¸¶ºî¤ª¤è¤Ó Copyright © 1995, Wilko Bulte <wilko@yedi.iaf.nl>. 24 September 1995.
Ìõ: ÉÚÅÄ ½ÅÀ® <ts@icu.ac.jp> 2 September 1996.
ESDI¤È¤Ï Enhanced Small Device Interface¤Îά¸ì¤Ç¤¹. ¤³¤Îµ»½Ñ¤Ï, ÆëÀ÷¤ß ¿¼¤¤ ST506¤ä ST412¤È¤¤¤Ã¤¿¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Ë´ð¤Å¤¯¤â¤Î¤Ç¤¢¤ê, À¤³¦½é¤ÎÉá µÚ·¿ 5.25¥¤¥ó¥Á¤Î¥¦¥£¥ó¥Á¥§¥¹¥¿¥Ç¥£¥¹¥¯¤ò¤¤Ã¤¿Seagate Technology¼Ò¤Ë ¤è¤Ã¤ÆºÇ½é¤Ëºî¤é¤ì¤Þ¤·¤¿.
ESDI¤Î E¤Ï³ÈÄ¥ (Enhanced) ¤òɽ¤·¤Æ¤ª¤ê, ¼ÂºÝ¤½¤Î¤È¤ª¤ê¤Ç¤¹. ¤Þ¤º, ¥¤¥ó ¥¿¥Õ¥§¡¼¥¹¤Î®Å٤Ϯ¤¯, 10 ¤Ê¤¤¤· 15M¥Ó¥Ã¥È/ÉäǤ¢¤ê, ST412¥¤¥ó¥¿¥Õ¥§¡¼ ¥¹¤ËÀܳ¤·¤¿¥É¥é¥¤¥Ö¤Î 5M¥Ó¥Ã¥È/Éäè¤ê¤â¹â®¤Ç¤¹. ¤Þ¤¿, ¾å°Ì¥ì¥Ù¥ë¤Î¥³ ¥Þ¥ó¥É¤¬¤¤¤¯¤Ä¤«Äɲäµ¤ì¤Æ, ¥ª¥Ú¥ì¡¼¥Æ¥£¥ó¥°¥·¥¹¥Æ¥à¥ì¥Ù¥ë¤Î¥É¥é¥¤¥Ðºî À®¼Ô¤Ë¤È¤Ã¤Æ, ESDI¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Ï¤¢¤ëÄøÅÙ¥¤¥ó¥Æ¥ê¥¸¥§¥ó¥È¤Ê¤â¤Î¤È¤Ê¤ê ¤Þ¤·¤¿. ¤¿¤À¤· SCSI¤Û¤É¤Ë¥¤¥ó¥Æ¥ê¥¸¥§¥ó¥È¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó. ESDI¤Ï ANSI¤¬ ɸ½à²½¤ò¤ª¤³¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
¥È¥é¥Ã¥¯¤´¤È¤Î¥»¥¯¥¿¿ô¤òÁý¤ä¤¹¤³¤È¤Ç, ESDI¥É¥é¥¤¥Ö¤Îµ²±ÍÆÎ̤ϰú¤¾å¤² ¤é¤ì¤Þ¤·¤¿. Ä̾ï, ¥È¥é¥Ã¥¯¤¢¤¿¤ê 35¥»¥¯¥¿¤Ç¤¹¤¬, º£¤Þ¤Ç¤ËÉ®¼Ô¤¬¤ß¤¿¥É ¥é¥¤¥Ö¤ÎÃæ¤ÇÂçÍÆÎ̤Τâ¤Î¤Ï, ¥È¥é¥Ã¥¯¤¢¤¿¤ê 54¥»¥¯¥¿¤â¤¢¤ê¤Þ¤·¤¿.
ESDI¤Ï IDE¤ä SCSI¤È¤¤¤Ã¤¿¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤ÎÉáµÚ¤Ë¤è¤Ã¤Æ¾Ã¤¨¤Ä¤Ä¤¢¤ê¤Þ¤¹ ¤¬, ̵ÎÁ¤¢¤ë¤¤¤Ïºß¸Ë½èʬ¤Î ³Ê°Â¤Ê¥É¥é¥¤¥Ö¤¬Æþ¼ê²Äǽ¤Ç¤¢¤ë¤³¤È¤ò ¹Í¤¨¤ë¤È, ¾¯¤Ê¤¤ (¤â¤·¤¯¤Ï¸½¾õ¤Î) ͽ»»¤ÇÇû¤é¤ì¤¿¥·¥¹¥Æ¥à¤Ë¤È¤Ã¤Æ, ESDI¥É¥é¥¤¥Ö¤Ï ÍýÁÛŪ¤Ç¤¹.
ESDI¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Ç¤Ï, ¥É¥é¥¤¥Ö¤´¤È¤Ë2¤Ä¤Î¥±¡¼¥Ö¥ë¤òÀܳ¤·¤Þ¤¹. Âè 1 ¤Î¥±¡¼¥Ö¥ë¤Ï34¥Ô¥ó¤Î¥Õ¥é¥Ã¥È¥±¡¼¥Ö¥ë¥¨¥Ã¥¸¥³¥Í¥¯¥¿¤Ç, ¥³¥ó¥È¥í¡¼¥é¤È¥É ¥é¥¤¥Ö´Ö¤Î¥³¥Þ¥ó¥É¤ª¤è¤Ó¥¹¥Æ¡¼¥¿¥¹¤Î ξ¿®¹æ¤Î¤ä¤ê¤È¤ê¤Î¤¿¤á¤Î¤â¤Î¤Ç¤¹. ¥³¥Þ¥ó¥ÉÍÑ¥±¡¼¥Ö¥ë¤Ï, ¤¹¤Ù¤Æ¤Î ESDI¥É¥é¥¤¥Ö¤ò¥Ç¥¤¥¸¡¼¥Á¥§¡¼¥ó¤Ç·ë¤Ó ¤Þ¤¹¤«¤é, ¤¹¤Ù¤Æ¤Î¥É¥é¥¤¥Ö¤òÀܳ¤·¤¿¥Ð¥¹¤ò¹½À®¤¹¤ë¤³¤È¤Ë ¤Ê¤ê¤Þ¤¹.
Âè 2 ¤Î¥±¡¼¥Ö¥ë¤Ï 20 ¥Ô¥ó¤Î¥Õ¥é¥Ã¥È¥±¡¼¥Ö¥ë ¥¨¥Ã¥¸¥³¥Í¥¯¥¿¤Ç, ¥É¥é¥¤¥Ö¤Ø¤Î ¥Ç¡¼¥¿Æþ½ÐÎϤ˻Ȥ¤¤Þ¤¹. ¤³¤Î¥±¡¼¥Ö¥ë¤ÏÊü¼Í¾õ¤ËÀܳ¤·¤Þ¤¹¤«¤é, ¥É¥é¥¤¥Ö ¤´¤È¤Ë¥³¥ó¥È¥í¡¼¥é¤Ø¤ÎÀìÍÑÀܳ¤ò»ý¤Ä¤³¤È¤Ë ¤Ê¤ë¤ï¤±¤Ç¤¹.
É®¼Ô¤Î·Ð¸³¤Ë¤è¤ì¤Ð, PC¸þ¤± ESDI ¥³¥ó¥È¥í¡¼¥é¤Ë¤Ï, ¥³¥ó¥È¥í¡¼¥é¤¢¤¿¤êºÇ Âç 2 Âæ¤Þ¤Ç¤Î¥Ç¥Ð¥¤¥¹Àܳ¤¬²Äǽ¤È¤¤¤¦À©¸Â¤¬¤¢¤ê¤Þ¤·¤¿. ¤³¤ì¤Ï, ¥É¥é¥¤ ¥Ö¤Î¥¢¥É¥ì¥¹³ä¤êÅö¤Æ¤Î¤¿¤á¤Ë, ñ°ì¥Ó¥Ã¥È¤À¤±¤òÍѰդ·¤¿¤È¤¤¤¦ WD1003 ¤« ¤é»ý¤Á±Û¤µ¤ì¤¿¸ß´¹ (?) µ¡Ç½¤Ê¤Î¤À¤È»×¤ï¤ì¤Þ¤¹.
1ËܤΥ³¥Þ¥ó¥É¥±¡¼¥Ö¥ë¤Ë¤ÏºÇÂç¤Ç 7¤Ä¤Î¥Ç¥Ð¥¤¥¹¤È 1¤Ä¤Î¥³¥ó¥È¥í¡¼¥é¤òÀÜ Â³¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹. ¤É¤Î¥É¥é¥¤¥Ö¤ò¥³¥ó¥È¥í¡¼¥é¤¬¥¢¥É¥ì¥¹¤·¤Æ¤¤¤ë¤Î¤« ¤ò¸ÄÊ̤Ëǧ¼±¤Ç¤¤ë¤è¤¦¤Ë¤¹¤ë¤¿¤á¤Ë, ESDI¥Ç¥Ð¥¤¥¹¤Ï, ¥Ç¥Ð¥¤¥¹¥¢¥É¥ì¥¹¤ò ÀßÄꤹ¤ë¤¿¤á¤Î¥¸¥ã¥ó¥Ñ¤«¥¹¥¤¥Ã¥Á¤òÈ÷¤¨¤Æ¤¤¤Þ¤¹.
PC¸þ¤±¥³¥ó¥È¥í¡¼¥é¤Ç¤Ï, ºÇ½é¤Î¥É¥é¥¤¥Ö¤Ë¤Ï¥¢¥É¥ì¥¹0¤òÀßÄꤷ, Âè2ÈÖÌܤΠ¥Ç¥£¥¹¥¯¤Ø¤Ï¥¢¥É¥ì¥¹1¤òÀßÄꤷ¤Þ¤¹. ¤¤¤Ä¤âα°Õ¤¹¤Ù¤¤³¤È¤Ï, ¥Ç¥£¥¹¥¯¤´¤È¤Ë¸ÇͤΥ¢¥É¥ì¥¹¤òɬ¤ºÀßÄꤹ¤ë¤È¤¤¤¦¤³¤È¤Ç¤¹! ¤Ä¤Þ¤ê, ¥³¥ó ¥È¥í¡¼¥é¤¢¤¿¤êºÇÂç2Âæ¤Î¥É¥é¥¤¥Ö¤È¤¤¤¦¤è¤¦¤Ê PC¸þ¤±¤Î¤â¤Î¤Ç¤Ï, Âè1 ¥É¥é ¥¤¥Ö¤ÏÂè0È֥ɥ饤¥Ö¤Ç, Âè2¥É¥é¥¤¥Ö¤ÏÂè1È֥ɥ饤¥Ö¤À¤È¤¤¤¦¤³¤È¤Ç¤¹.
¥Ç¥¤¥¸¡¼¥Á¥§¡¼¥óÀܳÍÑ¥³¥Þ¥ó¥É¥±¡¼¥Ö¥ë (34¥Ô¥ó¤Î¥±¡¼¥Ö¥ë¤Ç¤¢¤ë¤³¤È¤ò³Ð ¤¨¤Æ¤¤¤Þ¤¹¤«? ) ¤Ç¤Ï, ºÇ¸å¤Î¥Á¥§¡¼¥óÀܳ¥É¥é¥¤¥Ö¤Ç¥¿¡¼¥ß¥Í¡¼¥È¤·¤Ê¤±¤ì ¤Ð¤Ê¤ê¤Þ¤»¤ó. ¤³¤Î¤¿¤á¤Ë, ESDI¥É¥é¥¤¥Ö¤Ë¤Ï¥¿¡¼¥ß¥Í¡¼¥ÈÍÑÄñ¹³¥Í¥Ã¥È¥ï¡¼ ¥¯¤¬ÉÕ°¤·¤Æ¤ª¤ê, ¥¿¡¼¥ß¥Í¡¼¥È¤¹¤ëɬÍפ¬¤Ê¤¤¤È¤¤Ë¤Ï¤½¤ÎÄñ¹³¤ò¥É¥é¥¤¥Ö ¤«¤é³°¤·¤¿¤ê, ¤Þ¤¿¤Ï¥¸¥ã¥ó¥Ñ¤Ç̵¸ú (disable) ¤Ë¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¤è¤¦¤Ë¤Ê¤Ã ¤Æ¤¤¤Þ¤¹.
¤·¤¿¤¬¤Ã¤Æ, ¤Ò¤È¤Ä¤Î¥É¥é¥¤¥Ö, ¤¹¤Ê¤ï¤Á¥³¥Þ¥ó¥É¥±¡¼¥Ö¥ë¤ÎºÇ½ªÃ¼¤Ë°ÌÃÖ¤¹ ¤ë¥É¥é¥¤¥Ö¤À¤±¤¬, ¤½¤Î¥¿¡¼¥ß¥Í¡¼¥ÈÍÑÄñ¹³¤ò͸ú (install¤Þ¤¿¤Ï enable) ¤Ë¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹. ¥³¥ó¥È¥í¡¼¥é¤Ï¼«Æ°Åª¤Ë¥³¥Þ¥ó¥É¥±¡¼¥Ö¥ë¤Î¤â¤¦°ìÊý ¤Îü¤Î¥¿¡¼¥ß¥Í¡¼¥ÈÍÑÄñ¹³¤ò͸ú¤Ë¤·¤Þ¤¹. ¤´Ãí°Õ¤¤¤¿¤À¤¤¿¤¤¤Î¤Ï, ¥³¥ó¥È ¥í¡¼¥é¤Ïɬ¤º¥³¥Þ¥ó¥É¥±¡¼¥Ö¥ë¤Î¤¤¤º¤ì¤«¤Î ü¤Ë°ÌÃÖ¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤º, ¤±¤Ã ¤·¤ÆÅÓÃæ¤Ë°ÌÃÖ¤¹¤ë¤è¤¦¤Ë¤·¤Æ¤Ï ¤¤¤±¤Ê¤¤ ¤È¤¤¤¦¤³¤È¤Ç¤¹.
ESDI ¤ò½é¤á¤ÆÆ°¤«¤¹¤è¤¦¤Ë¤¹¤ë¤³¤È¤¬, ¤É¤¦¤·¤Æ¤³¤¦¤âÂçÊѤʤ³¤È¤Ê¤Î¤Ç¤·¤ç ¤¦¤« ?
ESDI¥Ç¥£¥¹¥¯¤ò FreeBSD ¤Çư¤«¤½¤¦¤È»î¤ß¤¿¿Í¤¿¤Á¤¬·ãÎõ¤Ê¥¤¥é¥¤¥é¤òÊç¤é¤» ¤¿¤³¤È¤ÏÃΤé¤ì¤Æ¤¤¤Þ¤¹. º£¤Þ¤Ç¤Þ¤Ã¤¿¤¯ ESDI¤òÃΤé¤Ê¤¤¾ì¹ç¤Ë¤Ï, Ê£¿ô¤Î Í×°ø¤ÎÁȤ߹ç¤ï¤»¤¬°¤¯Æ¯¤¤¤Æ, ESDI¤Ø¤ÎÍý²ò¤ò˸¤²¤ë¤³¤È¤Ë¤Ê¤ë¤«¤â¤·¤ì¤Þ ¤»¤ó.
