Nowadays, global ransomware poses a serious risk to individual users, corporate organizations, and even government agencies. They continue to evolve and improve, adopting more complex and covert technologies, making defense and attack more difficult. TerraMaster, a professional brand that focuses on providing innovative storage products for homes and businesses provided users with powerful data protection functions snapshot and TFSS in the TOS system, which can be easily recovered to avoid data loss, whether it is due to operation errors or hard disk damage, and even ransomware attacks.

TerraMaster Snapshot is a disaster recovery tool developed based on the BTRFS file system. Take snapshots of shared folders or iSCSI LUNs and quickly restore data after a disaster by taking advantage of file system features. TerraMaster Snapshot is based on COW (copy-on-write), so snapshots can be created almost instantaneously, and take up almost no space when they are first created. It can create up to 1,024 snapshots for each shared folder and up to 65,536 snapshots for the entire system.