Companion presentation for NILFS report done at TokyoDebian meetup (2010/11/20). Report itself is at: http://www.slideshare.net/tyamadajp/nilfs-usagereportandcomparisonattokyodebian Full report, including report of other filesystem done by other people is at: http://tokyodebian.alioth.debian.org/pdf/debianmeetingresume201011.pdf