SYSTEM AND METHOD TO COORDINATE DATA STORAGE DEVICE MANAGEMENT OPERATIONS IN A DATA STORAGE SUBSYSTEM

摘要

The invention provides system, apparatus and procedure to coordinate the data management operations in a data storage system. The data management operations are performed on data stripes, which are distributed across a plurality of disk drives. According to the procedural aspect of the invention a task director first executes a first operation and a second operation of the data management operations at a concurrent time. The first operation is a different operation than the second operation. The first operation includes a first set of tasks and the second operation includes a second set of tasks. The execution of each task of the first and second sets of tasks are directed by the task director.