The backup proxy reads new data from the file share.
If any files or folders of the file share have changed since the previous backup session run, the cache repository instructs the backup proxy to start reading changed data from the source file share. When the cache repository receives a new CRC tree structure from the proxy, it compares it with the CRC tree created during the previous run of the backup session. Veeam Backup & Replication performs file share backup to the backup storage in the following way: