Cost Modelling for Cloud Computing utilisation in Long-Term Digital Preservation Dr. Essam Shehab Miss Zaira Fernandez
ENSURE Project ENSURE project (Enabling knowledge Sustainability Usability and Recovery for Economic value) Involving 13 partners and is funded by EU-FP7 with a total budget of 12.04 million Provides a total solution for Long Term Digital Preservation activities Cranfield leads the cost and economic performance engine development work packages 2
ENSURE System Architecture Administrator Requirements Configuration Selection Configurator Preservation Plan Optimizer Cost/Risk Evaluation Economic Performance Evaluation Quality Evaluation Preservation Plan Configuration Layer User Ingest Access Information Preparation ENSURE Preservation Runtime Preservation Digital Asset Lifecycle Mgmt. Content-Aware Long-Term Data Protection Preservation Runtime Infrastructure Preservation-aware Storage Services System Runtime Storage/Compute Service 1 Storage/Compute Service 2 Storage/Compute Service n 3
Cost Modelling for Cloud Computing utilisation in Long-Term Digital Preservation Dr. Essam Shehab Miss Zaira Fernandez
Team Dr. Essam Shehab Isaac Sanya Mohamed Badawy Fatma Ocal Bartosz Namiesnik Julien Morineau Stephen Odika Zaira Fernandez Ortiz 5
Agenda Background Aim Results Validation Conclusions 6
Digital preservation Organisations are currently facing two main problems: Increase volume of data Software and Hardware obsolescence issues Digital Preservation is the active management of digital information, over time, to ensure the availability, accessibility, undertandibility and usability of the digital data. Digital Preservation Digital Storage 8
Cloud computing Cloud computing is defined as an enabling and delivering computing services technology over a network. Features On-demand self-service Scalability and elasticity Cloud Service Provider Network Device and location independence Multitenancy End users 9
Public vs. Private Cloud computing Public Cloud Computing Technical perspective Private Cloud Computing Outsourced service The cloud is shared by different organisations Owned by the organisation The cloud is used by a single organisation. Customised cloud Economic perspective Pay-per-used Business perspective High initial costs High running costs Enable the organisation to focus in the core business Total control of data. 10
Existing approaches CBS for building and maintaining a private cloud Total Cost of Ownership of a public cloud Cost model for hybrid clouds Knowledge gap analysis 11
Aim of the project Develop a cost model for cloud computing utilisation in long-term digital preservation, considering the impact of uncertainties and obsolescence issues. 12
Research Methodology Feedback Feedback Generation of Cost Breakdown Structures Categorisation of Uncertainties and Obsolescence Development of Cost Model using Monte Carlo Simulation Improve Improve 13
Interviews 14
Results Cost Breakdown Structure Classification of Uncertainties Classification of Obsolescences Cost Modelling Tool 15
CBS Public cloud Public cloud Storage Computing Other cost 16
CBS Private cloud Acquisition Implementation Private cloud Running Redundancy 17
Obsolescence of digital preservation Obsolescence Process of becoming out of support or end of life. Software File Formats Operating Systems Applications OBSOLESCENCE CLASSIFICATION Hardware Whole System Part of the System Storage Media Use of Application People s Skills Extract Information from File Usefulness of Extracted Information 18
Uncertainties of digital preservation 19
Uncertainties of digital preservation Cost Breakdown Structure 1. Best Case Cost 2. Most Likely Cost 3. Worst Case Cost 20
Flow chart 21
Cost Model Tool - Inputs 22
Total Annual Cost Monte Carlo Simulation Acquisition Cost Implementation Cost Operational Cost Redundancy Cost Annual Cost Structure 23
Validation Initial Cost Breakdown Structure IMPROVEMENT Used techniques Interviews Questionnaires Workshops Cost Modelling Tool Revised Cost Breakdown Structure WebEx meetings IMPROVEMENT Continous Validation Initial Uncertainties Categorisation IMPROVEMENT Cost Model Assumptions and Rules Revised Uncertainties Categorisation 24
Industrial benefits Innovative decision-support tool for the industry Contribution to knowledge for different cloud computing deployment costs model Quantification of impact of uncertainties and obsolescence issues on cost of the cloud for LTDP 25
Conclusions Public cloud has emerged to organisations as a cost-effective solution. Private cloud requires high initial investment There are diverse categories of uncertainties and obsolescence in cloud deployment that must be considered while decision-making. 26
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