View
214
Download
0
Category
Preview:
Citation preview
ATI – Cloud Computing
anton@ti.ukdw.ac.id
What is cloud computing?
Latar belakang: server
maintenance
Biaya IT berdasarkan infrastruktur
Cost model di perusahaan
Traditional cost model
Cloud cost model
Traditional vs. Cloud application
development
Structural Oriented Programming
Object Oriented Programming
Service Oriented
Architecture
Cloud Computing
Non Structural Programming
Programming
Internet
Mainframe
Client Server
Internet
Traditional vs. Cloud application
development
Single Tenant
Organisation
Organisation C
Organisation A
Organisation B
Compile time Application Generation
Relational DB Structure-Driven Architecture
Dedicated Resources
Traditional
Runtime Application Generation
Metadata-Driven Architecture
On Demand Shared Resources
Cloud
Infrastructure
Application
Platform
Infrastructure as a Service
Application as a Service
Platform as a
Service
Multitenant
Resources
Multiple Codebases
Local Environment
Complex Collaboration and Integration
No Sharing Constraints and Governance Limits
Resources
Single Codebase
Hosted
Simple Collaboration and Integration
Sharing Constraints and Governance Limits
Cloud Computing is…
… virtualized computing power and storage
delivered via platform-agnostic
infrastructures of abstracted hardware and
software, accessed over the Internet. software, accessed over the Internet.
These shared, on-demand IT resources, are
created and disposed efficiently, are
dynamically scalable through a variety of
programmatic interfaces and are billed
variably based on measurable usage.
What Cloud Computing for?
1. Web-scale problems
2. Large data centers
3. Different models of computing
4. Highly-interactive Web applications4. Highly-interactive Web applications
1. Web-Scale Problems
• 2 Characteristics:
– Data-intensive focused problem
– Processing-intensive focused problem
• Examples:• Examples:
– Crawling, indexing, searching, mining the Web
– Artificial Life
– Web 2.0 applications
How much data?
• Internet archive-Wayback Machine has 2 PB + 20 TB/month (2006)
• Google processes 20 PB a day (2008)
• “all words ever spoken by human beings” ~ 5 EB
• National Oceanic and Atmospheric Administration has • National Oceanic and Atmospheric Administration has ~1 PB climate data (2007)
• CERN’s LHC (particle accelerator) will generate 15 PB a year (2008)
• Info: PB: PetaByte = 1024 TB, EB: ExaByte = 1024 PB
2. Large Data Centers
• Web-scale problems? throw more machines
at it!
• Trends: centralization of computing resources
in large data centersin large data centers
– Needs more infrastructures!
• Important Issues:
– Redundancy
– Efficiency
3. Different Computing Models
• Utility computing
– Why buy machines when you can rent?
– Examples: Amazon’s EC2, GoGrid, AppNexus
• Infrastructure as a Service (IaaS) – network
architects
• Platform as a Service (PaaS) - developers
• Software as a Service (SaaS) – end users
“Why do it yourself if you can pay someone to do it for you?”
The Cloud Computing Principles
- User centric: berorientasi pada pengguna
- Openness: teknologinya standard
- Interoperability: antar platform
- Evolution: mudah dikembangkan- Evolution: mudah dikembangkan
- Transparency: tidak perlu mempermasalahkan
dimana client dan servernya
- Security: keamanan terjamin
Cloud Computing’s Benefits
� Software as a Subscription
� Reduced Software Maintenance
� Cost Reduction
� Environmentally Friendly
� Matches Current Computing Trends
� Portability
� Version less Software
Ease of Use
• Deploy infrastructure with a API
– No cabling, screwdrivers, racking, unboxing,
buying
– Anytime, anywhere, anyplace– Anytime, anywhere, anyplace
– Do it yourself remotely from anywhere anytime
Risk
• Nothing to buy
• Cancel immediately
• Change instantly, even operating systems
• Throw it out• Throw it out
• Rebuild it instantly after testing
RISK
Reliability
• Based on enterprise grade hardware
• Design for failures:
– Automatically replacements
– Use multiple clouds– Use multiple clouds
Components of Cloud Computing
Architecture
• the front end - is the part seen by the client,
i.e. the computer user.
– This includes the client’s network (or computer)
and the applications used to access the cloud via and the applications used to access the cloud via
user interface such as a web browser.
• the back end - is the ‘cloud’ itself, comprising
various computers, servers and data storage
devices.
Cloud computing types
• Public clouds computing environment areopen for use to anyone who wants to sign up and
use them.
