Saket Sinha: > Several implementations of union file system fusion were evaluated. > The results of the evaluation is shown at the below link- > http://www.4shared.com/download/7IgHqn4tce/1_online.png As far as I know, aufs supports NFS branches and also you can export aufs via NFS. For example, http://sourceforge.net/p/aufs/mailman/message/20639513/ > 2. if only the file metadata are modified, then do not > copy the whole file on the read-write files system but > only the metadata (stored with a file named as the file > itself prefixed by '.me.') Once I have considered such approach to implement it in aufs. But I don't think it a good idea to store metadata in multiple places, one in the original file and the other is in .me. file. For such purpose, a "block device level union" (instead of filesystem level union) may be an option for you, such as "dm snapshot". J. R. Okajima -- 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
