sentences:  One of the characteristics of RAID 3 is that it generally cannot service multiple requests simultaneously, which happens because any single block of data will, by definition, be spread across all members of the set and will reside in the same physical location on each disk.Therefore, any I/O operation requires activity on every disk and usually requires synchronized spindles.This makes it suitable for applications that demand the highest transfer rates in long sequential reads and writes, for example uncompressed video editing.