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Old 01-10-2012, 01:23 PM
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whcdavid whcdavid is offline
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If your application needs to run without any failure, then you need a cluster solution. For an example, if you are running trading application, your application shouldn't go down, if it goes down, you will loose $x million dollars.
High availability ismore and more important in critical systems such as networked storage. Demands on these systems include not only ensuring
the availability of important data, but also efficient resource
sharing of the relatively expensive components.

Basically, if one of the systems goes down, other system will take over it and will run the application.
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