What is the primary purpose of implementing RAID level 1 in a file server?

Implementing RAID level 1 primarily focuses on ensuring the availability of data. This level of RAID creates an exact mirror of a set of data across two or more hard drives. In the event that one drive fails, the data remains accessible on the other drive, thus maintaining continuous access to the information stored on the server. This redundancy is crucial for minimizing downtime and preventing data loss, which is imperative in a file server environment where data accessibility and integrity are vital for operations.

While performance improvements can be associated with certain RAID configurations, RAID 1 does not primarily enhance performance; its main function is data redundancy. User authentication and data confidentiality are not objectives of RAID configurations, as they relate to security measures designed to control access to systems and protect the data from unauthorized access rather than ensuring data availability itself.