Technical Perspectivedisk Array Models For Automatingrnstorage Management

摘要

Large disk arrays are everywhere, even if we, as end users of computer services, rarely notice them. When we shop at an Internet retailer, the product and account data come from a disk array in a data center. Our email, banking, payroll, insurance, and tax data all reside on disk arrays. The hardware used is typically diverse, obtained from multiple vendors at different times. Depending upon an application's requirements for throughput, response time, availability, and reliability, its data may be distributed across disk arrays and even across multiple data centers and made resilient to failures through replication or the addition of error correction codes.