ZFS is a file system and logical volume manager designed for high storage capacities and data integrity. Developed by Sun Microsystems, it combines the features of a file system and a volume manager, allowing users to manage large amounts of data efficiently. ZFS uses a unique approach called "copy-on-write," which ensures that data is never overwritten, reducing the risk of corruption. One of the key features of ZFS is its ability to create snapshots, which are read-only copies of the file system at a specific point in time. This allows users to easily recover data from previous states. Additionally, ZFS supports data compression and deduplication, optimizing storage space and improving performance.