DualFS

Posted Mar 23, 2007 22:04 UTC (Fri) by giraffedata (guest, #1954)
Parent article: The 2007 Linux Storage and File Systems Workshop

DualFS is a file system by Juan Piernas that separates data and meta data into separate file systems.

That's separate devices, not separate file systems. A single DualFS file system has both metadata and file data, and the innovation is that they are stored in such a way that access to one doesn't interfere with access to the other.

And it's worth noting that while ideally these devices would not share a head, the experiments reported are done with the devices being partitions of a single physical device and still show improvement.