あとやっぱりサムスン(笑)だね HD204UIひでぇ > The above suggests that the disk sometimes discards a pending 64 sector write > command when a IDENTIFY DEVICE command is received. This data loss occurs > silently. There is no error message in kernel log, SMART Error log, > NCQ Command Error log page, or SATA Phy Event Counters log page. http://sourceforge.net/apps/trac/smartmontools/wiki/SamsungF4EGBadBlocks