Disk as Bottleneck I
Processes are often Disk-Bound, i.e., the network and the CPU often have to wait inordinate lengths of time for the disk to transmit data.
Solution 1: Multiprogramming (CPU works on other jobs while waiting for the disk)
Solution 2: Stripping: splitting the parts of a file on several different drives, then letting the separate drives deliver parts of the file to the network simultaneously ==> Parallelism