¤³¤Î¤³¤È¤Ï, ESDI¤È FreeBSD¤ÎÁȤ߹ç¤ï¤»¤ÏÁª¤ó¤Ç¤Ï¤¤¤±¤Ê¤¤¤È¤¤¤¦Â¯Àâ¤âÀ¸ ¤ß½Ð¤·¤Þ¤·¤¿. °Ê²¼¤ÎÀá¤Ë¤ª¤¤¤Æ, Í·ê¤Î¤¹¤Ù¤Æ¤È¤½¤Î²ò·èºö¤ò ½Ò¤Ù¤Æ¤ß¤è¤¦¤È»×¤¤¤Þ¤¹.
¤¹¤Ç¤Ë´Êñ¤Ë¾Ò²ð¤·¤¿¤è¤¦¤Ë, ESDI¤Ï2¼ïÎà¤Î®ÅÙ¤ò»ý¤Ã¤Æ¤¤¤Þ¤¹. µì¼°¤Î¥É ¥é¥¤¥Ö¤È¥³¥ó¥È¥í¡¼¥é¤Ï 10M¥Ó¥Ã¥È/ÉäΥǡ¼¥¿Å¾Á÷®Å٤Ǥ¹¤¬, ¿·¤·¤¤¤â¤Î ¤Ç¤Ï 15M¥Ó¥Ã¥È/Éä¬ÍøÍѤǤ¤Þ¤¹.
²¾¤Ë 10M¥Ó¥Ã¥È/ÉäΥ³¥ó¥È¥í¡¼¥é¤Ø 15M¥Ó¥Ã¥È/ÉäΥɥ饤¥Ö¤òÀܳ¤·¤¿¤è ¤¦¤Ê¾ì¹ç¤ËÌäÂ꤬À¸¤¸¤ë¤³¤È¤òͽÁÛ¤¹¤ë¤³¤È¤Ï´Êñ¤Ç¤¹. ¤·¤¿¤¬¤Ã¤ÆÉ¬¤º, ¥³ ¥ó¥È¥í¡¼¥é ¤ª¤è¤Ó ¥É¥é¥¤¥Ö¤Î¥Þ¥Ë¥å¥¢¥ë¤ò»²¾È¤·¤Æ, ¤½¤ì¤¾¤ì¤Î žÁ÷®ÅÙ¤¬ °ìÃפ·¤Æ¤¤¤ë¤«¤É¤¦¤«¤òÄ´¤Ù¤ë¤è¤¦¤Ë¤·¤Æ¤¯¤À¤µ¤¤.
¼çή¤Î ESDI¥É¥é¥¤¥Ö¤Ï, ¥È¥é¥Ã¥¯¤¢¤¿¤ê34¤Ê¤¤¤·36¸Ä¤Î¥»¥¯¥¿¤ò»ý¤Á¤Þ¤¹. ¤·¤«¤·ÂçÉôʬ¤Î (¸Å¤¤) ¥³¥ó¥È¥í¡¼¥é¤Ï36¸Ä°Ê¾å¤Î¥»¥¯¥¿¤ò°·¤¦¤³¤È¤¬¤Ç¤¤Þ ¤»¤ó.
¿·¤·¤¤ÂçÍÆÎ̤Υɥ饤¥Ö¤Ç¤Ï, ¥È¥é¥Ã¥¯¤´¤È¤Ë¤µ¤é¤Ë¿¤¯¤Î¿ô¤Î¥»¥¯¥¿¤ò»ý¤Ä ¤³¤È¤¬¤Ç¤¤Þ¤¹. ¤¿¤È¤¨¤ÐÉ®¼Ô¤Î 670MB¤Î¥É¥é¥¤¥Ö¤Ï, ¥È¥é¥Ã¥¯¤¢¤¿¤ê 54¥» ¥¯¥¿¤â»ý¤¿¤»¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹.
É®¼Ô¤Î¥³¥ó¥È¥í¡¼¥é¤Ï 54 ¥»¥¯¥¿¿ô¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤Þ¤»¤ó¤Ç¤·¤¿¤¬, ¥È¥é¥Ã¥¯ ¤¢¤¿¤ê 35 ¥»¥¯¥¿¤È¤¤¤¦ÀßÄê¤Ç, ÌäÂê¤Ê¤¯Æ°ºî¤·¤Þ¤·¤¿. ¤·¤«¤·, ¤³¤ì¤¬°ÕÌ£¤¹ ¤ë¤Î¤ÏÂçÎ̤Υǥ£¥¹¥¯ÍÆÎ̤ò¼º¤¦¤È¤¤¤¦¤³¤È¤Ç¤¹.
¤â¤¦°ìÅÙ, ¾Ü¤·¤¤¾ðÊó¤Ë¤Ä¤¤¤Æ¥Ï¡¼¥É¥¦¥§¥¢¤Î¥É¥¥å¥á¥ó¥È¤ò Ä´¤Ù¤Æ¤¯¤À¤µ¤¤. ¤³¤ÎÎã¤Î¤è¤¦¤Ê»ÅÍͤ«¤é¤Ï¤º¤ì¤¿ÀßÄê¤ò¤·¤¿¤È¤¤Ë¤Ï, ¤¦¤Þ¤¯Æ°¤¯¤«¤â¤·¤ì¤Þ ¤»¤ó¤¬, ư¤«¤Ê¤¤¤³¤È¤â¤¢¤ê¤Þ¤¹. ¤½¤Î¤è¤¦¤Ê¤È¤¤Ë¤Ï, Ê̤Τè¤ê¿¤¯¤Îµ¡Ç½ ¤ò¤â¤Ä¥³¥ó¥È¥í¡¼¥é¤Ç»î¤·¤Æ¤ß¤ë¤è¤¦¤Ë¤·¤Æ¤¯¤À¤µ¤¤.
¿¤¯¤Î ESDI¥É¥é¥¤¥Ö¤Ç¤Ï, ¥Ï¡¼¥É¥»¥¯¥¿¤Þ¤¿¤Ï¥½¥Õ¥È¥»¥¯¥¿¤Ë¤è¤ë½èÍý¤ò, ¥¸¥ã¥ó¥ÑÀßÄê¤Ç»ØÄꤹ¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹. ¥Ï¡¼¥É¥»¥¯¥¿¤È¤Ï, ¿·¤·¤¤¥»¥¯¥¿¤Î ³«»Ï°ÌÃ֤ˤª¤¤¤Æ, ESDI¥É¥é¥¤¥Ö¤Ë¥»¥¯¥¿¥Ñ¥ë¥¹ (sector pulse) ¤òȯÀ¸¤µ¤» ¤ë¤³¤È¤Ç¤¹. ¥³¥ó¥È¥í¡¼¥é¤Ï¤³¤Î¥Ñ¥ë¥¹¤òÍøÍѤ·¤Æ, ½ñ¤¹þ¤ß¤äÆÉ¤ß¼è¤ê¤Î¥¿ ¥¤¥ß¥ó¥°¤ò»Ø¼¨¤·¤Þ¤¹.
¥Ï¡¼¥É¥»¥¯¥¿¤Ç¤Ï¥»¥¯¥¿¤Î¥µ¥¤¥º¤òÁª¤Ö¤³¤È¤¬¤Ç¤¤Þ¤¹ (Ä̾ï¤Ï¥Õ¥©¡¼¥Þ¥Ã¥È ¸å¥»¥¯¥¿¤¢¤¿¤ê256, 512, ¤ª¤è¤Ó1024¥Ð¥¤¥È). FreeBSD¤Ï512¥Ð¥¤¥È¤Î¥»¥¯¥¿ ¥µ¥¤¥º¤ò»È¤¤¤Þ¤¹. ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô¤Ï, Ʊ¤¸¤è¤¦¤ËÁªÂò¤ËÉý¤¬¤¢¤ê ¤Þ¤¹¤¬, ¥Õ¥©¡¼¥Þ¥Ã¥È¸å¤Î¥»¥¯¥¿¤Î¥Ð¥¤¥È¿ô¤Ï¤¹¤Ù¤ÆÆ±¤¸¤Ç¤¹. ¥»¥¯¥¿¤´¤È¤Î ̤¥Õ¥©¡¼¥Þ¥Ã¥È ¤Î¥Ð¥¤¥È¿ô¤Ï, ¥³¥ó¥È¥í¡¼¥é¤¬¤É¤ÎÄøÅÙ¤ÎÄ´À°ÍѤΠ¥Ð¥¤¥È¿ô¤òɬÍפȤ¹¤ë¤«¤Ë¤è¤Ã¤Æ°Û¤Ê¤ê¤Þ¤¹. ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô¤ò¿ ¤¯¤¹¤ì¤Ðµ²±ÍÆÎ̤ÏÁý¤¨¤Þ¤¹¤¬, ¤â¤·¥É¥é¥¤¥Ö¤«¤éÍ¿¤¨¤é¤ì¤ë¥Ð¥¤¥È¿ô¤è¤ê¤â ¿¤¯¤Î¤â¤Î¤ò¥³¥ó¥È¥í¡¼¥é¤¬É¬ÍפȤ¹¤ë¤Î¤Ç¤¢¤ì¤Ð, ÌäÂê¤òÀ¸¤¸¤ë¤³¤È¤¬¤¢¤ê ¤Þ¤¹.
¥½¥Õ¥È¥»¥¯¥¿¤Ç¤Ï, ¥³¥ó¥È¥í¡¼¥é¼«¿È¤¬ÆÉ¤ß½ñ¤¤Î»Ï¤Þ¤ê¤È½ª¤ê¤Î°ÌÃÖ¤ò·è¤á ¤Þ¤¹. ¤Ê¤ª, ESDI (É®¼Ô¤¬ÃΤêÆÀ¤¿¤â¤Î¤¹¤Ù¤Æ) ¤Ç¤Ï, ¥Ï¡¼¥É¥»¥¯¥¿¤¬¥Ç¥Õ¥© ¥ë¥È¤Î¤è¤¦¤Ç¤¹. ¥½¥Õ¥È¥»¥¯¥¿¤ò»î¤ß¤ëɬÍ×À¤Ï´¶¤¸¤¿¤³¤È¤¬¤¢¤ê¤Þ¤»¤ó.
Ä̾ï, FreeBSD¤ò¥¤¥ó¥¹¥È¡¼¥ë¤¹¤ë°ÊÁ°¤Ë, ¤Þ¤º¥»¥¯¥¿½èÍý¤ÎÀßÄê¤ò»î¤µ¤ì¤ë ¤³¤È¤ò¤ª¤¹¤¹¤á¤·¤Þ¤¹. ¤È¤¤¤¦¤Î¤â, ¥»¥¯¥¿½èÍý¤ÎÀßÄê¤òÊѤ¨¤ë¤¿¤Ó¤Ë, ʪÍý ¥Õ¥©¡¼¥Þ¥Ã¥È (low-level format) ¤ò¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¤«¤é¤Ç¤¹.
ESDI¥É¥é¥¤¥Ö¤Ï, »È¤¤»Ï¤á¤ëÁ°¤Ë, ʪÍý¥Õ¥©¡¼¥Þ¥Ã¥È¤ò¤ª¤³¤Ê¤¦É¬Íפ¬¤¢¤ê¤Þ¤¹. ¤â¤·¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô¤òÊѤ¨¤¿¤ê, ¥É¥é¥¤¥Ö¤ÎʪÍýŪ¤ÊÀßÃÖÊýË¡ (¿å Ê¿¤ä¿âľÊý¸þ) ¤òÊѤ¨¤¿¤È¤¤Ë¤Ï, ¤Õ¤¿¤¿¤Ó¥Õ¥©¡¼¥Þ¥Ã¥È¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹ ¤«¤é, ¤è¤¯¸¡Æ¤¤·¤¿¸å¤Ç¥Õ¥©¡¼¥Þ¥Ã¥È¤·¤Æ¤¯¤À¤µ¤¤. ¥Õ¥©¡¼¥Þ¥Ã¥È½èÍý¤Î½êÍ× »þ´Ö¤òû¤¯Í½ÁÛ¤·¤Æ¤Ï¤¤¤±¤Þ¤»¤ó. ÂçÍÆÎ̤Υǥ£¥¹¥¯¤Ç¤Ï¿ô»þ´Ö¤òÍפ·¤Þ¤¹.
ʪÍý¥Õ¥©¡¼¥Þ¥Ã¥È¤¬½ª¤ï¤Ã¤¿¤Ê¤é¤Ð, ¥µ¡¼¥Õ¥£¥¹¥¹¥¥ã¥ó (surface scan) ¤ò ¤ª¤³¤Ê¤¤, ¥Ð¥Ã¥É¥»¥¯¥¿¤Î¸¡½Ð¤È¥Õ¥é¥°¤Î½èÍý¤ò¤·¤Þ¤¹. ¤Û¤È¤ó¤É¤Î¥Ç¥£¥¹¥¯¤Ë¤Ï, ¥á¡¼¥«¤¬ºîÀ®¤·¤¿¥Ð¥Ã¥É¥Ö¥í¥Ã¥¯¥ê¥¹¥È¤ò µÏ¿¤·¤¿ÍÑ»æ¤Þ¤¿¤Ï¥¹¥Æ¥Ã¥«¡¼¤¬ÉÕ ¤¤¤Æ¤¤¤Þ¤¹. ¤µ¤é¤Ë, ¤Û¤È¤ó¤É¤Î¥Ç¥£¥¹¥¯Æâ¤Ë¤â¥Ð¥Ã¥É¥Ö¥í¥Ã¥¯¥ê¥¹¥È¤¬µÏ¿ ¤µ¤ì¤Æ¤¤¤Þ¤¹. ¥á¡¼¥«¤¬ºîÀ®¤·¤¿¥ê¥¹¥È¤òÍøÍѤ¹¤ë¤è¤¦¤Ë¤·¤Æ¤¯¤À¤µ¤¤. ¤³¤Î »þÅÀ¤ÇÉÔÎÉÉôʬ¤ò¥Þ¥Ã¥×¤·Ä¾¤¹Êý¤¬, FreeBSD¤Î¥¤¥ó¥¹¥È¡¼¥ë¸å¤Ë¤ª¤³¤Ê¤¦¤è¤ê¤â, ¤Ï¤ë¤«¤Ë´Êñ¤Ç¤¹.
