My thesis defense for my Bachelor's degree with honours (110/110 cum laude) in Computer Science

1. Università degli studi di Torino
Facoltà di Scienze MM.FF.NN.
Corso di Laurea in Informatica
Cloud computing:
a private solution based on
IBM software
Alberto SCOTTO
Supervisor: Prof. Francesco Bergadano

2. Index
Part I Theory
Part II IBM’s state-of-the-art
Part Our private IaaS solution
III
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3. Part I
Cloud computing:
Theory
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4. The «cloud»
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5. Our definition
[sources: NIST, Gartner, IBM]
• Cloud computing is a computational model such
that:
o Services (in other words, computational resources) are
rapidly provisioned on demand, through a local network or
Internet;
o The architecture is scalable and elastic, i.e. it is able to
sustain varying workloads, as required;
o It is self-managing: once the cloud has been properly
configured, it doesn’t require human interaction.
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6. Taxonomy
Deployment models
Private Hybrid Public
Software
as a Service
(SaaS)
Service models
Platform
as a Service
(PaaS)
Infrastructure
as a Service
(IaaS)
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7. Enabling technologies
4. SOA
3. Billing & Chargeback
2. Automation
1.Virtualization
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8. Part II
The core of our solution
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9. IBM Service Delivery
Manager (ISDM)
IBM Tivoli
Monitoring
IBM Tivoli Service
Automation
Manager
IBM Tivoli Usage
and Accounting
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10. TSAM
The architecture
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11. TSAM
Service abstraction
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12. Part III
Our private IaaS solution
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13. Analysis
• Background: datacenter virtualized with VMware
vSphere 4.1
• The issue: creating virtual servers takes too long (of the
order of weeks)
• Requirements:
o Guest OSs : Windows 2008, RHEL 5
o Softwares: MySQL Server and MySQL Client
o The estimate for the virtual servers to be created has to be
visible to the user before he submits the form; it must be
dynamic, such that it automatically refreshes everytime the
user updates one of the parameters of the project
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14. Design Implementation
• Solution: a private IaaS 1. Installation and
cloud environment, configuration of ISDM
using ISDM as the core 2. Advanced
of the solution customizations:
a) Automating the
provisioning of MySQL
b) Inserting the estimate in
the form for creating
virtual servers
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15. Provisioning MySQL
Final result
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16. Provisioning MySQL
Implementation (1)
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17. Provisioning MySQL
Implementation (2)
• 1st step: configuring in TPM a simple sw product for
MySQL
• Problem: as required by TSAM, cygwin is installed on
Windows VMs, so DOS commands don’t work
• Solution: forcing TPM to see Windows VMs as if they
were *nix VMs
• Implementation: extending the
"Default_SoftwareInstallable_Install" workflow by
exploiting the corresponding
"Default_SoftwareInstallable_InstallPre" Extension
point LDO
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18. The estimate
Final result
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19. The estimate
Implementation (1)
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20. The estimate
Implementation (2)
• The form for creating virtual servers is implemented
by the Dojo class CreateProjectWithServer
• In this class we add custom functions which
compute the estimate and refresh the HTML table
• To implement the dynamic estimate, we modify the
default event handlers (e.g.: _onDiskChanged) so
that they also call our custom functions
• Decoupling between this class and the values of
the rates of the resources (except for the prices of
the licences of the OSs), realized thanks to AJAX
calls
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21. Future work
• Estimate: decoupling should be also applied to the
prices of the licenses of the OSs
• Creating reports for chargeback to implement utility
computing
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22. Conclusions
• Cloud computing is an old idea with a promising
future (especially once standardized)
• In this presentation we have shown that it is possible
to build a private cloud solution with relative ease
thanks to the (documented) cutomizability of ISDM
• In a real-world context, things may be more
complex, but everything is possible through
customization
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