асоциативен масив(A data structure that carries out a mathematical calculation on a field identifier to determine where a data element in a large table or index is located)
масив от взаимозаменяеми независими дискове(A mechanism for storing identical data on multiple disks for redundancy, improved performance, and increased mean time between failures (MTBF). RAID provides fault tolerance and appears to the operating system as a single logical drive)