ʪÍý¥Õ¥©¡¼¥Þ¥Ã¥È¥×¥í¥°¥é¥à¤Î¤Ê¤«¤Ç¤â, ¥È¥é¥Ã¥¯¤ÎÃæ¤Ë¤Ò¤È¤Ä¤Ç¤â¥Ð¥Ã¥É¥» ¥¯¥¿¤¬¤¢¤ì¤Ð, Ʊ¤¸¥È¥é¥Ã¥¯Æâ¤Î»Ä¤ê¤Î¤¹¤Ù¤Æ¤Î¥»¥¯¥¿¤òÉÔÎɤȤ¹¤ë¤è¤¦¤Ê¥× ¥í¥°¥é¥à¤¬¤¢¤ê¤Þ¤¹¤«¤é, ¤½¤Î¤è¤¦¤Ê¤â¤Î¤ÏÍøÍѤ·¤Ê¤¤¤è¤¦¤Ë¤·¤Æ¤¯¤À¤µ¤¤. ¥Ç¥£¥¹¥¯¥¹¥Ú¡¼¥¹¤ÎϲÈñ¤À¤±¤Ç¤Ê¤¯, ¤è¤ê½ÅÂç¤Ê bad144¤È´ØÏ¢¤·¤¿Èá·à¤Î¸¶ °ø¤Ë¤â¤Ê¤ë¤«¤é¤Ç¤¹ (bad144¤ÎÀá¤ò»²¾È¤Î¤³¤È).
¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤¬, ESDI¤À¤±¤Ë¸ÂÄꤵ¤ì¤¿ÌäÂê¤Ç¤Ï¤Ê¤¤¤Ë¤â¤«¤«¤ï¤é¤º, ½ÅÂç¤Êº¤Æñ¤Ë¤Ê¤ë¤³¤È¤¬¤¢¤ê¤Þ¤¹. ¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤Ë¤Ï¤¤¤¯¤Ä¤«¤Î¦Ì̤¬ ¤¢¤ê¤Þ¤¹. ¿¤¯¤Ë¶¦Ä̤ʤâ¤Î¤Ï, IBM PC/AT¤Î¥ª¥ê¥¸¥Ê¥ë¤ÎÀ߷פ˵¯°ø¤¹¤ë¥Ç¥£ ¥¹¥¯¥¸¥ª¥á¥È¥ê¤Ë´Ø¤¹¤ëÀ©¸Â¤ò, ¤¦¤Þ¤¯²óÈò¤¹¤ë¤è¤¦¤ÊÄ´À°¤ò»î¤ß¤ë¤â¤Î¤Ç¤¹ (IBM ¤Ë´¶¼Õ ! ).
¤Þ¤º¤Ï¤¸¤á¤Ë, 1024¥·¥ê¥ó¥À¤Ë´Ø¤¹¤ë (°) ̾¹â¤¤À©¸Â¤¬¤¢¤ê¤Þ¤¹. ¤¹¤Ê¤ï ¤Á, ¥Ö¡¼¥È²Äǽ¤Ê¥·¥¹¥Æ¥à¤Ë¤Ä¤¤¤Æ, ¥·¥¹¥Æ¥à´ØÏ¢¥Õ¥¡¥¤¥ë¤Ï (¥ª¥Ú¥ì¡¼¥Æ¥£ ¥ó¥°¥·¥¹¥Æ¥à¤¬¤É¤Î¤è¤¦¤Ê¤â¤Î¤Ç¤¢¤Ã¤Æ¤â) , ¥Ç¥£¥¹¥¯¤ÎÀèÆ¬Éôʬ¤Î 1024¥· ¥ê¥ó¥ÀÆâ¤Ë¤Ê¤±¤ì¤Ð¤¤¤±¤Ê¤¤, ¤È¤¤¤¦À©¸Â¤Ç¤¹. ¥·¥ê¥ó¥ÀÈÖ¹æ¤òɽ¤¹¤¿¤á¤Ë¤Ï 10¥Ó¥Ã¥È¤·¤«Í¿¤¨¤é¤ì¤Æ¤¤¤Þ¤»¤ó. ¥»¥¯¥¿¤ÎÁí¿ô¤Ë¤Ä¤¤¤Æ¤Ï, ¾å¸Â¤Ï 64 (0¤« ¤é 63) ¤Ç¤¹. ¤³¤Î1024¥·¥ê¥ó¥À¤ÎÀ©¸Â¤ò, 16¥Ø¥Ã¥É¤ÎÀ©¸Â (¤³¤ì¤â AT¤Î»ÅÍÍ ¤Ë¤è¤ë) ¤ÈÁȤ߹ç¤ï¤»¤ë¤È, ¤«¤Ê¤ê¸ÂÄꤵ¤ì¤¿¥Ç¥£¥¹¥¯ÍÆÎ̤·¤«ÍøÍѤǤ¤Þ¤» ¤ó.
¤³¤ÎÆñÅÀ¤ò²ò¾Ã¤¹¤ë¤¿¤á¤Ë, PC ¸þ¤± ESDI¥³¥ó¥È¥í¡¼¥é¤Î¥á¡¼¥«¤Ï, ¼«¼Ò¤Î¥³ ¥ó¥È¥í¡¼¥é¥Ü¡¼¥É¤Ø BIOS PROM³ÈÄ¥¤ò»Ü¤·¤Þ¤·¤¿. ¤³¤Î BIOS³ÈÄ¥¤ÎÆâÍÆ¤Ï, ¥Ö¡¼¥È»þ¤Î¥Ç¥£¥¹¥¯I/O¤ò (OS¤Ë¤è¤Ã¤Æ¤Ï ¤¹¤Ù¤Æ ¤Î¥Ç¥£¥¹¥¯I/O¤â) , ¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤òÍѤ¤¤Æ¤ª¤³¤Ê¤¦¤È¤¤¤¦¤â¤Î¤Ç¤¹. ¤¹¤Ê¤ï¤Á, ÂçÍÆÎ̤Υǥ£ ¥¹¥¯¤ò, ¤¢¤¿¤«¤â 32 ¥Ø¥Ã¥É¤«¤Ä¥È¥é¥Ã¥¯¤¢¤¿¤ê 64 ¥»¥¯¥¿¤Ç¤¢¤ë¤è¤¦¤Ê¥Ç¥Ð¥¤¥¹ ¤È¤·¤Æ OS¤ØÃΤ餻¤ë¤Î¤Ç¤¹. ¤³¤Î·ë²Ì, Áí¥·¥ê¥ó¥À¡¼¿ô¤Ï 1024¤è¤ê¤â¾¯¤Ê¤¯ ¤Ê¤ê¤Þ¤¹¤«¤é, ¾åµ¤ÎÆñÅÀ¤Ê¤É¤Ê¤«¤Ã¤¿¤â¤Î¤È¤·¤ÆÂçÍÆÎ̥ǥ£¥¹¥¯¤ò»È¤¦¤³¤È ¤¬¤Ç¤¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤¹. ¤Ê¤ª, ÃíÌܤ¤¤¿¤À¤¤¿¤¤¤³¤È¤Ï, FreeBSD¥«¡¼¥Í¥ë ¤Îµ¯Æ°°Ê¹ß, FreeBSD¤Ï¤³¤Î BIOS³ÈÄ¥µ¡Ç½¤ò»È¤ï¤Ê¤¤¤È¤¤¤¦¤³¤È¤Ç¤¹. ¾Ü¤·¤¯ ¤Ï¸å¤Û¤É¤´ÀâÌÀ¤¤¤¿¤·¤Þ¤¹.
¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤ÎÂè 2 ¤Î¸ºßÍýͳ¤Ï, ¿¤¯¤Îµì¤¤¥·¥¹¥Æ¥àBIOS¤¬, ¥È¥é¥Ã ¥¯¤¢¤¿¤ê 17 ¥»¥¯¥¿¤Î¥É¥é¥¤¥Ö¤À¤±¤·¤«°·¤¨¤Ê¤¤ (ST412 ¤È¤¤¤¦¸Å¤¤»ÅÍÍ) ¤«¤é, ¤È¤¤¤¦¤â¤Î¤Ç¤¹. Èæ³ÓŪ¿·¤·¤¤ BIOS¤ÏÄ̾ï, ¼«Í³¤ÊÃͤòÀßÄê¤Ç¤¤ë¥É¥é¥¤¥Ö ¥¿¥¤¥× (¿¤¯¤Î¾ì¹ç¥É¥é¥¤¥Ö¥¿¥¤¥×47) ¤ò»ý¤Ã¤Æ¤¤¤Þ¤¹.
Warning: ¤³¤Îʸ½ñ¤òÆÉ¤ß½ª¤¨¤é¤ì¤¿¸å¤Ç, ¤É¤Î¤è¤¦¤Ë¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤òÍøÍѤ¹ ¤ë¤Ë¤»¤è, ¤¼¤Ò¤´Î±°Õ¤¤¤¿¤À¤¤¿¤¤¤³¤È¤¬¤¢¤ê¤Þ¤¹. ¤â¤·Ê£¿ô¤Î OS¤ò¤Ò¤È¤Ä ¤Î¥Ç¥£¥¹¥¯¤Ë¥¤¥ó¥¹¥È¡¼¥ë¤¹¤ë¤È¤¤Ë¤Ï, ɬ¤ºÆ±¤¸¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤ò»È¤ï ¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó.
¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤Ë´Ø¤·¤Æ, É®¼Ô¤¬»ÈÍѤ·¤¿¥³¥ó¥È¥í¡¼¥é¤Ï, ¤Ò¤È¤Ä¤Î¥É¥é ¥¤¥Ö¤òÊ£¿ô¤Î¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤ËÏÀÍýŪ¤Ë ʬ¤±¤ë¤³¤È¤¬¤Ç¤¤ëµ¡Ç½¤ò BIOS ¤Î¥ª ¥×¥·¥ç¥ó¤È¤·¤Æ»ý¤Ã¤Æ¤¤¤Þ¤·¤¿ (¤³¤Î¤è¤¦¤ÊÀ½ÉʤϤ¤¤¯¤Ä¤«¤¢¤ë¤È»×¤ï¤ì¤ë). ¤·¤«¤·, ¤Ò¤È¤Ä¤Î¥É¥é¥¤¥Ö¤Ë¤Ï¤Ò¤È¤Ä¤Î¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤Ë¸ÂÄꤷ¤Þ¤·¤¿. ¤Ê¤¼ ¤Ê¤é, ¤³¤Î¥³¥ó¥È¥í¡¼¥é¤Ï¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¾ðÊó¤ò ¥Ç¥£¥¹¥¯¤Ø½ñ¤½Ð¤¹¤«¤é¤Ç¤¹. ¤Ä¤Þ¤ê, ÅŸ»¤òÆþ¤ì¤ë¤È, ¥³¥ó¥È¥í¡¼¥é¤Ï¤³¤Î¾ðÊó¤òÆÉ¤ß¼è¤ê, OS¤ËÂФ·¤Æ¥Ç¥£ ¥¹¥¯¤«¤éÆÉ¤ß¤È¤Ã¤¿¾ðÊó¤Ë´ð¤Å¤¯¥Ç¥Ð¥¤¥¹¤È¤·¤Æ ÃΤ餻¤ë¤«¤é¤Ç¤¹.
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Íýͳ¤Ï, »ÈÍÑÉÔ²Ä (bad) ¤«¤é »ÈÍѲÄǽ ¤Ø¤ÎÊÑ´¹¤ò¤ª¤³¤Ê¤¦ ¤Î¤¬ ESDI¥³¥ó¥È¥í¡¼¥é¾å¤Î BIOS¤À¤«¤é¤Ê¤Î¤Ç¤¹. FreeBSD¤Ï, ¿¿¤Î 32¥Ó¥Ã¥È ¤Î¥ª¥Ú¥ì¡¼¥Æ¥£¥ó¥°¥·¥¹¥Æ¥à¤Ç¤¢¤ë¤¿¤á¤Ë, ¥Ö¡¼¥È¸å¤Ë¤Ï BIOS¤ò»È¤¤¤Þ¤»¤ó. Âå¤ï¤ê¤Ë FreeBSD¤¬»È¤¦¤Î¤Ï, ¥Ï¡¼¥É¥¦¥§¥¢¤ÈľÀÜ¡ÖÂÐÏáפ¹¤ë¥Ç¥Ð¥¤¥¹¥É¥é ¥¤¥Ð¤È¤¤¤¦¤â¤Î¤Ç¤¹.
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Á°Àᤫ¤é»Ä¤µ¤ì¤¿ÌäÂ꤬¤¢¤ê¤Þ¤¹. ¤¹¤Ê¤ï¤Á, ¥³¥ó¥È¥í¡¼¥é¤Ë¤è¤ë¥Ð¥Ã¥É¥Ö¥í¥Ã ¥¯½èÍý¤ÏÍøÍѤǤ¤Ê¤¤¾õ¶·¤Ç¤¢¤ë¤Ë¤â¤«¤«¤ï¤é¤º, FreeBSD¤Î¥Õ¥¡¥¤¥ë¥·¥¹¥Æ ¥à¤¬ÁÛÄꤷ¤Æ¤¤¤ë¤Î¤Ï¤¢¤¯¤Þ¤Ç´°Á´Ìµ·ç¤Ê¥Ç¥£¥¹¥¯¤Ç¤¢¤ë, ¤È¤¤¤¦ÌäÂê¤Ç ¤¹. ¤³¤ì¤ò²ò¾Ã¤¹¤ë¤¿¤á¤Ë, FreeBSD¤Ï bad144 ¤È¤¤¤¦¥Ä¡¼¥ë¤òºÎÍÑ ¤·¤Æ¤¤¤Þ¤¹. ¤³¤Î bad144 (¤³¤Î̾Á°¤Ï DEC¼Ò¤Îɸ½à¤È¤Ê¤Ã¤¿¥Ð¥Ã¥É¥Ö¥í¥Ã¥¯ ½èÍý¤ËͳÍ褷¤Æ¤¤¤ë) ¤Ï, FreeBSD¤Î¥¹¥é¥¤¥¹¤´¤È¤Ë¥Ð¥Ã¥É¥Ö¥í¥Ã¥¯¤òÄ´¤Ù¤Þ ¤¹. ¥Ð¥Ã¥É¥Ö¥í¥Ã¥¯¤ò¸«¤Ä¤±½Ð¤¹¤È, bad144 ¤Ï½ý¤Ä¤¤¤¿¥Ö¥í¥Ã¥¯ÈÖ¹æ¤Ë¤è¤ë¥Æ¡¼ ¥Ö¥ë¤ò FreeBSD¥¹¥é¥¤¥¹¤ÎËöÈø¤Ø½ñ¤¹þ¤ß¤Þ¤¹.