• These are run by vendors and applications
from different customers are likely to be from different customers are likely to be
mixed together on the cloud’s servers,
storage systems, and networks.
• Examples of a public cloud: Amazon Web Services
and Google's AppEngine
• A private cloud is basically an organization that needs
more control over their data than they can get by
using a vendor hosted service
Cloud computing types
• A hybrid cloud combine both public and private cloud
models.
Private dan Public Cloud
Cloud computing architecture
Cloud Service Provider
Security
Portal
Cloud Service Consumers
API
Software as a Service
Platform as a Service
Infrastructure as a Service
Infrastructure
Cloud Service Management
Cloud Computing Operating Environment Management
Cloud Business Management
Security
Cloud Tools
Cloud Application
User
Legacy System, Infrastructure
Local Development
Platform & IDE
Cloud Application Developer
Major Players’ Cloud Computing Services
MicrosoftForce.com
Cordys
IBM
AmazonMOSSO
Force.com
Cloud Providers
Types of Cloud Services
1. IaaS
2. PaaS
3. SaaS
Perbedaan istilah
Infrastructure as a Service (IaaS)
• sometimes referred as HaaS or Hardware as a Service and it involves both storage services and computing power.
• Provides user computing resources and storage comprised with many servers as an on-demand andcomprised with many servers as an on-demand and“pay per use” service: Data Center, Bandwidth, Private Line Access, Servers and Server Room, Firewall, Storage space, VPN …..
• Examples:
– Amazon EC2 (ElasticComputeCloud)
– Rackspace: cheaper than EC2 www.rackspace.com
Cloud “Infrastructure”
• Provide “Compute” and “Storage” clouds
• Virtualization layers (hardware/software)
• Examples: Amazon EC2, GoGrid, Amazon S3, Nirvanix, Linode
• Advantages: Full control of environments and infrastructure
• Disadvantages: premium price point, limited competition• Disadvantages: premium price point, limited competition
Platform as-a-Service (PaaS)
�With PaaS, computing platform provides supplies tools and a development environment to help companies build, test, and deploy Web-based applications.
�Bundles all stack components (hardware, infrastructure, storage) together with database, security, workflow, user interface, and other tools infrastructure, storage) together with database, security, workflow, user interface, and other tools that allow users to create and host powerful business applications, web sites, and mobile apps.
�API based, rapid application with low cost
Examples
– Sales force http://www.force.com
– Windows Azure
Cloud “Platforms”
• “Closed” environments
• Examples: Google App Engine, Heroku, Mosso, Engine Yard,
Joyent or Force.com (SalesForce Dev Platform)
• Advantages: Good for developers, more control than
“Application” Clouds, tightly configured“Application” Clouds, tightly configured
• Disadvantages: Restricted to what is available, other
dependencies
Software as a Service (SaaS )
• Applications or software is delivered as a
service to the customer who can access the
program from any online device, eliminating
the need to install and run the application on the need to install and run the application on
the customer's own computers and simplifying
maintenance and support.
• Ex: Hotmail, Google Apps, Skype, Sales Force
• Also called: on-demand service
SaaS can be defined through five key
ideas:
• Services are fully managed and hosted;
• Have regular recurring payments (Pay-As-
They-Go and Pay-As-They-Grow);
• Allow for anytime, anywhere access (usually • Allow for anytime, anywhere access (usually
24/7 services) ;
• Have multiple tenants on servers
• Don’t require installation of specialized
software
Cloud “Applications”
• Most common Cloud / Many providers of different services
• Examples: Gmail, Yahoo! Mail, Quicken Online, Skype
• Advantages: Free, Easy, Consumer Adoption
• Disadvantages: Limited functionality, no control or access to
underlying technologyunderlying technology
Cloud OS & Addition
• EyeOS - http://www.eyeos.com/
• ZeroPC - http://www.zeropc.com/
• Cloud computing is eco-friendly
• Cloud computing is impossible without the
Internet
• The key of cloud computing is trust!
Cloud Computing @ Daily life
$50 per user
per year
Future clouds
Future clouds
Cloud computing and IT issues:
• Service level agreements – What assurances do we have for uptime, legal protection, and security?
• Uptime and reliability – How does this provider compare to being able to locally host and manage our resources?
• Cost and affordability – What personnel and technology resources are involved with a hosted versus local solution?
• Legal and organizational issues• Legal and organizational issues – What organizational and legal issues do we need to consider? Are we sure that the platform and our connection to it are secure?
• Staff knowledge – How would migrating to this platform impact staff knowledge and competency? Do we know everything that we need to know?
NEXT
• Arsitektur Search Engine
Recommended