Cloud Computing
Hugo Eiji Tibana Carvalho
MSc. Student @ GTA
Introduction
• Cloud Computing
– Provisioning of computing infrastructure
• Move things to the cloud
– Emerging area
• Potential to transform IT industry
• New aspects
– Illusion of infinite computing resources on demand
– Elimination of up-front commitment (start small and increase
when needed)
– Pay for use on a short-term basis as needed
• 1 server for 1000 hours = 1000 servers for 1 hour
Definition
• Clouding Computing
– Pool of computational resources
• Clouds available in pay-as-you-go manner to public
– Public Cloud
• Services offered in the cloud
− Amazon Web Services, Google AppEngine, Microsoft Azure,
Dropbox, Gmail, Google Docs, SpiderOAK, Sugarsync…
– Private cloud
• Internal datacenters of a business or organization
Classes of Cloud Computing
Cloud Advantages
• Service providers
– Simplified software installation and maintenance
– Centralized control over versioning
– Elasticity
• End users
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Services available anytime anywhere
Easy data sharing
Dynamic access to processor power
Failure resilience
Data locality
Opportunities
• Mobile interactive applications
• Parallel batch processing
– Large experiments
• Analytics and OLAP
– Datamining
• Extension of computing-intensive desktop apps
– Matlab, Mathematica
• Dynamic resource allocation
Top 10 Obstacles and
Opportunities
Cloud Providers
• Cost Distribution
Cloud Providers
• Size and Energy
Scaling Cloud to Fill User Needs
Some Actual Problems
• Availability (early 2009)
Conclusions
• Cloud opportunities
– New research topics
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Privacy in cloud
Elasticity
Billing
Accountability
• Cloud challenges
– Availability, Security, Elasticity…
• Cloud computing
– Huge success
– Opportunity to develop new models and applications
– Migration of current services into the cloud
•
Carvalho, H. E. T., Fernandes, N. C., Duarte, O. C. M. B., Pujolle, G. - "SLAPv:
A Service Level Agreement Enforcer for Virtual Networks", in International
Conference on Computing, Networking and Communications, Internet Services
and Applications Symposium (ICNC12 - ISA), January 2012,
English, A4 size, 5 p., file: CFDP12.pdf
•
Carvalho, H. E. T., and Duarte, O. C. M. B. - "VOLTAIC : Volume Optimization
Layer To AssIgn Cloud resources", accepted in The 3rd International
Conference on Information and Communications Systems - ICICS-2012, Irbid,
Jordan, April 2012.
English, A4 size, 6 p., file: CD12.pdf
•
Carvalho, H. E. T., Fernandes, N. C., and Duarte, O. C. M. B. - "Um
Controlador Robusto de Acordos de Nível de Serviço para Redes Virtuais
Baseado em Lógica Nebulosa", in XXIX Simpósio Brasileiro de Redes de
Computadores e Sistemas Distribuídos - SBRC'2011, Campo Grande, MS,
Brazil, May 2011.
Portuguese, A4 size, 14 p., file: CFD11.pdf
Cloud Computing
Hugo Eiji Tibana Carvalho
MSc. Student @ GTA