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bad144 ¤Î»ÈÍѤˤè¤ê´Ù¤ë¤«¤â¤·¤ì¤Ê¤¤Í·ê¤¬¤¢¤ê¤Þ¤¹. ¤Þ¤º, ¤Ò¤È¤Ä¤Î¥¹ ¥é¥¤¥¹¤Ë¤Ï 126 ¸Ä°Ê¾å¤Î¥Ð¥Ã¥É¥»¥¯¥¿¤ò»ý¤Æ¤Þ¤»¤ó. ¤â¤·¥É¥é¥¤¥Ö¤Ë 126 ¸Ä°Ê¾å ¤Î¥Ð¥Ã¥É¥»¥¯¥¿¤¬¤¢¤Ã¤¿¤È¤¤Ë¤Ï, Ê£¿ô¤Î FreeBSD ¤Î¥¹¥é¥¤¥¹¤Ëʬ¤±¤Æ, ³Æ¥¹ ¥é¥¤¥¹¤Î¥Ð¥Ã¥É¥»¥¯¥¿¤¬ 126 ¸Ä°Ê²¼¤È¤Ê¤ë¤è¤¦¤Ë¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹. ¤¯¤ì¤° ¤ì¤â, ¤Ò¤È¤Ä¤Î¥È¥é¥Ã¥¯Æâ¤Ë¤¿¤Ã¤¿¤Ò¤È¤Ä¤Î·ç´Ù¥»¥¯¥¿¤¬ ¸«¤Ä¤«¤Ã¤¿¤À¤±¤Ç, ¤½¤Î¥È¥é¥Ã¥¯Æâ¥»¥¯¥¿ ¤¹¤Ù¤Æ ¤ò½ý¤Ä¤¤¤¿¤â¤Î¤È¤·¤ÆµÏ¿¤¹¤ë¤è¤¦ ¤ÊʪÍý¥Õ¥©¡¼¥Þ¥Ã¥È¥×¥í¥°¥é¥à¤ò»È¤ï¤Ê¤¤¤è¤¦¤Ë¤·¤Æ¤¯¤À¤µ¤¤. ´Êñ¤Ë¤ª²ò¤ê ¤¤¤¿¤À¤±¤ë¤È»×¤¤¤Þ¤¹¤¬, ¤³¤Î¤è¤¦¤ÊʪÍý¥Õ¥©¡¼¥Þ¥Ã¥È¤ò¤ª¤³¤Ê¤¨¤Ð, 126¸Ä¤ÎÀ© ¸Â¤Ïû»þ´Ö¤ÇãÀ®¤·¤Æ¤·¤Þ¤¤¤Þ¤¹.
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Note: ¤³¤ÎÀ©¸Â¤Ï root ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à ¤À¤± ¤¬1024¥·¥ê¥ó¥À¸Â³¦°ÊÆâ¤Ë¤¢¤ì¤Ð½½Ê¬¤È¤¤¤¦¤³¤È¤Ç¤Ï¤Ê¤¯, root¥·¥¹¥Æ¥à¤ò´Þ ¤ó¤À ¥¹¥é¥¤¥¹ Á´ÂΤ¬1024¥·¥ê¥ó¥À¸Â³¦°ÊÆâ¤Ë¤ª¤µ¤Þ¤Ã¤Æ¤¤¤ëɬÍ× ¤¬¤¢¤ê¤Þ¤¹.
ESDI¥Ç¥£¥¹¥¯¤ò°·¤¦¥É¥é¥¤¥Ð¤Ï, IDE¤ä ST412 MFM¥Ç¥£¥¹¥¯¤Ê¤É¤ÈƱ¤¸ wd ¥É¥é¥¤¥Ð¤Ç¤¹. ¤³¤Î wd ¥É¥é¥¤¥Ð¤Ï, ¤¹¤Ù¤Æ¤Î WD1003 ¸ß´¹¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Ë¤âÍøÍѤǤ¤ë¤Ï¤º¤Ç¤¹.
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¤â¤·ÀßÄꤷ¤è¤¦¤È¤·¤Æ¤¤¤ë¥Ï¡¼¥É¥¦¥§¥¢¤¬ ɸ½à°Ê³°¤Î³ä¤êÅö¤Æ¤ò¥µ¥Ý¡¼¥È¤·¤Æ ¤¤¤ì¤Ð, ŬÀÚ¤ÊÀßÄê¾ðÊó¤ò¥«¡¼¥Í¥ë¤Î¥³¥ó¥Õ¥£¥°¥ì¡¼¥·¥ç¥ó¥Õ¥¡¥¤¥ë¤Ë µ½Ò¤¹ ¤ë¤³¤È¤Ç, ¤³¤ÎÈóɸ½à³ä¤êÅö¤Æ¤òÍøÍѤǤ¤Þ¤¹. ¼¡¤Ë¥«¡¼¥Í¥ë¤Î¥³¥ó¥Õ¥£¥°¥ì¡¼ ¥·¥ç¥ó¥Õ¥¡¥¤¥ë¤ÎÎã¤ò¼¨¤·¤Þ¤¹ (¤³¤Î¥Õ¥¡¥¤¥ë¤¬¤¢¤ë¥Ç¥£¥ì¥¯¥È¥ê¤Ï /sys/i386/conf ¤Ç¤¢¤ë).
# First WD compatible controller controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr disk wd0 at wdc0 drive 0 disk wd1 at wdc0 drive 1 # Second WD compatible controller controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr disk wd2 at wdc1 drive 0 disk wd3 at wdc1 drive 1
É®¼Ô¤Ï, ACB-2320¤Ç¥³¥ó¥È¥í¡¼¥ë¤µ¤ì¤¿ ESDI¥Ç¥£¥¹¥¯¤Ø, FreeBSD¤ò¥¤¥ó¥¹¥È¡¼ ¥ë¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤·¤¿. ¤Ê¤ª, ¤³¤Î¥Ç¥£¥¹¥¯¤Ë¤Ï¾¤Î¥ª¥Ú¥ì¡¼¥Æ¥£¥ó¥°¥·¥¹ ¥Æ¥à¤ò¥¤¥ó¥¹¥È¡¼¥ë¤·¤Æ¤¤¤Þ¤»¤ó.
¥¤¥ó¥¹¥È¡¼¥ë¤¹¤ë¤¿¤á¤Ë, ¤Þ¤º, NEFMT.EXE (www.adaptec.com ¤«¤é ftp²Äǽ) ¤Ç¥Ç¥£¥¹¥¯¤òʪÍý¥Õ¥©¡¼¥Þ¥Ã¥È¤·, ¤«¤Ä¥È¥é¥Ã¥¯¤òÂåÂØ¥» ¥¯¥¿¤È¤È¤â¤Ë¥Õ¥©¡¼¥Þ¥Ã¥È¤¹¤ë¤«¤É¤¦¤«¤ÎÀßÌä¤Ë NO¤ÈÅú¤¨¤Þ¤·¤¿. ¤Þ¤¿ ACB-2320¤Î BIOS¤Ï»È¤ï¤Ê¤¤¤è¤¦¤ËÀßÄꤷ¤Þ¤·¤¿. ¤½¤·¤Æ¥·¥¹¥Æ¥à BIOS¤¬¥Ö¡¼ ¥È¤Ç¤¤ë¤è¤¦¤Ë, ¥·¥¹¥Æ¥à BIOS¤Î¼«Í³¤ËÀßÄê²Äǽ ¥ª¥×¥·¥ç¥ó¤ò»È¤¤¤Þ¤· ¤¿.
¼Â¤Ï, NEFMT.EXE¤ò»È¤¦°ÊÁ°¤Ë, ¤Þ¤º ACB-2320 ¤Î BIOS¤ËÁȤ߹þ¤Þ¤ì¤Æ¤¤¤ë¥Õ¥©¡¼ ¥Þ¥Ã¥È¥×¥í¥°¥é¥à¤Ç¥Ç¥£¥¹¥¯¤ò¥Õ¥©¡¼¥Þ¥Ã¥È¤·¤Æ¤ß¤Þ¤·¤¿¤¬, »È¤¨¤Ê¤¤¤³¤È¤¬ Ƚ¤ê¤Þ¤·¤¿. ¤Ê¤¼¤Ê¤é, ÂåÂØ¥»¥¯¥¿¤Î½èÍý¤ò¤ª¤³¤Ê¤ï¤Ê¤¤¤è¤¦¤Ë¤¹¤ë¥ª¥×¥·¥ç¥ó¤¬ ÍѰդµ¤ì¤Æ¤¤¤Ê¤¤¤«¤é¤Ç¤¹. ÂåÂØ¥»¥¯¥¿½èÍý¤ò¤ª¤³¤Ê¤¦¤è¤¦¤Ë¤¹¤ë¤È, FreeBSD¤Î ¥¤¥ó¥¹¥È¡¼¥ëºî¶È¤Ï bad144¤Î¼Â¹Ô¤ÎÃʳ¬¤Ç¼ºÇÔ¤·¤Þ¤·¤¿.
¤â¤· ACB-232xy ¤ò¤ª»ý¤Á¤Ç¤¢¤ì¤Ð, ¤½¤Î¥Ð¡¼¥¸¥ç¥óÈÖ¹æ¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤. ʸ»ú x ¤Ë¤Ï 0 ¤« 2 ¤¬Æþ¤ê¤Þ¤·¤Æ, ¥Ü¡¼¥É¾å¤Ë¥Õ¥í¥Ã¥Ô¡¼¥³¥ó¥È¥í¡¼¥é¤¬¤¢¤ë¤«¤É ¤¦¤«¤ò¸«Ê¬¤±¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹.
ʸ»ú y¤Ï¤µ¤é¤Ë¶½Ì£¿¼¤¤¤â¤Î¤Ç, ¥Ö¥é¥ó¥¯¤«, A-8¤«, ¤Þ¤¿¤Ï D¤Î¤¤¤º¤ì¤«¤Ç ¤¹. ¥Ö¥é¥ó¥¯¤Ï, ñ½ã¤Ê10M¥Ó¥Ã¥È/ÉäΥ³¥ó¥È¥í¡¼¥é¤Ç¤¢¤ë¤³¤È¤òɽ¤·¤Þ¤¹. A-8¤Ï, 15M¥Ó¥Ã¥È/ÉäΥ³¥ó¥È¥í¡¼¥é¤Ç, ¤«¤Ä 52¥»¥¯¥¿/¥È¥é¥Ã¥¯¤ò¥µ¥Ý¡¼¥È ¤·¤Æ¤¤¤ë¤â¤Î¤Ç¤¢¤ë¤³¤È¤òɽ¤·¤Þ¤¹. D¤Ï, 15M¥Ó¥Ã¥È/ÉäΥ³¥ó¥È¥í¡¼¥é¤Ç, ¤«¤Ä 36¥»¥¯¥¿/¥È¥é¥Ã¥¯°Ê¾å (52¥»¥¯¥¿¤â²Äǽ¤«?) ¤Î¥É¥é¥¤¥Ö¤ò¥µ¥Ý¡¼¥È¤· ¤Æ¤¤¤ë¤â¤Î¤Ç¤¢¤ë¤³¤È¤òɽ¤·¤Þ¤¹.
¤³¤Î¥³¥ó¥È¥í¡¼¥é¤Î¤¹¤Ù¤Æ¤Î¥Ð¡¼¥¸¥ç¥ó¤Ï¥¤¥ó¥¿¡¼¥ê¡¼¥ÖÈæ 1:1¤ËÂбþ¤·¤Æ¤¤ ¤ë¤Ï¤º¤Ç¤¹. FreeBSD¤Ï½¼Ê¬¹â®¤Ê¤Î¤Ç, ¤¼¤Ò 1:1¤È»ØÄꤷ¤Æ¤¯¤À¤µ¤¤.
É®¼Ô¤Ï, WD1007¤Ç¥³¥ó¥È¥í¡¼¥ë¤µ¤ì¤¿ ESDI¥Ç¥£¥¹¥¯¤Ø, FreeBSD¤ò¥¤¥ó¥¹¥È¡¼ ¥ë¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤·¤¿. Àµ³Î¤Ë¤Ï WD1007-WA2¤È¤¤¤¦¥³¥ó¥È¥í¡¼¥é¤Ç¤·¤¿. ¤³¤ì°Ê³°¤ÎÊ£¿ô¤Î¥Ð¡¼¥¸¥ç¥ó¤â WD1007¤Ë¤¢¤ê¤Þ¤¹.
ÍøÍѤǤ¤ë¤è¤¦¤Ë¤¹¤ë¤¿¤á¤Ë, ¥»¥¯¥¿¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤ÈWD1007¤Î BIOS¤È ¤ò»È¤ï¤Ê¤¤¤è¤¦¤ËÀßÄꤷ¤Þ¤·¤¿. ¤³¤ÎÀßÄê¤Î°ÕÌ£¤Ï, BIOS¤ËÁȤ߹þ¤Þ¤ì¤¿ÊªÍý ¥Õ¥©¡¼¥Þ¥Ã¥È¥×¥í¥°¥é¥à¤ò»È¤¨¤Ê¤¤¤è¤¦¤Ë¤·¤¿¤È¤¤¤¦¤³¤È¤Ç¤¹. Âå¤ï¤ê¤Ë, www.wdc.com¤«¤é WDFMT.EXE¤òÆþ¼ê¤·¤Æ, ¥Ç¥£¥¹¥¯¤ò¥Õ¥©¡¼¥Þ¥Ã¥È¤· ¤Þ¤·¤¿. °Ê¸å, ½çÄ´¤Ëư¤¤¤Æ¤¤¤Þ¤¹.
¥Í¥Ã¥È¤Ëή¤ì¤¿¤¤¤¯¤Ä¤«¤ÎÊó¹ð¤Ë¤è¤ì¤Ð, Ultrastor¤Î ESDI¥Ü¡¼¥É¤â FreeBSD ¤Çưºî¤¹¤ë¤è¤¦¤Ç¤¹. ¼ÂºÝ¤ÎÀßÄê¤Ë¤Ä¤¤¤Æ¤Î¾Ü¤·¤¤¾ðÊó¤Ï¤¢¤ê¤Þ¤»¤ó.
ËܳÊŪ¤Ë ESDI¤Î¥×¥í¥°¥é¥ß¥ó¥°¤ò·×²è¤·¤Æ¤¤¤ëÊý¤Ï, ¼¡¤Î¸ø¼°µ¬³Ê»ÅÍͽñ¤ò Æþ¼ê¤Ê¤µ¤ë¤³¤È¤ò¤ª¤¹¤¹¤á¤·¤Þ¤¹.
ºÇ¿·¤Î ANSI X3T10 °Ñ°÷²ñ¤Îʸ½ñ¤Ï¼¡¤Î¤â¤Î¤Ç¤¹¡§ Enhanced Small Device Interface (ESDI) [X3.170-1990/X3.170a-1991] [X3T10/792D Rev 11]
USENET¤Î¥Ë¥å¡¼¥¹¥°¥ë¡¼¥× comp.periphs ¤Ï, ¾Ü¤·¤¤¾ðÊó¤òÆÀ¤ë¤³¤È¤¬¤Ç¤¤ëÃíÌܤ¹¤Ù¤¤â¤Î¤Ç ¤¹.
