Structuring for parallel use of resources

Because workloads require multiple system resources to run, take advantage of the fact that the resources are separate and can be consumed in parallel.

For example, the operating system read-ahead algorithm detects the fact that a program is accessing a file sequentially and schedules additional sequential reads to be done in parallel with the application's processing of the previous data. Parallelism applies to system management as well. For example, if an application accesses two or more files at the same time, adding an additional disk drive might improve the disk-I/O rate if the files that are accessed at the same time are placed on different drives.