TerraMaster Official Forum

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. In TOS 5, Snapshot has been redesigned to add more features and improve the user experience.


Filesystem level snapshots
TerraMaster Snapshot is a snapshot tool based on the BTRFS file system. The Btrfs file system introduces advanced storage technology and snapshot technology to provide flexible and efficient data protection and recovery tools while improving high data integrity.


Save your time and space
The TerraMaster Snapshot snapshot function is based on COW (copy-on-write), so snapshots can be created almost instantaneously, and they take up almost no space when they are first created, greatly increasing the utilization of space and time. It can be said to be a perfect snapshot solution.


Virtualization disaster recovery
TerraMaster Snapshot can provide a good disaster recovery solution for virtualized storage space by taking snapshots of shared folders or iSCSI LUNs, whether it is virtualized storage through NFS or iSCSI.


Higher snapshot performance
TerraMaster Snapshot can create up to 1,024 snapshots for each shared folder and up to 65,536 snapshots for the entire system, providing you with adjustable, storage-saving data protection capabilities to meet stringent snapshot performance requirements.


Efficient snapshot rollback
The snapshot file resides in the same storage space as the subvolume, and you can browse it like a normal directory and restore a copy of the file as it was when the snapshot was taken. TerraMaster Snapshot arranges snapshots through a timeline, combined with an intuitive graphical interface, when you need to restore a snapshot file, you only need a few mouse clicks to roll back the snapshot to the version you need.


Remote incremental backup
Generating snapshots on the same storage space as the snapshot subvolume is not an ideal backup strategy, and if the hard disk fails, the snapshot will be lost. TerraMaster Snapshot can send snapshot copies as incremental backups to an external hard drive or to a remote storage system via SSH (the backup destination also needs to use the BTRFS file system) for increased data security.

Hi, what is the difference to TFSS (TerraMaster File System Snapshot): viewtopic.php?f=87&t=3194

Thank you
Norman

TFSS is a snapshot special designed for your all fils system on your TNAS so that all your btrfs file systems can be protected, that means data on your all volumes can be protected, instead, Snapshot is for your shared folder snapshot only.

Got it. Thank you!

I'm not sure it's a good idea to categorise messages like "Exec snapshot task success (SnapShot)" in the Error logging level. Shouldn't this be Info?

--
Chris

Technically there's an excuse for including Success in log level Error: the process has reported error 0.

But for us humans, error 0 is not an error and as logs are human-readable accounts of what's going on with internal operations, clearly success reports don't belong in the logs Error level.

This needs to be escalated to the devs.

--
Chris

Thank you for your report, we will correct it if there is something wrong there.