World Wide Web (WWW) ¤â¤Þ¤¿ÊØÍø¤Ê¾ðÊ󸻤Ǥ¹. Adaptec¼Ò¤Î ESDI¥³¥ó¥È¥í¡¼ ¥é¤Ë¤Ä¤¤¤Æ¤Ï http://www.adaptec.com/ ¤ò»²¾È¤¯¤À¤µ¤¤. Western Digital ¼Ò¤Î¥³¥ó¥È¥í¡¼¥é¤Ë¤Ä¤¤¤Æ¤Ï http://www.wdc.com/ ¤ò»²¾È¤¯¤À¤µ¤¤.
Andrew Gordon»á¤è¤ê, ¥Æ¥¹¥ÈÍѤΠAdaptec 2320¥³¥ó¥È¥í¡¼¥é¤È ESDI¥Ç¥£¥¹ ¥¯¤òÁ÷¤Ã¤Æ¤¤¤¿¤À¤¤Þ¤·¤¿.
¸¶ºî:Wilko Bulte <wilko@yedi.iaf.nl>. July 6, 1996.
Ìõ: ÆâÀî ´î¾Ï <yoshiaki@kt.rim.or.jp>. 4 November 1996.
SCSI ¤Ï Small Computer Systems Interface (¾®µ¬ÌÏ¥³¥ó¥Ô¥å¡¼¥¿¥· ¥¹¥Æ¥à¥¤¥ó¥¿¥Õ¥§¡¼¥¹) ¤ÎƬʸ»ú¤ò¤È¤Ã¤¿¤â¤Î¤Ç¤¹. ¤³¤ì¤ÏANSIɸ½à¤Ç¥³¥ó¥Ô¥å¡¼¥¿¶È³¦¤Ë¤ª¤¤¤Æ¤ÏºÇ¤â¤è¤¯»È¤ï¤ì¤ëI/O ¥Ð¥¹¤Î°ì¤Ä¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹. SCSI¤Ï¥·¥å¥¬¡¼¥È¼Ò (¥ß¥Ë¥Õ¥í¥Ã¥Ô¡¼¥Ç¥£ ¥¹¥¯¤òÀ¤³¦¤ÇºÇ½é¤ËÈÎÇ䤷¤Þ¤·¤¿) ¤Î³«È¯¤·¤¿ SASI (Shugart Associates Standard Interface) ¥Ð¥¹¤¬¸µ¤Ë¤Ê¤Ã¤Æµ¬³Ê²½¤µ¤ì¤Þ¤·¤¿.
¤½¤Î¸å¤Î¶È³¦¤ÎÅØÎϤˤè¤ê, °Û¤Ê¤ë¥Ù¥ó¥À¤Î¥Ç¥Ð¥¤¥¹¤¬º®ºß¤·¤Æ»È¤¨ ¤ë¤è¤¦¤Ë¤è¤ê¸·Ì©¤Êµ¬³Ê¤Ø¤Èµ¬³Ê²½¤µ¤ì¤Þ¤·¤¿.¤³¤Î·ë²Ì¤¬ ANSI¤Î SCSI-1µ¬³Ê¤È¤·¤ÆÇ§²Ä¤µ¤ì¤Þ¤·¤¿. SCSI-1¤Î»ÅÍÍ¤Ï (1985ǯ¤´¤í ¤Ëµ¬³Ê²½¤µ¤ì¤Þ¤·¤¿ ÌõÃí: SCSI-1¤ÎºÇ½ª°Æ·èÄê¤Ï1985ǯ, ANSI¤Îɸ½à µ¬³Ê¤È¤·¤Æ¤Îǧ²Ä¤Ï1986ǯ¤Ç¤¹) ¤¹¤Ç¤Ë¸½ºß¤Ç¤Ï»þÂåÃÙ¤ì¤Ç¤¹. ¸½ºß¤Îɸ½à¤Ï SCSI-2 (¤µ¤é¤Ë¾Ü¤·¤¤¾ðÊó ¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤) ¤Ç, SCSI-3¤Ø°Ü¹Ô¤·¤Æ¤¤¤¯¤Ç¤·¤ç¤¦.
ʪÍýŪ¤ÊÁê¸ßÀܳ¤Îµ¬³Ê¤Ë²Ã¤¨¤Æ, SCSI¤Ç¤Ï¥Ç¥£¥¹¥¯¥É¥é¥¤¥Ö¤ËÉԲķç¤Ê ÏÀÍýŪ¤Êµ¬³Ê (¥³¥Þ¥ó¥É¥»¥Ã¥È) ¤âÄêµÁ¤·¤Æ¤¤¤Þ¤¹. ¤³¤Îµ¬³Ê¤Ïɸ½à¥³¥Þ¥ó¥É¥»¥Ã¥È (CCS : Common Command Set) ¤È¸Æ¤Ð¤ì, ANSI¤ÎSCSI-1¤È¤Û¤ÜƱ»þ´ü¤ËÀ©Äꤵ¤ì¤Þ¤·¤¿. SCSI-2¤Ë¤Ï (²þÄꤵ¤ì¤¿) CCS¤¬µ¬³Ê¤Î°ìÉô¤È¤·¤ÆÁȤ߹þ¤Þ¤ì¤Þ¤·¤¿. ¥³¥Þ¥ó¥É¤Ï¥Ç¥Ð¥¤¥¹¤Î ¼ïÎà¤Ë¤è¤Ã¤ÆÊѤï¤ê¤Þ¤¹. Î㤨¤Ð¥¹¥¥ã¥Ê¤Ç¤Ï Write¥³¥Þ¥ó¥É¤Ï°ÕÌ£¤¬ ¤¢¤ê¤Þ¤»¤ó.
SCSI¥Ð¥¹ ¤Ï¿¤¯¤Î¼ïÎब¤¢¤ë¥Ñ¥é¥ì¥ë¥Ð¥¹¤Ç¤¹. ºÇ¤â¸Å¤¯, ºÇ¤âÍøÍѤµ¤ì¤Æ¤¤¤ë¤Î¤¬ 8 bit Éý, ¥·¥ó¥°¥ë¥¨¥ó¥É (ÉÔÊ¿¹Õ) ¿®¹æ, 50Àþ¤Î¿®¹æÀþ¤Î¥Ð¥¹¤Ç¤¹. (¤â¤·¥·¥ó¥°¥ë¥¨¥ó¥É¤Î°ÕÌ£¤¬Ê¬¤«¤é¤Ê¤¯¤Æ¤âµ¤¤Ë¤¹¤ë¤³ ¤È¤Ï¤¢¤ê¤Þ¤»¤ó. ¤³¤Î¥É¥¥å¥á¥ó¥È¤Ï¤Þ¤µ¤Ë¤½¤Î¤è¤¦¤Ê¿Í¤¿¤Á¤Î¤¿¤á ¤Î¤â¤Î¤Ç¤¹.) ¤è¤ê¿·¤·¤¤Àß·×¤Ç¤Ï 16 bitÉý¤ÇÊ¿¹Õ¿®¹æ¤Î¥Ð¥¹¤ò»È¤¤¤Þ¤¹. ¤³¤Î¾ì¹ç, žÁ÷®ÅÙ¤Ï 20Mbytes/second ¤Þ¤Ç, ¥±¡¼¥Ö¥ë¤ÎŤµ¤Ï 25m¤Þ¤Ç²Äǽ¤Ç¤¹. SCSI-2¤Ç¤ÏÄɲäΥ±¡¼¥Ö¥ë¤ò»È¤Ã¤¿ºÇÂç32 bit¤Î¥Ð¥¹Éý¤Þ¤Ç¤¬ ÄêµÁ¤µ¤ì¤Æ¤¤¤Þ¤¹. ºÇ¶áµÞ®¤ËÁý¤¨¤Æ¤¤¤ë¤â¤Î¤Ë Ultra SCSI (Fast-20¤È¤â¸Æ¤Ð¤ì¤Þ¤¹) ¤¬¤¢¤ê¤Þ¤¹. ¤Þ¤¿, SCSI-2¤Ë¤Ï Ultra2 (Fast-40¤È¤â¤¤¤¤¤Þ¤¹) ¤È¤¤¤¦¤â¤Î¤âÄêµÁ¤µ¤ì¤Æ¤¤¤Þ¤¹. Fast-20¤Ï1Éô֤Ë2000Ëü²ó¤ÎžÁ÷ (8bit¥Ð¥¹¤Ç20Mbyte/sec), Fast-40¤Ï1ÉÃ´Ö¤Ë 4000Ëü²ó¤ÎžÁ÷ (8bit¥Ð¥¹¤Ç 40Mbytes/sec) ¤ò¤ª¤³¤Ê¤¤¤Þ¤¹. ºÇ¶áÇä¤é¤ì¤Æ¤¤¤ë¥Ï¡¼¥É¥Ç¥£¥¹¥¯¤Î ¤Û¤È¤ó¤É¤ÏÉÔÊ¿¹Õ¿®¹æ¤Î Ultra SCSI (8¥Ó¥Ã¥È¤Þ¤¿¤Ï 16¥Ó¥Ã¥È) ¤Ç¤¹.
Note: ÌõÃí: ¤³¤³¤Ç¤ÏÅŵ¤Åª¤ÊÍѸì¤È¤·¤Æ¤ÏÊ¿¹Õ, ÉÔÊ¿¹Õ¤òÍѤ¤¤Æ, ¥Ð¥¹¤Î̾¾Î¤È¤·¤Æ¤Ï´ðËÜŪ¤Ë¤Ï¥·¥ó¥°¥ë¥¨¥ó¥É, ¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë¤È¤·¤Þ¤·¤¿.
¤â¤Á¤í¤ó SCSI¥Ð¥¹¤Ë¤Ï¥Ç¡¼¥¿¿®¹æ¤À¤±¤Ç¤Ï¤Ê¤¯, ¿¤¯¤Î¥³¥ó¥È¥í¡¼¥ë¿®¹æÀþ¤¬¤¢¤ê¤Þ¤¹. Ê£¿ô¤Î¥Ç¥Ð¥¤¥¹¤¬¥Ð¥¹¤ò¸úΨ¤è¤¯¶¦Í¤¹¤ë¤¿¤á¤Î Ê£»¨¤Ê¥×¥í¥È¥³¥ë¤âµ¬³Ê¤Î°ìÉô¤Ç¤¹. SCSI-2¤Ç¤Ï¥Ç¡¼¥¿¤Ï¾ï¤ËÆÈΩ¤·¤¿¥Ñ¥ê¥Æ¥£¿®¹æ¤ò »È¤Ã¤Æ¥Á¥§¥Ã¥¯¤µ¤ì¤Þ¤¹. SCSI-2°ÊÁ°¤Ç¤Ï¥Ñ¥ê¥Æ¥£¤Ï¥ª¥×¥·¥ç¥ó¤Ç¤·¤¿.
SCSI-3¤Ç¤Ï¤µ¤é¤Ë¹â®¤Ê¥Ð¥¹¥¿¥¤¥×¤¬Æ³Æþ¤µ¤ì, ¤½¤ì¤È¶¦¤Ë¥±¡¼¥Ö¥ë¤ÎÀþ¿ô¤ò¸º¤é¤·, ¤è¤êºÇÂç¥Ð¥¹Ä¹¤ò¿¤Ð¤·¤¿¥·¥ê¥¢¥ëSCSI¤¬Æ³Æþ¤µ¤ì¤Þ¤¹. SSA¤ä Fiberchannel¤È¤¤¤Ã¤¿Ì¾Á°¤òʹ¤¤¤¿¤³¤È¤Ï¤¢¤ê¤Þ¤»¤ó¤«? ¥·¥ê¥¢¥ë¥Ð¥¹¤Ï¸½ºß¤Ç¤Ï¤Þ¤À¤¤¤º¤ì¤ÎÊý¼°¤âÉáµÚ¤·¤Æ¤¤¤Þ¤»¤ó (ÆÃ¤Ë°ìÈÌŪ¤Ê FreeBSD´Ä¶¤Ç¤Ï). ¤³¤Î¤¿¤á¥·¥ê¥¢¥ë¥Ð¥¹¥¿¥¤¥×¤Ë¤Ä¤¤¤Æ¤Ï¤³¤³¤Ç¤Ï ¤³¤ì°Ê¾å¤Ï¿¨¤ì¤Þ¤»¤ó.
º£¤Þ¤Ç¤Îµ½Ò¤«¤éÁÛÁü¤µ¤ì¤ë¤è¤¦¤Ë SCSI¥Ç¥Ð¥¤¥¹¤Ï¥¤¥ó¥Æ¥ê¥¸¥§¥ó¥È ¤Ç¤¹. ¤³¤ì¤Ï SCSI¤Îµ¬³Ê (¤³¤Îʸ½ñ¤Ï2¥¤¥ó¥Á°Ê¾å¤Î¸ü¤µ¤¬¤¢¤ê¤Þ¤¹) ¤ÈÀÚ¤êÎ¥¤¹¤³¤È¤Ï¤Ç¤¤Þ¤»¤ó. ¤³¤Î¤¿¤áÎ㤨¤Ð¥Ï¡¼¥É¥Ç¥£¥¹¥¯¤Ç¤ÏÆÃÄê¤Î¥Ö¥í¥Ã¥¯¤ò¤µ¤¹¤Î¤Ë ¥Ø¥Ã¥É/¥·¥ê¥ó¥À/¥»¥¯¥¿ ¤Ë¤è¤Ã¤Æ·è¤á¤ë¤Î¤Ç¤Ï¤Ê¤¯Ã±¤ËɬÍפʥ֥í¥Ã¥¯ÈÖ¹æ¤ò»ØÄꤷ¤Þ¤¹. ¹ªÌ¯¤Ê¥¥ã¥Ã¥·¥åưºî¤ä, ÉÔÀµ¥Ö¥í¥Ã¥¯¤Î¼«Æ°ÃÖ¤´¹¤¨¤Ê¤É¤Îµ¡Ç½¤Ï¤³¤Î ¡Ö¥¤¥ó¥Æ¥ê¥¸¥§¥ó¥È¥Ç¥Ð¥¤¥¹¡× ¤Î¥¢¥×¥í¡¼¥Á¤Ë¤è¤Ã¤Æ²Äǽ¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
SCSI ¥Ð¥¹¤Ç¤ÏǤ°Õ¤Î¥Ç¥Ð¥¤¥¹¤ÎÁȤÇÄÌ¿®¤¹¤ë¤³¤È¤¬²Äǽ¤Ç¤¹. (ÌõÃí: Ǥ°Õ¤Î¥Ç¥Ð¥¤¥¹¤¬¥¤¥Ë¥·¥¨¡¼¥¿¤Ë¤Ê¤ì¤ë¤È¤¤¤¦°ÕÌ£¤Ç¤¹.) ¥Ç¥Ð¥¤¥¹¤Îµ¡Ç½¤¬¤½¤ì¤òµö¤¹¤«¤É¤¦¤«¤Ï ¤Þ¤¿Ê̤ÎÌäÂê¤Ç¤¹¤¬, µ¬³Ê¤Ç¤Ï ¶Ø»ß¤µ¤ì¤Æ¤¤¤Þ¤»¤ó. ¿®¹æ¤Î¾×ÆÍ¤òËɤ°¤¿¤á¤Ë2¤Ä¤Î¥Ç¥Ð¥¤¥¹¤Ï¥Ð¥¹¤ò»È¤¦Á°¤ËÄ´Ää (arbitrate) ¤ò¤ª¤³¤Ê¤¦É¬Íפ¬¤¢¤ê¤Þ¤¹.
