Why is Management of Distributed Systems Difficult?

• Large scale

• Multiple organisations

• Required availability

• Distribution

• Security

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Large scale - may be millions of objects eg mobile phones

Roam to a different country - connect to a different service provider

Cannot shut down system to reconfigure correct a fault

Physical distribution - sometime in different countries around the world - difficult to get a consistent state or to perform an update of all components at the same time

Management is very powerful so system must be protected from unauthorised users performing management actions