...an idea just occured to me - can there be a filesystem, where identical blocks are shared between files... E.g., new files are created anew, but copying files internally only creates smth like a hard-link, and then some sort of COW is done only on modified blocks... Eh? Does anything like that already exist? Guennadi --------------------------------- Guennadi Liakhovetski, Ph.D. DSA Daten- und Systemtechnik GmbH Pascalstr. 28 D-52076 Aachen Germany -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ IRC Channel: irc.openprojects.net / #kernelnewbies Web Page: http://www.kernelnewbies.org/