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Cloud Computing 101

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Cost implications. Total cost of ownership. Do all cost components result in increased or decreased expense. Personnel costs need less technical administration – PowerPoint PPT presentation

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Title: Cloud Computing 101


1
Cloud Computing 101
  • Basic concepts and library applications

Marshall Breeding Director for Innovative
Technology and Research Vanderbilt University
Library Founder and Publisher, Library Technology
Guides http//www.librarytechnology.org/ http//tw
itter.com/mbreeding
Oct 18, 2011
Internet Librarian 2011
2
Summary
  • So exactly what does it mean to move data and
    services to the cloud? This cybertour discusses
    the concept the advantages of cloud computing,
    where your documents and data live on the
    internet how you can utilize web services in the
    cloud and what libraries are currently doing in
    the cloud.

3
Continuum of Abstraction
  • Locally owned and installed servers
  • Co-located servers
  • Co-located virtual servers
  • Web hosting
  • Server hosting services
  • Application Service Provider
  • Software-as-a-service
  • Infrastructure-as-a-service
  • Platform-as-a-service

The Advance of Computing From the Ground to the
Cloud Computers in Libraries, December
2009 http//www.librarytechnology.org/ltg-displayt
ext.pl?RC14384
4
What is Cloud computing?
  • Wikipedia
  • Cloud computing is Internet-based computing,
    whereby shared resources, software, and
    information are provided to computers and other
    devices on demand, like the electricity grid.

http//en.wikipedia.org/wiki/Cloud_computing
5
Cloud computing as marketing term
  • Cloud computing used very freely, tagged to
    almost any virtualized environment
  • Any arrangement where the library relies on some
    kind of remote hosting environment for major
    automation components
  • Includes almost any vendor-hosted product offering

6
Cloud computing characteristics
  • Web-based Interfaces
  • Externally hosted
  • Pricing subscription or utility
  • Highly abstracted computing model
  • Provisioned on demand
  • Scaled according to variable needs
  • Elastic consumption of resources can contract
    and expand according to demand

7
Fundamental technology shift
  • Mainframe computing
  • Client/Server
  • Cloud Computing

http//www.flickr.com/photos/carrick/61952845/
http//soacloudcomputing.blogspot.com/2008/10/clou
d-computing.html
http//www.javaworld.com/javaworld/jw-10-2001/jw-1
019-jxta.html
8
Gartner Hype Cycle 2009
9
Gartner Hype Cycle 2010
10
Gartner Hype Cycle 2011
11
Local Computing
  • Traditional model
  • Locally owned and managed
  • Shifting from departmental to enterprise
  • Departmental servers co-located in central IT
    data centers
  • Increasingly virtualized

12
Virtualization
  • The ability for multiple computing images to
    simultaneously exist on one physical server
  • Physical hardware partitioned into multiple
    instances using virtual machine management tools
    such as Vmware
  • Applicable to local, remote, and cloud models

13
Application service provider
  • Business applications hosted by software vendor
  • Standalone application on discrete or virtualized
    hardware
  • Staff and public clients accessed via the
    Internet
  • Same user interfaces and functionality as if
    installed locally

14
ASP vs SaaS
From THINKstrategies CIOs Guide to
Software-as-a-Service
15
Software-as-a-Service
  • Complete software application, customized for
    customer use
  • Software delivered through cloud infrastructure,
    data stored on cloud
  • Eg Salesforce.comwidely used business
    infrastructure

16
Google Apps
17
Microsoft Office 365
18
Enterprise SaaS deployments
  • Many universities outsourcing mail
  • Retain institutional domain names
  • Google Apps Education Edition
  • Gmail
  • Microsoft Live_at_Edu

19
Infrastructure-as-a-service
  • Provisioning of Equipment
  • Servers, storage
  • Virtual server provisioning
  • Examples
  • Amazon Elastic Compute Cloud (EC2)
  • Amazon Simple Storage Service (S3)
  • Rackspace Cloud (http//www.rackspacecloud.com/)
  • EMC2 Atmos (http//www.atmosonline.com/)

