Time spent on data recovery

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No one actually tells you how long does it take. 
  • Trivial small-size case takes two hours. Let's say it is flash-based media (never a hard drive), less than 200GB.
  • Trivial medium size takes two days. That is, any type of drive with no RAID.
  • Trivial big case takes a week or more to recover. This means RAIDs upwards of 4TB.
The above estimations account for DIY operation, time needed to hurriedly source whatever parts may be needed, aseemble the setup as required, do recovery and copying.
However, the estimations do not account for possible mistakes and resets in the recovery. In a trial-and-error process,
  •  every error-and-restart cycle doubles processing time.
 

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