On Wed, 19 Mar 2008, David Chinner wrote: > Yup - the use of a sparse file avoids the need for an internal map. > But that does't really work for piping the output, though. > xfs_metadump is probably more similar to bdar in that respect, but it > doesn't copy data.... Ntfsclone also efficiently copies data or metadata to dense, mountable sparse or a device file since 2003. It was an important factor to get reliable NTFS write support sooner because NTFS is slightly bigger than the other file systems (the size of the Microsoft NTFS driver is almost like the sum of the 60 Linux file systems altogether) and we needed to handle the heavily used (meta)data images efficiently during development and quality assurance. Szaka -- NTFS-3G: http://ntfs-3g.org -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html