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CloudServices/Principles: Difference between revisions
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→No SPOFs
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* redundant multi-hot & round-robin systems are preferred over cold fail-over systems | * redundant multi-hot & round-robin systems are preferred over cold fail-over systems | ||
* the single host is the smallest unit of allowed (and expected) failure | * the single host is the smallest unit of allowed (and expected) failure | ||
* solutions for redundancy are evaluated purely on merit -- not hardware vs software or by vendor/project | * solutions for redundancy are evaluated purely on merit -- not hardware vs software or by vendor / project | ||
* reduced MTBF (mean time between failure) is evaluated and a key driver of system choices | * reduced MTBF (mean time between failure) is evaluated and a key driver of system choices | ||