SSD smart https://unix.stackexchange.com/questions/106678/how-to-check-the-life-left-in-ssd-or-the-mediums-wear-level plextor PX-G128M6e 241 (0xF1) Total_LBAs_Written -> 32MiB書込みごとに +1インクリメント http://lab.mitty.jp/trac/lab/wiki/…