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Example
- N + K functioning modules: N active and K
spare
- No repair is permitted during the mission
- Any active module can be disconnected or replaced by a spare
- Transients arrive according to a Poisson process at two different
rates:
 1 and
0, depending
on whether or not the module has experienced failure in the past
- Permanent faults arrive according to a Poisson process with rate p
- One job at a time is served, and service rate on n processors is Cn
 ,
where < 1
- Jobs arrive according to a Poisson process with rate
and have a relative deadline of 
- Repertoire of recovery actions: retry, replace, disconnect.
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