SCSI ¤Î¹Í¤¨Êý¤È¤·¤Æ¸Å¤¤µ¬³Ê¤Î¥Ç¥Ð¥¤¥¹¤È ¿·¤·¤¤µ¬³Ê¤Î¥Ç¥Ð¥¤¥¹¤¬ Ʊ¤¸¥Ð¥¹¤Î¾å¤Çư¤¯¤è¤¦¤Ëµ¬³Ê¤òºî¤Ã¤Æ¤¤¤Þ¤¹. ¤·¤¿¤¬¤Ã¤Æ, ¸Å¤¤ SCSI-1¤Î ¥Ç¥Ð¥¤¥¹¤Ï SCSI-2¥Ð¥¹¤Î¾å¤Ç¤âÉáÄÌ¤ÏÆ°¤¤Þ¤¹. ÉáÄ̤Ï, ¤È¤³¤È¤ï¤Ã¤¿Íýͳ¤Ï, ¤¢¤ë¸Å¤¤¥Ç¥Ð¥¤¥¹¤¬¿·¤·¤¤¥Ð¥¹¤Ç¤âÌäÂê¤Ê¤¤Äø¤Ë (¸Å¤¤) µ¬³Ê¤ËÂФ·¤Æ½½Ê¬±è¤Ã¤¿¼ÂÁõ¤Ë¤Ê¤Ã¤Æ¤¤¤ë¤«¤É¤¦¤«¤ÏÀäÂÐŪ¤Ë ÊݾڤϤǤ¤Ê¤¤¤È¤¤¤¦¤³¤È¤Ç¤¹. °ìÈ̤˺Ƕá¤Î¥Ç¥Ð¥¤¥¹¤Ï¤è¤ê¤¦¤Þ¤¯Æ°ºî¤·¤Þ¤¹. ¤½¤ÎÍýͳ¤Ïµ¬³Ê²½¤¬¤è¤ê¸·Ì©¤Ë¤Ê¤ê, ¤Þ¤¿¥á¡¼¥«¡¼¤¬¥Ç¥Ð¥¤¥¹¤ÎÀ½Â¤¤Ë ¤ª¤¤¤Æ¤è¤ê¤¤Á¤ó¤Èµ¬³Ê¤Ë½¾¤¦¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤Æ¤¤¤ë¤«¤é¤Ç¤¹.
°ìÈÌŪ¤Ë¸À¤Ã¤Æ, ñ°ì¤Î¥Ð¥¹¾å¤Çư¤«¤¹¥Ç¥Ð¥¤¥¹¤Ï SCSI-2 ¤¢¤ë¤¤¤Ï¤è¤ê¿·¤·¤¤¥Ç¥Ð¥¤¥¹¤Ç¤¢¤ì¤Ð ¤¦¤Þ¤¯Æ°¤¯²ÄǽÀ¤Ï¹â¤¤¤È¸À¤¨¤Þ¤¹. ¤³¤ì¤Ï¿·¤·¤¤ 2GB¤Î¥Ç¥£¥¹¥¯¤ò¼ê¤ËÆþ¤ì¤¿¤È¤·¤¿¤é ¸Å¤¤¥Ç¥Ð¥¤¥¹¤ò¼Î¤Æ¤Æ¤·¤Þ¤ï¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¤È¤¤¤¦ °ÕÌ£¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó. »ä¤Î¥·¥¹¥Æ¥à¤Ç¤Ï SCSI-1°ÊÁ°¤Î¥Ç¥£¥¹¥¯, SCSI-2¤Î QIC¥Æ¡¼¥×¥æ¥Ë¥Ã¥È, SCSI-1¤Î¥Ø¥ê¥«¥ë¥¹¥¥ã¥ó¥Æ¡¼¥×¥æ¥Ë¥Ã¥È (ÌõÃí: VTR¤Î¤è¤¦¤Ê²óž¥Ø¥Ã¥É¤ò »ý¤Ã¤¿¥Æ¡¼¥×ÁõÃ֤Τ³¤È¤Ç¤¹. DAT¥Æ¡¼¥×¥É¥é¥¤¥Ö¤â¤½¤Î°ì¤Ä¤Ç¤¹), 2Âæ¤Î SCSI-1 ¥Ç¥£¥¹¥¯¤¬°ì½ï¤ËÌäÂê¤Ê¤¯Æ°¤¤¤Æ¤¤¤Þ¤¹. ¤¿¤À¤·¸úΨ¤ÎÅÀ¤«¤é¸Å¤¤¥Ç¥Ð¥¤¥¹¤È¿·¤·¤¤ (= ®¤¤) ¥Ç¥Ð¥¤¥¹¤òʬ¤±¤¿¤¤¤«¤â¤·¤ì¤Þ¤»¤ó. (ÌõÃí: ¸Å¤¤¥Ç¥Ð¥¤¥¹¤ÎÃæ¤Ë¤Ï disconnect¤ò¥µ¥Ý¡¼¥È¤·¤Ê¤¤¤¿¤á¤Ë°ìÏ¢¤Î¥³¥Þ¥ó¥É¼Â¹ÔÃæ¤Ë SCSI¥Ð¥¹¤òÀêͤ·¤Æ¤·¤Þ¤¦¥Ç¥Ð¥¤¥¹¤â¤¢¤ê¤Þ¤¹.)
Àè¤Ë½Ò¤Ù¤¿¤è¤¦¤Ë, SCSI¥Ç¥Ð¥¤¥¹¤Ï¥¤¥ó¥Æ¥ê¥¸¥§¥ó¥È¤Ç¤¹. ¤Ä¤Þ¤ê¥Ï¡¼¥É¥¦¥§¥¢ºÙÉô¤Ë¤«¤é¤àÃμ±¤Ï SCSI¥Ç¥Ð¥¤¥¹¼«¿È¤Ë »ý¤¿¤»¤Æ¤·¤Þ¤ª¤¦¤È¤¤¤¦¹Í¤¨Êý¤Ç¤¹. ¤³¤Î¹Í¤¨Êý¤Ç¤Ï SCSI¥Ç¥Ð¥¤¥¹¤Ï¤½¤ì¼«¿È¤Î¥Ï¡¼¥É¥¦¥§¥¢¤Î¾ÜºÙ¤òÃΤäƤ¤¤Þ¤¹. ¤³¤Î¾ì¹ç, ¥Û¥¹¥È¥·¥¹¥Æ¥à¤Ï¥Ï¡¼¥É¥Ç¥£¥¹¥¯¤¬¤¤¤¯¤Ä¤Î¥Ø¥Ã¥É ¤ò»ý¤Á, ¥Æ¡¼¥×¥Ç¥Ð¥¤¥¹¤¬¤¤¤¯¤Ä¤Î¥È¥é¥Ã¥¯¤ò»ý¤Ä¤«¤È¤¤¤¦¤è¤¦¤Ê ¤³¤È¤òÃΤëɬÍפ¬¤¢¤ê¤Þ¤»¤ó. ¤â¤·¤¢¤Ê¤¿¤¬ÃΤꤿ¤¤¤Î¤Ç¤¢¤ì¤Ð, µ¬³Ê¤ÇÄêµÁ¤µ¤ì¤Æ¤¤¤ë¥³¥Þ¥ó¥É¤ò »È¤Ã¤Æ¥Ç¥Ð¥¤¥¹¤Ë¥Ï¡¼¥É¥¦¥§¥¢¤Î¾ÜºÙ¤Ë¤Ä¤¤¤Æ ¼ÁÌ䤹¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹.
¥¤¥ó¥Æ¥ê¥¸¥§¥ó¥È¥Ç¥Ð¥¤¥¹¤ÎÍøÅÀ¤ÏÌÀ¤é¤«¤Ç¤¹. ¥Û¥¹¥È¤Î¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð¤Ï¤è¤ê°ìÈÌŪ¤Ë½ñ¤¯¤³¤È¤¬¤Ç¤, ¿·¤·¤¤¥Ç¥Ð¥¤¥¹¤òƳÆþ¤¹¤ë¾ì¹ç¤Ç¤âÊѹ¹¤ÎɬÍפ¬¤¢¤ê¤Þ¤»¤ó.
¥±¡¼¥Ö¥ë¤ÎÀܳ¤Ë¤ÏŴ§¤¬¤¢¤ê¤Þ¤¹. ¤è¤¤ÉôÉʤò»È¤¦¤³¤È¤Ç¤¹. ¥Ð¥¹¤Î®ÅÙ¤ò¾å¤²¤ë¤³¤È¤¬¤Ç¤, ¿¤¯¤ÎºÒÆñ¤òËɤ°¤³¤È¤¬¤Ç¤¤Þ¤¹.
¤Ç¤¹¤«¤é, ¶â¥á¥Ã¥¤Î¥³¥Í¥¯¥¿, ¥·¡¼¥ë¥É¥±¡¼¥Ö¥ë, ¸ÇÄê´ï¶ñÉÕ¤¤Î´è¾æ¤Ê¥³¥Í¥¯¥¿¥«¥Ð¡¼¤Ê¤É¤ò Áª¤Ö¤Î¤ÏÀµ¤·¤¤¤³¤È¤Ç¤¹. 2¤ÄÌܤÎŴ§¤Ï, ¥±¡¼¥Ö¥ë¤òɬÍװʾå¤ËŤ¯¤·¤Ê¤¤¤³¤È¤Ç¤¹. »ä¤Ï°ÊÁ°¤Ë¤¢¤ë¥Þ¥·¥ó¤Ç¥È¥é¥Ö¥ë¤Î ¸¶°ø¤òõ¤¹¤Î¤Ë 3Æü´ÖǺ¤ó¤Ç¤¤¤Þ¤·¤¿¤¬, SCSI¥Ð¥¹¤ò 1m û¤¯ ¤¹¤ë¤³¤È¤ÇÌäÂê¤ò²ò·è¤·¤¿¤³¤È¤¬¤¢¤ê¤Þ¤¹. ¤â¤Á¤í¤ó, ¸µ¤Î¥Ð¥¹¤ÎŤµ¤Ç¤âSCSI¤Î»ÅÍͤϤ¤Á¤ó¤È Ëþ¤¿¤·¤Æ¤¤¤¿¤Î¤Ç¤¹¤¬.
Åŵ¤Åª¤Ë¸ß´¹À¤Î¤Ê¤¤ 2¼ïÎà¤Î¥Ð¥¹¤Î¥¿¥¤¥×¤¬¤¢¤ê¤Þ¤¹. ¥·¥ó¥°¥ë¥¨¥ó¥É¤È¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë¤Î¥Ð¥¹¤Ç¤¹. ¤³¤ì¤Ï SCSI ¥Ç¥Ð¥¤¥¹¤È¥³¥ó¥È¥í¡¼¥é¤ÏƱ°ì¤Î¥Ð¥¹¾å¤Ëº®ºß¤¹¤ë¤³¤È¤Î¤Ç¤¤Ê¤¤ 2¤Ä¤Î¥°¥ë¡¼¥×¤Ë¤ËÂ礤¯Ê¬¤±¤é¤ì¤ë¤È¤¤¤¦¤³¤È¤ò°ÕÌ£¤·¤Æ¤¤¤Þ¤¹. ¤·¤«¤·, ÆÃÊ̤ʥϡ¼¥É¥¦¥§¥¢¤ò»È¤¨¤Ð¥·¥ó¥°¥ë¥¨¥ó¥É¥Ð¥¹¤ò ¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë¥Ð¥¹¤Ë (¤½¤ÎµÕ¤â) ÊÑ´¹¤¹¤ë¤³¤È¤Ï¤Ç¤¤Þ¤¹. ¤³¤ì¤é¤Î¥Ð¥¹¤Î¥¿¥¤¥×¤Î°ã¤¤¤Ï¼¡¤Î¥»¥¯¥·¥ç¥ó¤ÇÀâÌÀ¤·¤Þ¤¹.
SCSI´ØÏ¢¤Î¥É¥¥å¥á¥ó¥È¤Ç¤Ï °Û¤Ê¤ë¥¿¥¤¥×¤Î¥Ð¥¹¤ò°ì¼ï¤ÎÍѸì¤È¤· ¤ÆÎ¬¸ì¤Çɽ¤·¤Þ¤¹. ¤³¤ì¤ò¼¡¤Îɽ¤Ë¼¨¤·¤Þ¤¹.
FWD: Fast Wide Differential (¹â® ¥ï¥¤¥É Ê¿¹Õ)
FND: Fast Narrow Differential (¹â® ¥Ê¥í¡¼ Ê¿¹Õ)
SE: Single Ended (ÉÔÊ¿¹Õ)
FN: Fast Narrow (¹â® ¥Ê¥í¡¼)
etc.
¾¯¤·ÁÛÁüÎϤòƯ¤«¤»¤ì¤Ð¤É¤Î¤è¤¦¤Ê °ÕÌ£¤Ç¤¢¤ë¤«¤Ï¤ï¤«¤ë¤Ç¤·¤ç¤¦.
¥ï¥¤¥É (Wide) ¤Ï¤¤¤¯¤é¤«Û£Ëæ¤Ç, 16 ¤Þ¤¿¤Ï 32 bit¤Î¥Ð¥¹¤ò¼¨¤·¤Þ¤¹. »ä¤ÎÃΤë¸Â¤ê¤Ç¤Ï, 32 bit ¤Î¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Ï (¤Þ¤À) »È¤ï¤ì¤Æ¤¤¤Þ¤»¤ó¤Î¤Ç Wide ¤ÏÄ̾ï 16 bit¤ò°ÕÌ£¤·¤Þ¤¹.
¹â® (Fast) ¤Ï¥Ð¥¹¤Î¥¿¥¤¥ß¥ó¥°¤¬¤¤¤¯¤Ä¤«¤ÎÅÀ¤Ç°Û¤Ê¤ê, ¥Ê¥í¡¼ (8 bit) ¥Ð¥¹¤Ç¤Ï Äã® (slow) SCSI¥Ð¥¹¤Î 5 Mbytes/sec ¤ËÂФ·¤Æ 10 Mbytes/sec ¤ÎǽÎϤ¬¤¢¤ê¤Þ¤¹. Á°¤Ë¤â½Ò¤Ù¤¿¤è¤¦¤Ë, 20Mbytes/sec ¤ä 40Mbytes/sec ¤Î¥Ð¥¹Â®ÅÙ¤ò»ý¤Ä¤â¤Î¤â¸½¤ì¤Æ¤¤Æ¤¤¤Þ¤¹ (Fast-20 == Ultra SCSI ¤Ç Fast-40 == Ultra2 SCSI ¤Ç¤¹).
