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Failover Myths Debunked

Michael Nygard clarifies some of the myths related to failover setups and the complicated live of ops teams:

It’s worth considering each of these states and asking yourself the following questions:

  • Is the state transition triggered automatically or manually?
  • Is the transition step executed by hand or through automation?
  • How long will the state transition take?
  • How can I tell whether it worked or not?
  • How can I recover if it didn’t work?

via: http://www.michaelnygard.com/blog/2010/04/failover_messy_realities.html