ZFS (Zettabyte File System)
An advanced file system used in hosting for massive data storage, supporting snapshots, scalability, and built-in integrity checks.
ZFS, or Zettabyte File System, is an advanced file system and volume manager designed for enterprise-grade hosting environments that require maximum data integrity, scalability, and reliability. Originally developed by Sun Microsystems, ZFS offers features that go far beyond traditional file systems, including built-in data integrity verification, automatic error correction, efficient snapshots, data compression, and support for massive storage capacities measured in zettabytes. Its copy-on-write architecture ensures data is never overwritten in place, protecting against corruption and enabling instant snapshots that consume minimal space. ZFS continuously verifies data integrity using checksums and can automatically repair corrupted data when used with redundant storage configurations. Many hosting providers use ZFS for their storage infrastructure because it delivers exceptional reliability, simplifies storage management, and provides powerful features like instant cloning and efficient backups. For customers, ZFS-based hosting typically means better data protection, faster snapshot-based backups, and confidence that their files are stored on a robust, self-healing storage system.