Note: ¥Ç¡¼¥¿Àþ¤Î¾å°Ì (> 8) ¤Ï¥Ç¡¼¥¿¤ÎžÁ÷¤È¥Ç¥Ð¥¤¥¹¤Î»ØÄê¤À¤±¤ËÍøÍѤµ¤ì¤Æ¤¤¤Þ¤¹. ¥³¥Þ¥ó¥É¤ÎÁ÷½Ð¤È¥¹¥Æ¡¼¥¿¥¹¥á¥Ã¥»¡¼¥¸Åù¤Ï²¼°Ì¦¤Î 8 bit¤Î¥Ç¡¼¥¿Àþ¤Î¤ß¤ò»È¤¤¤Þ¤¹. ¤³¤Îµ¬³Ê¤Ë¤è¤ê ¥Ê¥í¡¼¥Ç¥Ð¥¤¥¹¤Ï¥ï¥¤¥É¥Ð¥¹¾å¤Ç¤â ưºî¤¹¤ë»ö¤¬¤Ç¤¤Þ¤¹. ÍøÍѤǤ¤ë¥Ð¥¹¤ÎÉý¤Ï¥Ç¥Ð¥¤¥¹´Ö¤ÇÄ´Ää (¥Í¥´¥·¥¨¡¼¥·¥ç¥ó) ¤µ¤ì¤Þ¤¹. ¥Ç¥Ð¥¤¥¹¤Î ID¤Ë¤Ä¤¤¤Æ¤Ï¥ï¥¤¥É¤È¥Ê¥í¡¼¤¬º®ºß¤¹¤ë»þ¤Ë¤Ï µ¤¤ò¤Ä¤±¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó.
¥·¥ó¥°¥ë¥¨¥ó¥É SCSI¥Ð¥¹¤Ï 5V¤È 0V¤ÎÅ۵ (¤Ä¤Þ¤êTTL¥ì¥Ù¥ë¤Ç¤¹) ¤ò¿®¹æ¤È¤·¤Æ»È¤¤, ¤½¤ì¤é¤Ï¶¦Ä̤Υ°¥é¥¦¥ó¥É (GND) ¥ì¥Ù¥ë¤ò´ð½à ¤Ë¤·¤Þ¤¹. ¥·¥ó¥°¥ë¥¨¥ó¥É SCSI 8 bit¥Ð¥¹¤ÏÌó25ËܤΥ°¥é¥¦¥ó¥ÉÀþ ¤ò»ý¤Á, ¤¹¤Ù¤Æ¤Î¥Ç¥Ð¥¤¥¹¤ò¡ÖľÀþ¾õ¡×¤ËÀܳ¤·¤Þ¤¹. ´ð½à¤Ç¤Ï¥·¥ó¥°¥ë¥¨¥ó¥É¥Ð¥¹¤ÏºÇÂç¤ÎŤµ¤Ï 6m¤Ç¤¹. Fast-SCSI ¥Ç¥Ð¥¤¥¹¤ò»È¤¦¾ì¹ç¤Ë¤Ï, ¤³¤ÎºÇÂ獵¤Ï 3m¤Ëû¤¯¤Ê¤ê¤Þ¤¹. Fast-SCSI¤Ç¤Ï 5Mbytes/sec ¤Ç¤Ï¤Ê¤¯ 10Mbytes/sec ¤ÎžÁ÷®ÅÙ ¤¬²Äǽ¤Ë¤Ê¤ê¤Þ¤¹.
Fast-20 (Ultra SCSI) ¤È Fast-40¤Ç¤Ï¤½¤ì¤¾¤ì1Éô֤Ë2000Ëü (20M) ¤Ê¤¤¤·¤Ï 4000Ëü (40M) ²ó¤ÎžÁ÷¤¬¤Ç¤¤Þ¤¹. ¤·¤¿¤¬¤Ã¤Æ, Fast-20¤Ç¤Ï 8bit¥Ð¥¹¤Ç 20Mbytes/sec, 16bit¥Ð¥¹¤Ç 40Mbytes/sec¤È¤Ê¤ê¤Þ ¤¹. Fast-20¤Ç¤Ï¥Ð¥¹¤ÎºÇÂç¤ÎŤµ¤Ï 1.5m, Fast-40¤Ç¤Ï 0.75m¤Ë ¤Ê¤ê¤Þ¤¹. Fast-20¤Ï¸Â³¦¤òÁêÅö¤Ë¹¤²¤ë¤â¤Î¤Ê¤Î¤Ç SCSI¥Ð¥¹ ¤Ë»¨²»¤¬Â¿¤¤¾ì¹ç¤Ï¤½¤Î±Æ¶Á¤ò¨ºÂ¤Ë¼õ¤±¤Þ¤¹.
Note: ¥Ð¥¹¾å¤Î¤¤¤º¤ì¤«¤Î¥Ç¥Ð¥¤¥¹¤¬ ¡Ö¹â®¤Î¡× žÁ÷¤òÍøÍѤ¹¤ë¾ì¹ç¤Ï Fast¥Ð¥¹¤ÎŤµ¤ÎÀ©¸Â¤ò¼õ¤±¤Þ¤¹.
ºÇ¶á¤Î Fast-SCSI ¥Ç¥Ð¥¤¥¹¤Ç¤Ï¥Ð¥¹¤ÎŤµ¤¬¼ÂºÝ¤ÎÌäÂê¤Ë ¤Ê¤ê¤Ä¤Ä¤¢¤ë¤Î¤¬ÌÀ¤é¤«¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹. ¤³¤ì¤¬¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë SCSI¥Ð¥¹¤¬SCSI-2¤Îµ¬³Ê¤ËƳÆþ¤µ¤ì¤¿Íýͳ¤Ç¤¹.
¥³¥Í¥¯¥¿¤Î¥Ô¥óÇÛÃ֤䥳¥Í¥¯¥¿¤Î¼ïÎà¤Ë¤Ä¤¤¤Æ¤Ï SCSI-2¤Îµ¬³Ê (¤µ¤é¤Ë¾Ü¤·¤¤¾ðÊó) ¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤.¥³¥Í¥¯¥¿Åù¤Ë¤Ä¤¤¤Æ ¾ÜºÙ¤Ê¥ê¥¹¥È¤¬¤¢¤ê¤Þ¤¹.
Èóɸ½à¤Î¥±¡¼¥Ö¥ë¤ò»È¤¦¥Ç¥Ð¥¤¥¹¤Ëµ¤¤ò¤Ä¤±¤Æ¤¯¤À¤µ¤¤. Î㤨¤Ð Apple (¤Î Macintosh ¤Ï) 25pin ¤Î D-type ¤Î¥³¥Í¥¯¥¿ (¥·¥ê¥¢¥ë¥Ý¡¼¥È¤ä¥Ñ¥é¥ì¥ë¥×¥ê¥ó¥¿¤Ë»È¤ï¤ì¤Æ¤¤¤ë¥³¥Í¥¯¥¿ -- ÌõÃí: ÆüËܤǤϰìÈÌŪ¤Ë D-sub 25pin¤È¸À¤Ã¤Æ¤¤¤Þ¤¹) ¤ò»È¤Ã¤Æ¤¤¤Þ¤¹. ¸ø¼°¤ÊSCSI¥Ð¥¹¤Ç¤Ï50 pin ¤¬É¬ÍפǤ¢¤ë»ö¤«¤é¤³¤Î¥³¥Í¥¯¥¿¤Ç¤Ï ¡ÖÆÈÁÏŪ¤Ê¥Ô¥óÇÛÃ֡פ¬É¬Íפʻö¤¬ÁÛÁü¤Ç¤¤ë¤Ç¤·¤ç¤¦. ¤³¤³ ¤Ç¤ª¤³¤Ê¤ï¤ì¤Æ¤¤¤ë¤è¤¦¤Ë¥°¥é¥¦¥ó¥ÉÀþ¤Î¿ô¤ò ¸º¤é¤¹¤³¤È¤Ï¤è¤¤¹Í¤¨ ¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó. SCSI¤Îµ¬³ÊÄ̤ê¤Î 50 pin¤ÎÀܳ¤ÎÊý¤¬Ë¾¤Þ¤· ¤¤¤Ç¤¹. Fast-20 ¤ä 40 ¤Ç¤³¤Î¤è¤¦¤Ê¥±¡¼¥Ö¥ë¤ò»È¤ª¤¦¤Ê¤ó¤Æ ¹Í¤¨¤Æ¤Ï¤¤¤±¤Þ¤»¤ó.
¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë SCSI¥Ð¥¹¤ÏºÇÂ獬 25m ¤Ç¤¹. ¥·¥ó¥°¥ë¥¨¥ó¥É Fast-SCSI¥Ð¥¹¤Î 3m¤È¤Ï¤Þ¤Ã¤¿¤¯°ã¤¤¤Þ¤¹. Ê¿¹Õ¿®¹æ¤ÎÇØ·Ê¤È ¤Ê¤Ã¤Æ¤¤¤ë¹Í¤¨Êý¤Ï, ¤½¤ì¤¾¤ì¤Î¥Ð¥¹¤Î¿®¹æ¤Ï¤½¤ì¤¾¤ì ÆÈΩ¤·¤¿¥ê¥¿¡¼¥ó¿®¹æÀþ¤ò»ý¤Ä¤È¤¤¤¦¤â¤Î¤Ç¤¹. ¤Ä¤Þ¤ê, ¤½¤ì¤¾¤ì¤Î¿®¹æ¤Ï (¤Ç¤¤ì¤Ð¤è¤êÀþ¤Î) ¥Ú¥¢¤Î¿®¹æÀþ¤Ç ÅÁ¤¨¤é¤ì¤Þ¤¹. ¤³¤ì¤é2¤Ä¤Î¿®¹æÀþ¤Îº¹Ê¬¤ÎÅ۵¤Ç¿®¹æ¤¬¡Ö¿¿¡×(assert) ¤Ç ¤¢¤ë¤«¡Öµ¶¡×(de-assert) ¤Ç¤¢¤ë¤«È½Äꤵ¤ì¤Þ¤¹. ¤«¤Ê¤ê¤ÎÅ۵ ¤¬¥°¥é¥¦¥ó¥ÉÅṲ̋ȿ®¹æÀþ¥Ú¥¢¤Î´Ö¤Ë¤«¤«¤Ã¤¿¤È¤·¤Æ¤â±Æ¶Á¤¬¤¢ ¤ê¤Þ¤»¤ó (¤À¤«¤é¤È¤¤¤Ã¤Æ 10kV¤ÎÅ۵¤ò¤«¤±¤Æ¤ß¤¿¤ê¤·¤Ê¤¤¤Ç ¤¯¤À¤µ¤¤.. ).
¤Ê¤¼Ê¿¹Õ¿®¹æ¤¬ ¤è¤¤¤Î¤«¤Ë¤Ä¤¤¤Æ¤ÎÀâÌÀ¤Ï ¤³¤Î¥É¥¥å¥á¥ó¥È¤Î ÈϰϤò±Û¤¨¤Æ¤¤¤Þ¤¹. Åŵ¤Åª¤ËÊ¿¹Õ¿®¹æ¤Ï¥Î¥¤¥º¥Þ¡¼¥¸¥ó¤ÎÅÀ¤Ç Èó¾ï¤ËÍ¥¤ì¤¿¤â¤Î¤È¤·¤ÆÍøÍѤµ¤ì¤Æ¤¤¤ë¤È¤¤¤¦¤³¤È¤ò ¼õ¤±Æþ¤ì¤Æ ¤¯¤À¤µ¤¤. ¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë¥Ð¥¹¤ÏÉáÄ̤ϳ°ÉôÀܳ¤Ë ÍøÍѤµ¤ì¤Æ¤¤¤Þ¤¹. ¤³¤ì¤ÏÄ㥳¥¹¥È¤Î¥·¥ó¥°¥ë¥¨¥ó¥É¥Ð¥¹¤¬ãþÂÎÆâ¤Îû ¤¤µ÷Î¥¤Î¥Ð¥¹¤Ç¤ÏÈó¾ï¤Ë¿¤¯ÍøÍѤµ¤ì¤Æ¤¤¤ë¤«¤é¤Ç¤¹.
FreeBSD¤ò»È¤¦¤Ë¤ª¤¤¤Æ, FreeBSD ¤Ç¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë ¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð¤¬¤¢¤ë¤Î¤Ç¤¢¤ì¤Ð ¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë¥Ð¥¹¤ÎÍøÍÑ¤Ç ÌäÂê¤Ë¤Ê¤ë¤³¤È¤Ï ²¿¤â¤¢¤ê¤Þ¤»¤ó. Îã¤ò¤¢¤²¤ì¤Ð, ¥¢¥À¥×¥Æ¥Ã¥¯¤Î AHA1740¤Ï¥·¥ó¥°¥ë¥¨¥ó¥É¤Ç, AHA1744¤Ï¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë¤Ç¤¹. ÁÐÊý¤Î¥½¥Õ¥È¥¦¥§¥¢¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Ï¤Þ¤Ã¤¿¤¯Æ±°ì¤Ç¤¹.
SCSI¤Ë¤ª¤±¤ëÍѸì¤Ç¤Î¥¿¡¼¥ß¥Í¡¼¥¿¤È¤Ï¥¤¥ó¥Ô¡¼¥À¥ó¥¹¤Î ¥Þ¥Ã¥Á¥ó¥°¤òÀµ³Î¤Ë¤ª¤³¤Ê¤¦¤¿¤á¤ÎÄñ¹³¥Í¥Ã¥È¥ï¡¼¥¯¤Ç¤¹. ¥¤¥ó¥Ô¡¼¥À¥ó¥¹ ¥Þ¥Ã¥Á¥ó¥°¤ÏÈ¿¼Í¤ä¥ê¥ó¥®¥ó¥°¤òÍÞ¤¨, ¥Ð¥¹¤Î¿®¹æ¤ò¤¤ì¤¤¤Ë¤¹ ¤ë½ÅÍפʤâ¤Î¤Ç¤¹. ¤¿¤È¤¨¤Ð, ¤¢¤Þ¤ê¾õÂ֤Τ褯¤Ê¤¤²óÀþ¤Çŵ÷ Î¥¤ÎÅÅÏäò¤«¤±¤¿»þ¤Ë¤¢¤Ê¤¿¤ÏÈ¿¼Í¤ò¤É¤ó¤Ê¤â¤Î¤« ´¶¤¸¤ë¤«¤â¤·¤ì¤Þ¤»¤ó. 20Mbytes/sec ¤Ç¿®¹æ¤ÎÅÁ¤ï¤ë SCSI¥Ð¥¹¤Ç¤Ï¿®¹æ¤Î¥¨¥³¡¼¤Ï¤¢ ¤ê¤¬¤¿¤¯¤¢¤ê¤Þ¤»¤ó.