20
Amazon EC2
  • Machine Instances
  • Red Hat Enterprise Linux
  • Debian
  • Fedora
  • Ubuntu Linux
  • Open Solaris
  • Windows Server 2003/2008

21
Storage-as-a-Service
  • Provisioned, on-demand storage
  • Bundled to, or separate from other cloud services

22
Platform-as-a-Platform as a Service
  • Virtualized computing environment for deployment
    of software
  • Application engine, no specific server
    provisioning
  • Examples
  • Google App Engine
  • SDKs for Java, Python
  • Heroku ruby platform
  • Amazon Web Service

23
Private vs Public cloud
  • Public multi-tenant provisioning
  • Logically isolated computing environment
  • Theoretical security / competitive concerns
  • Private cloud architecture, institutionally
    controlled
  • Enforces physical segregation
  • Leverages cost and scalability
  • Institutions may require private clouds from
    providers
  • Institutions may operate their own cloud
    infrastructure for internal clients

24
Library automation through SaaS
  • Almost all library automation products offered
    through hosted options
  • Saas or ASP?

25
ILS Products offered as SaaS (mostly ASP_
  • SirsiDynix Symphony
  • SirsiDynix Horizon
  • Innovative Interfaces Millennium
  • Ex Libris Aleph
  • EOS International EOS.Web
  • Evergreen Equinox Software
  • Koha LibLime, ByWater, many others
    internationally
  • many other examples

26
Multi-tenant SaaS
  • Serials Solutions
  • Summon
  • Web-scale management solution
  • 360 Search, 360 Link, KnowledgeWorks
  • Ex Libris
  • Alma
  • Primo Central
  • BiblioCommons
  • OCLC Web-scale Management Services

27
Repositories in the cloud
  • Dspace institutional repository application
  • Fedora generalized repository platform
  • DuraSpace organization now over both Dspace and
    Fedora
  • DuraCloud shared, hosted repository platform
  • Pilot since 2009, production in early 2011
  • http//www.duraspace.org/duracloud.php

28
Caveats and concerns with SaaS
  • Libraries must have adequate bandwidth to support
    access to remote applications without latency
  • Quality of service agreements that guarantee
    performance and reliability factors
  • Configurability and customizability limitations
  • Access to APIs
  • Ability to interoperate with 3rd party
    applications
  • Eg Connect SaaS ILS with discovery product from
    another vendor

29
Cost implications
  • Total cost of ownership
  • Do all cost components result in increased or
    decreased expense
  • Personnel costs need less technical
    administration
  • Hardware server hardware eliminated
  • Software costs subscription, license,
    maintenance/support
  • Indirect costs energy costs associated with
    power and cooling of servers in data center
  • IaaS balance elimination of hardware investments
    for ongoing usage fees
  • Especially attractive for development and
    prototyping

30
Risks and concerns
  • Privacy of data
  • Policies, regulations, jurisdictions
  • Ownership of data
  • Avoid vendor lock-in
  • Integrity of Data
  • Backups and disaster recovery

31
Security issues
  • Most providers implement stronger safeguards
    beyond the capacity of local institutions
  • Virtual instances equally susceptible to poor
    security practices as local computing

32
Cloud computing trends for libraries
  • Increased migration away from local computing
    toward some form of remote / hosted / virtualized
    alternative
  • Cloud computing especially attractive to
    libraries with few technology support personnel
  • Adequate bandwidth will continue to be a limiting
    factor

33
Increased pressure
  • Library automation vendors promoting SaaS
    offerings
  • Some companies already exclusively SaaS
  • Software pricing increasingly favorable to SaaS

34
Caveat
  • technologies promoted by companies and
    organizations have a vested interest in their
    adoption
  • Critically assess viability of the technology and
    its appropriateness for your organization

35
Questions and Discussion
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