Clustering – “ buzzwords”
Application Failover
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Detect service failures and failover to standby systems
Load Balancing
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Distribute service load over multiple systems
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Common for network based systems
Active/Passive
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Active node owns service, passive node is idle
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Failover requires “ hand-over” of resources to passive node
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Advantage: generally any application
Active/Active
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Multiple nodes are owning the service
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Requires typically data sharing
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Application needs active/active-support
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