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The Volume Shadow Copy Service (VSS) writer has been added as an integral component of the c-treeACE Server for Windows. This component is supplied as a Windows dynamic link library (c-treeACEVSSWriter.dll) and can be optionally loaded by the c-treeACE Server at startup.
The Volume Shadow Service is a Microsoft technology built into Microsoft Windows operating systems starting from Microsoft Windows XP and later that allows applications to access a “point-in-time” snapshot of a logical drive. This service allows taking manual or automatic backup copies or “snapshots” of data. Snapshots have two primary purposes: they allow the creation of consistent backups of a volume, ensuring that the contents cannot change while the backup is being made; and they avoid problems with file locking. By creating a read-only copy of the volume, backup programs are able to access every file without interfering with other programs writing to those same files.
c-treeACE Server provides support for VSS through its VSS writer, which controls how c-treeACE data is set to a consistent state at the beginning of a VSS operation and maintain that consistency throughout the process.
