex system.

7. CLOUD STORAGE SYSTEM STRUCTURE MODEL
CONSISTS OF FOUR LAYERS

8. DISTRIBUTED DATA STORAGE TECHNOLOGY
The core idea of distributed storage system is
• to store data in multiple independent storage devices,
• using extensible system structure,
• using more than one storage server,
• Shared storage load,
• using location information stored in the server location,
• not only improves the system reliability,
• availability,
• and access efficiency,
• but also is easy to expand.

9. Common distributed storage technologies are:
• Network storage technology
• The file system
• P2P storage technology
DISTRIBUTED DATA STORAGE TECHNOLOGY

10. DATA DEDUPLICATION TECHNOLOGY
The main idea is to delete duplicate data
in the data set,
• And only one of them is retained,
• Thus eliminating redundant data.
Fixed-length block
• The advantages of the fixed-length
block algorithm are simple and high
performance, but it is very sensitive to
data insertion and deletion

11. The CDC algorithm
• First, the CDC algorithm uses the Rabin fingerprint algorithm to divide the file into data blocks
• Second, the hash algorithm is used to calculate the fingerprint of each data block using a fixed-
size sliding window.
• Finally, the obtained data block fingerprint is compared with the existing data block
fingerprints in the storage system, and the duplicate data blocks with the same fingerprint value
are deleted
Sliding block algorithm
• The sliding block algorithm combines the advantages of fixed length segmentation and CDC
segmentation, and the block size is fixed.
• On the one hand, it can improve the query and contrast efficiency of the data block fingerprint.
• On the other hand, it also reduces the storage cost of data blocks and improves the overall
performance of the system.
DATA DEDUPLICATION TECHNOLOGY

12. CLOUD STORAGE FEATURES AND ADVANTAGES
Advantages to users
1. pay on demand
2. Reduce management difficulty;
3. The common data replication, backup, server expansion
4. more flexible storage control space
The advantages of the enterprise
1. The cost advantage
2. Management advantages
3. Access advantages
4. Tailored solutions

13. THE APPLICATION OF CLOUD STORAGE
Personal level cloud storage applications
• Net disk
• Online document editing
• Online games
Enterprise cloud storage applications
• Enterprise space rental services
• Enterprise-class remote data backup and disaster recovery
• Video surveillance system

14. TYPICAL INDUSTRY CLOUD STORAGE EXAMPLE
Introduction to i Cloud
• iCloud is the cloud service that Apple
launched at the WWDC conference in
June 2011.
• It can back up your various data such as
music, games, apps, pictures and contacts
to the cloud,
• but it's not just a cloud storage application,
iCloud is a platform,
• iPhone, iPad, iMac, Macbook and other iOS
devices using Apple devices can use it.

15. Baidu cloud disk
• Users can upload their own files, photos, videos
and other information through the Internet to
virtual cloud storage,
• users can anytime any place any kind of
equipment and through the Internet to access or
download their own content in the cloud.
• Baidu cloud disk free of charge to the user 15GB
of storage space,
TYPICAL INDUSTRY CLOUD STORAGE EXAMPLE

16. CLOUD STORAGE DEVELOPMENT TRENDS AND
CHALLENGES
Cloud storage is currently facing major
problems are:
• broadband bottlenecks,
• security and availability,
• infrastructure

17. CONCLUSIONS
• introduced the Cloud Storage Concept and its models
• Compares the advantages and disadvantages of the fixed long block algorithm and the
variable length block algorithm,
• and propose the slider algorithm to optimize the storage space utilization
• defined the trends and the challenges of the cloud storage technology
• defined examples of the cloud storage such as i cloud and Baidu cloud

18. REFERENCES
1. Qiu Y, Zhao X, Zhao X. Cloud Storage Technology. (2017):1–9.
2. Huang L, Liu F. Data Storage Technology and Its development based on Cloud
Computing. 2012;(Iccia):811–4.
3. Siregar STM, Syahputra MF. Research on Data Storage Technology in Cloud Computing
Environment Research on Data Storage Technology in Cloud Computing Environment.