Seite 68 - Cloud Migration Version 2012 english

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delivery enable the end users to select from a wide range of managed 
Platform‐as‐a‐Service and/or Infrastructure‐as‐a‐Servicesolutions. The 
service delivery platform is normally built upon the very same Cloud 
foundation technologies as have been mentioned above. Automation 
enables businesses to build on an integrated foundation improving speed 
and dexterity while reducing cycle times.  At this stage, they can simplify 
administrative task through self‐service provisioning and also automate IT 
service deployment.  This frees up critical resources from routine tasks 
which can then be reallocated to projects delivering higher value products 
and services. A growing portfolio of Cloud solutions, various offerings of 
business and industry solutions on the Cloud (public or member Clouds) are 
normally offered as SaaS.  
Orchestration 
Orchestration drives seamless management of heterogeneous servers, 
storage and networks by bringing diverse resources under a single point of 
control, which helps guarantee specific service levels, improves reliability, 
availability and security of service.  Orchestration also ensures that the right 
automation and prioritisation decisions are made when different groups are 
competing for the same network bandwidth, data, and/or other computing 
resources.    
For example by optimising and making extensive use of orchestration a 
global acting communication company was able to reduce their datacentres 
from two hundred to five active datacentres globally.
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Performance management 
The objective of integrating any Cloud solution, besides leveraging economic 
benefits and providing services with an attractive content, is bound to be 
user satisfaction at the end of the day. This correlates very tightly with the 
performance of the individual applications. Shared use of resources (e.g 
servers, network components, network lines) can cause overloads and long 
response times which end users find irritating, and can lead to infringements 
against SLAs, if these have been agreed. While measuring performance in 
your own IT environment is fairly simple from a technical point of view these 
tasks are a major challenge after integrating private or Public Cloud 
solutions. The service level agreement will typically refer to Key 
Performance Indicators (KPI). From the many possible KPIs you first need to 
select a suitable combination capable of representing the expected 
performance and making it measurable.  These could relate to availability 
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An expanded version of this chapter can be found under