Which RAID level uses two drives to create a mirror image of data?

RAID 1 utilizes two drives to create a mirror image of data, ensuring that an identical copy of the data is stored on both drives. This configuration provides redundancy, meaning that if one drive fails, the data remains accessible from the other drive, thereby increasing data reliability and availability.

In RAID 1, data is written simultaneously to both drives in the array, making it straightforward and effective for data protection. This mirroring process not only safeguards against hardware failure but also allows for improved read performance since multiple drives can be used to serve read requests. Hence, choosing RAID 1 is advantageous for critical systems that require uninterrupted access to data.