Monday, October 11, 2004

CS444a : Principles of Dependable Computer Systems

I started to read all articles found in this Stanford course syllabus: CS444a : Principles of Dependable Computer Systems

The basics of dependability:
  • Dependability=RASS (Reliable, Available, Safe and Secure)
  • MTTF+MTTR=MTBF. avail. = MTTF/(MTTF+MTTR)
  • Dependability metrics considered in SLA (Service Level Agreement)
  • Heisenbug, Borhbug, Schrodinbug, Mandelbug
  • Failure categories: Permanent/intermitent/transient failure
  • Fail system behavior: fail-stop, byzantine, fail-fast
  • Dealing with faults: detection, diagnosis, isolation, repair, recovery
I need a way to remember: ACID: Atomicity, Consistency, Isolation, Durability

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