What is a significant benefit of using a disk array for data storage?

Using a disk array for data storage provides a significant benefit by improving performance and enhancing fault tolerance. Disk arrays typically consist of multiple disks that work together as a unified storage solution. By distributing data across multiple disks, they can leverage parallel processing, allowing for faster data read and write operations. This leads to improved performance, especially for applications that require quick access to large amounts of data.

Furthermore, disk arrays are often designed with built-in redundancy through technologies such as RAID (Redundant Array of Independent Disks). This redundancy ensures that if one disk fails, the data remains accessible and can be reconstructed from the other disks in the array. This fault tolerance is crucial in maintaining data integrity and availability, minimizing the risk of data loss.

The other options do not accurately reflect significant benefits of disk arrays. While deletion of data can be a feature of any storage system, it is not a primary benefit of using a disk array. Automatic compression of stored data might be offered by some storage systems, but it is not a standard feature of disk arrays. Similarly, although disk arrays may alleviate some backup requirements, they do not generally eliminate the need for comprehensive backup solutions, which are essential for protecting against data loss from other threats beyond hardware failure.