Failure in Multiple Arrays Simultaneously

If there's a disk drive failure in more than one array at the same time (one failure per array), and the arrays have hot spares protecting them, the controller rebuilds the arrays with these limitations:

  • A hot spare must be of equal or greater size than the failed disk drive it's replacing.
  • Failed disk drives are replaced with hot spares in the order in which they failed. (The array that includes the disk drive that failed first is rebuilt first, assuming an appropriate hot spare is available—see bullet above.)

If there are more disk drive failures than hot spares, see Failed Disk Drive Not Protected by a Hot Spare.

If copyback is enabled, data is moved back to its original location once the controller detects that the failed drive has been replaced.

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