Abstract: A method of replicating a source file system on a storage system, the method including: utilising a changelog operable to store sequentially a data record corresponding to a modification of a source file system by a storage request; specifying a first data record of the changelog at a first time; initiating a scan of the directory inodes of the source file system at the first time; scanning the directory inodes; completing the scan at a second time later than the first time; specifying a second data record of the changelog at the second time; storing, in a database, information corresponding to the scanned directory inodes; updating the database with sequential data records from the first data record to the second data record of the changelog; and building, on a computer system, a replica target file system based on the database.

Abstract: A method of replicating a source file system on a storage system, the method including: utilising a changelog operable to store sequentially a data record corresponding to a modification of a source file system by a storage request; specifying a first data record of the changelog at a first time; initiating a scan of the directory inodes of the source file system at the first time; scanning the directory inodes; completing the scan at a second time later than the first time; specifying a second data record of the changelog at the second time; storing, in a database, information corresponding to the scanned directory inodes; updating the database with sequential data records from the first data record to the second data record of the changelog; and building, on a computer system, a replica target file system based on the database.

Abstract: There is provided a method of, and apparatus for, enabling data recovery on a data storage resource. The resource includes a file system having a file system structure component for data storage management. In use, a storage request operable to modify the file system is received, processed and the file system structure component updated based on the storage request. Subsequently, a data record recording the modification by the storage request is generated and used to update an auxiliary file system structure component separate from the file system structure component. By providing such a method, a file system structure can be recreated and recovered quickly after a failure or error utilising the auxiliary file system structure component. This enables a file system to be reconstructed much faster than conventional approaches because the auxiliary file system structure has already been created.