Synchronizing Updates Across Cluster Filesystems

A system comprising:

• a source server having a processing unit in communication with memory, wherein the source server is associated with a source filesystem;
• a functional unit in communication with the source server, the functional unit to:
• create one or more consistency points in a source filesystem, including create a first consistency point at a first point-in-time and a second consistency point at a second point-in-time, wherein each consistency point represents filesystem data and metadata at a point-in-time to establish a recovery point, and wherein the first consistency point and the second consistency point are any two consistency points;
• compare the first consistency point with the second consistency point to detect a directory change at the source filesystem, including the functional unit to identify at least one difference between the first and second consistency points;
• responsive to the detection of the directory change, identify a file level change, wherein the file level change is associated with an established directory at a target filesystem;
• establish a link from the source filesystem to the target filesystem;
• and
• update the established directory based on the file level change.

A computer program product comprising computer readable storage device having computer readable program code embodied therewith, the program code executable by a processor to:

• create one or more consistency points in a source filesystem, including create a first consistency point at a first point-in-time and a second consistency point at a second point-in-time, wherein each consistency point represents filesystem data and metadata at a point-in-time to establish a recovery point, and wherein the first consistency point and the second consistency point are any two consistency points;
• compare the first consistency point with the second consistency point to detect a directory change at the source filesystem, including the functional unit to identify at least one difference between the first and second consistency points;
• responsive to the detection of the directory change, identify a file level change, wherein the file level change is associated with an established directory at a target filesystem;
• establish a link from the source filesystem to the target filesystem;
• and
• update the established directory based on the file level change.