Today, in a highly connected world where work and leisure are integrated into a single system, the reach of ransomware poses a serious risk to individual users . But it's also a major problem for corporations and even government agencies, which are the primary targets of ransomware operations. Attacks are constantly evolving and improving, employing more complex and covert technologies, making both defense and attack more difficult. For this reason, TerraMaster has been developing snapshot and TFSS data protection features within its TOS system.
Thanks to these advances, systems and files can be easily recovered to prevent data loss. It makes them resistant to malfunctions or hard drive corruption, human errors in shared processes, and even the aforementioned ransomware attacks.
Snapshots on TerraMaster Systems
The TerraMaster Snapshot feature is a crash recovery tool developed based on the BTRFS file system. It allows users to take snapshots of the state of shared folders, or iSCSI LUNs, and thus quickly restore damaged or locked data by taking advantage of file system features.
TerraMaster Snapshot is based on copy-on-write (COW), so snapshots can be created almost instantly and take up almost no space when first created. You can create up to 1.024 snapshots for each shared folder and up to 65.536 snapshots for the entire system.
The snapshot file resides in the same storage space as the subvolume and can be navigated like a normal directory, restoring a copy of the file exactly as it was when the snapshot was taken. Users can send snapshots as incremental backups to an external hard drive or remote storage system via SSH to enhance data security. With TFSS support , a snapshot of the entire file system of the TNAS device can be taken to prevent data loss due to erroneous operations or ransomware attacks.
Once TFSS is enabled, it will automatically take snapshots of all volumes on the TNAS device using the BTRFS file system. This is done without the need to manually configure the snapshot destination and storage location. TFSS snapshot files are stored in a hidden directory with variable names, and all snapshot files are stored in a special read-only format so that general system commands cannot modify or delete snapshot files.
