12.3.3 Failure in Multiple Logical Drives Simultaneously

If a physical drive fails in more than one logical drive at the same time (one failure per logical drive), and the logical drives have hot spares protecting them, the controller rebuilds the logical drives with these limitations:
  • A hot spare must be at least as big as the smallest physical drive in the array that it might replace.
  • Failed physical drives are replaced with hot spares in the order in which they failed. (The logical drive that includes the physical drive that failed first is rebuilt first, assuming an appropriate hot spare is available—see the previous bullet.)
Note: If the number of physical drive failures exceeds the number of hot spares, see Failed Physical Drive Not Protected by a Hot Spare.