ÌõÃí: Åŵ¤¿®¹æ¤Î¥Ñ¥ë¥¹¤Ï¿Ê¹ÔÇȤȤ·¤Æ¤ÎÀ³Ê¤ò»ý¤Ã¤Æ¤¤¤Þ¤¹. ¤³¤Î¤¿¤á, °ìÈÌŪ¤Ë¤Ï¿®¹æÀþ¤Îξü¤ÇÈ¿¼Í¤¬µ¯¤¤Þ¤¹. 3m¤Î¥Ð¥¹¤Îü¤«¤é¥Ñ¥ë¥¹¤òÆþ¤ì¤¿¾ì¹ç, È¿ÂФÎü¤«¤é¤ÎÈ¿¼ÍÇÈ¤Ï 20ns¸å - ËÜÅö¤ÏÅÅÀþÃæ¤Î¿®¹æ¤ÎÅÁã¤Ï ¸÷®¤è¤ê¤â¾¯¤·ÃÙ¤¯¤Ê¤ë¤Î¤Ç¤â¤¦¾¯¤·»þ´Ö¤¬¤«¤«¤ê¤Þ¤¹¤¬ - ¤ËÊ֤äƤ¤Þ¤¹. Ä㮤ΥХ¹¤Î¾ì¹ç¥¿¥¤¥ß¥ó¥°Åª¤Ê;͵¤¬¤¢¤ê, È¿¼Í¤ò·«¤êÊÖ¤·¤Æ¤¤¤ë¤¦¤Á¤ËÈ¿¼ÍÇȤϸº¿ê¤·¤Æ¤·¤Þ¤¦¤Î¤Ç¤¹¤¬ ¹â®¤Î¥Ð¥¹¤Î¾ì¹ç¤Ï, È¿¼ÍÇȤαƶÁ¤¬Íî¤ÁÃ夯Á°¤Ë¿®¹æ¤Î ÆÉ¤ß¹þ¤ß¤Ê¤É¤ò¹Ô¤¦¤¿¤á¤ËÇÈ·Á¤ÎÍð¤ì¤¬¸íưºî¤Î¸¶°ø¤Ë ¤Ê¤ë¾ì¹ç¤¬¤¢¤ê¤Þ¤¹. ¤³¤Î¤¿¤á¥¿¡¼¥ß¥Í¡¼¥¿¤ò»ÈÍѤ·¤ÆÈ¿¼ÍÇȤÎȯÀ¸¤ò¤Ç¤¤ë¤À¤± ¤ª¤µ¤¨¤Þ¤¹.
¥¿¡¼¥ß¥Í¡¼¥¿¤Ï¤¤¤í¤¤¤í¤Ê - ÀöÎý¤µ¤ì¤¿¤â¤Î¤â¤½¤¦¤Ç¤Ê¤¤¤â¤Î¤â - ¼Â¸½ÊýË¡¤¬¤¢¤ê¤Þ¤¹. ¤â¤Á¤í¤ó, Æâ¢¤Î¤â¤Î¤È³°Éô¤È¤¤¤¦ ¶èÊ̤⤢¤ê¤Þ¤¹. ¿¤¯¤Î SCSI¥Ç¥Ð¥¤¥¹¤Ë¤Ï¤¤¤¯¤Ä¤«¤Î ¥½¥±¥Ã¥È¤¬¤¢¤ê, ¤½¤ÎÃæ¤Ë¤ÏÄñ¹³¥Í¥Ã¥È¥ï¡¼¥¯ (½¸¹çÄñ¹³) ¤¬ Æþ¤Ã¤Æ¤¤¤ë¤â¤Î¤â¤¢¤ë¤«¤â¤·¤ì¤Þ¤»¤ó (¤¤¤ä, ¤ª¤½¤é¤¯ ´Ö°ã¤¤¤Ê¤¯¤¢¤ë¤Ç¤·¤ç¤¦). ¥¿¡¼¥ß¥Í¡¼¥¿¤ò ¥Ç¥Ð¥¤¥¹¤«¤é³°¤¹»þ¤ÏÂç»ö¤Ë¤·¤Þ¤Ã¤Æ¤ª¤¤¤Æ¤¯¤À¤µ¤¤. SCSI¤ÎÀÜ Â³¤ÎÊѹ¹¤ò¤·¤è¤¦¤È»×¤Ã¤¿»þ¤ËɬÍפˤʤ뤫¤â¤·¤ì¤Þ¤»¤ó. ¤Þ ¤¿, ¤½¤ì¤é¤·¤¤Äñ¹³¥Í¥Ã¥È¥ï¡¼¥¯¤¬¸«¤Ä¤«¤é¤Ê¤¤¤³¤È¤â¤¢¤ê¤Þ¤¹. ¤³¤Î¾ì¹ç, SCSI¥Ç¥Ð¥¤¥¹¤ÏÆâ¢¥¿¡¼¥ß¥Í¡¼¥¿¤Î͸ú¤È̵¸ú¤òÀÚÂØ ¤¨¤ë¥¸¥ã¥ó¥Ñ¤¬¤¢¤ê¤Þ¤¹. ¥Õ¥é¥Ã¥È¥±¡¼¥Ö¥ë¤Ë¼è¤êÉÕ¤±¤ëÆÃÊÌ ¤Ê¥¿¡¼¥ß¥Í¡¼¥¿¤â¤¢¤ê¤Þ¤¹. ¾¤Ë¤Ï³°Éô¥³¥Í¥¯¥¿¤Î¤è¤¦¤Ê·Á¤ò¤· ¤¿¤â¤Î¤ä¥±¡¼¥Ö¥ë¤Î¤Ê¤¤¥³¥Í¥¯¥¿¥Ø¥Ã¥É¤À¤±¤Î¤â¤Î¤â¤¢¤ê¤Þ¤¹. ¤¤¤í¤¤¤í¤È¸«¤é¤ì¤ë¤è¤¦¤Ë¿¤¯¤ÎÁªÂò¤¬¤¢¤ê¤Þ¤¹.
¤É¤Î¤è¤¦¤Ê¾ì¹ç¤Ëñ½ã¤ÊÄñ¹³ (¥Ñ¥Ã¥·¥Ö) ¥¿¡¼¥ß¥Í¡¼¥¿¤«¤é ¥¢¥¯¥Æ¥£¥Ö¥¿¡¼¥ß¥Í¡¼¥¿¤ØÀÚÂØ¤¨¤ë¤«¤È¤¤¤¦ÌäÂ꤬¤¢¤ê¤Þ¤¹. ¥¢¥¯¥Æ¥£¥Ö¥¿¡¼¥ß¥Í¡¼¥¿¤Ï¤¤¤¯¤é¤«Àº¹ª¤Ê²óÏ©¤¬¿®¹æ¤ò¤è¤ê ¤¤ì¤¤¤Ë¤¹¤ë¤¿¤á¤ËÆþ¤Ã¤Æ¤¤¤Þ¤¹. °ìÈÌŪ¤Ë¼õ¤±Æþ¤ì¤é¤ì¤Æ¤¤¤ë°Õ¸«¤È¤·¤Æ¤Ï, Ť¤¥Ð¥¹¤ò»È¤Ã¤¿¤ê ¹â®¤Ê¥Ç¥Ð¥¤¥¹¤ò»È¤¦¾ì¹ç¤Ï¥¢¥¯¥Æ¥£¥Ö¥¿¡¼¥ß¥Í¡¼¥¿¤Î ͸úÀ¤ÏÁý²Ã¤¹¤ë¤È¸À¤¨¤Þ¤¹. SCSI ¥Ð¥¹¤Ç¤¹¤Ç¤ËÌäÂ꤬µ¯¤¤Æ ¤¤¤ë¤Ê¤é¥¢¥¯¥Æ¥£¥Ö¥¿¡¼¥ß¥Í¡¼¥¿¤ò»î¤¹¤³¤È¤ò¹Í¤¨¤Æ¤¤¤¤¤Ç ¤·¤ç¤¦. ¤Þ¤º¼Ú¤ê¤ë¤³¤È¤¬¤Ç¤¤Ê¤¤¤«Ãµ¤·¤Æ¤ß¤Æ¤¯¤À¤µ¤¤. ¥¢¥¯¥Æ¥£¥Ö¥¿¡¼¥ß¥Í¡¼¥¿¤ÏÈó¾ï¤Ë¹â²Á¤À¤½¤¦¤Ç¤¹¤«¤é.
¥Ç¥£¥Õ¥¡¥ì¥ó¥·¥ã¥ë¤È ¥·¥ó¥°¥ë¥¨¥ó¥É¥Ð¥¹¤Î¥¿¡¼¥ß¥Í¡¼¥¿¤Ï¸ß´¹ À¤¬¤Ê¤¤¤È¤¤¤¦¤³¤È¤ò³Ð¤¨¤Æ¤ª¤¤¤Æ¤¯¤À¤µ¤¤. ¤³¤ì¤é¤Î2¤Ä¤Î¼ï Îà¤ò º®ºß¤µ¤»¤ë¤³¤È¤Ï¤Ç¤¤Þ¤»¤ó.
OK, ¤Ç¤Ï¤¢¤Ê¤¿¤Ï ¥¿¡¼¥ß¥Í¡¼¥¿¤ò¤É¤³¤ËÆþ¤ì¤ì¤Ð¤¤¤¤¤Ç¤·¤ç¤¦¤«? ¤³¤ì¤Ï SCSI¤ÇºÇ¤â¿¤¯¸í²ò¤µ¤ì¤Æ¤¤¤ë¤È¤³¤í¤Ç¤¹. ¤·¤«¤·, ¤³¤ì ¤Ï¶Ë¤á¤ÆÃ±½ã¤Ê¤³¤È¤Ç¤¹.. ¤³¤³¤Ç¤Î¥ë¡¼¥ë¤Ï SCSI¥Ð¥¹¤ÎÀþ °ìËܰìËܤÏɬ¤ºÎ¾Ã¼¤Ë 2¸Ä¤Î¥¿¡¼¥ß¥Í¡¼¥¿¤òÆþ¤ì¤ë ¤È¤¤¤¦¤³¤È¤Ç¤¹. ¤Ä¤Þ¤ê 2¸Ä¤Ç¤¢¤Ã¤Æ1¸Ä¤Ç¤â3¸Ä¤Ç¤â¤¢¤ê¤Þ¤»¤ó. ¤³¤Î¥ë¡¼¥ë¤ò¼õ¤±Æþ¤ì¤Æ¤·¤¿¤¬¤Ã¤Æ¤¯¤À¤µ¤¤. ¤½¤¦¤¹¤ì¤Ð½ª¤ê¤Î ¤Ê¤¤¶ì¤·¤ß¤«¤éµß¤ï¤ì¤ë¤Ç¤·¤ç¤¦. ¤Ê¤¼¤Ê¤é´Ö°ã¤Ã¤¿¥¿¡¼¥ß¥Í¡¼¥·¥ç¥ó¤ÏÉԲIJò¤Ê¥Ð¥°¤ò°ú¤µ¯¤³¤¹ ²ÄǽÀ¤¬Èó¾ï¤Ë¹â¤¤¤«¤é¤Ç¤¹. (¤³¤³¤Î ``²ÄǽÀ'' ¤ËÃí°Õ; °ì¸«Æ°¤¤¤Æ¤¤¤ë¤è¤¦¤Ë¸«¤¨¤ë ¤³¤È¤¬¤¢¤ë¤Î¤¬¤ä¤Ã¤«¤¤¤Ç¤¹.)
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Note: ¥¿¡¼¥ß¥Í¡¼¥¿¤Î°ÌÃÖ¤Ï ¿®¹æÀþ¤´¤È¤Ë·è¤Þ¤ë¤³¤È¤ËÃí°Õ¤·¤Æ²¼¤µ¤¤. ¥Ê¥í¡¼¤È¥ï¥¤¥É¤Î¥±¡¼¥Ö¥ë¤ò ξÊý¥³¥ó¥È¥í¡¼¥é¤Ë¤Ä¤Ê¤¤¤Ç¤¤¤ë¾ì ¹ç¤Ë¤Ï, ¥±¡¼¥Ö¥ë¤Îξü¤È¤È¤â¤Ë¥³¥ó¥È¥í¡¼¥é¾å¤Ç¤Ï¥Ð¥¹¤Î¾å°Ì 8¥Ó¥Ã¥È¤ò¥¿¡¼¥ß¥Í¡¼¥È¤·¤Ê¤¤¤È¤¤¤±¤Þ¤»¤ó.
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¤³¤ì¤Ë¤Ï SCSI¤Ç¤Ï¥¿¡¼¥²¥Ã¥ÈID¤¬»È¤ï¤ì¤Þ¤¹. ¤½¤ì¤¾¤ì¤Î¥Ç¥Ð¥¤ ¥¹¤ÏÆÃÄê¤Î¥¿¡¼¥²¥Ã¥ÈID¤ò»ý¤Á¤Þ¤¹. ¥Ç¥Ð¥¤¥¹¤Î ID¤Ï¥¸¥ã¥ó¥Ñ¤ä DIP¥¹¥¤¥Ã¥Á¤Ê¤É¤ÇÀßÄê¤Ç¤¤Þ¤¹. ¥Ö¡¼¥È»þ¤Î¥á¥Ë¥å¡¼¤«¤éID¤ò Êѹ¹¤Ç¤¤ë¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤ë¥³¥ó¥È¥í¡¼¥é¤â¤¢¤ê¤Þ¤¹. (¤Þ¤¿, ID¤ò 7¤«¤éÊѤ¨¤ë¤³¤È¤¬¤Ç¤¤Ê¤¤¥³¥ó¥È¥í¡¼¥é¤â¤¢¤ê¤Þ¤¹.) ¤è¤ê¾Ü¤·¤¤¾ðÊó¤Ï¥Ç¥Ð¥¤¥¹¤Î¥Þ¥Ë¥å¥¢¥ë¤ò¸«¤Æ¤¯¤À¤µ¤¤.
Ê£¿ô¤Î¥Ç¥Ð¥¤¥¹¤ò»È¤¦¾ì¹ç¤Ï ID¤Î½ÅÊ£¤Ëµ¤¤ò¤Ä¤±¤Æ¤¯¤À¤µ¤¤. ½ÅÊ£¤¹¤ë¤ÈÉáÄ̤Ϻ®Íð¾õÂ֤ˤʤê¤Þ¤¹. Ʊ¤¸ ID¤ò¶¦Í¤·¤Æ¤¤¤ë ¥Ç¥Ð¥¤¥¹¤Î¤¦¤Á¤Î°ì¤Ä¤¬I/O¥ê¥¯¥¨¥¹¥È¤ËÅú¤¨¤é¤ì¤¿¤ê¤¹¤ë¤È Èó¾ï¤Ë¤ä¤Ã¤«¤¤¤Ê¤³¤È¤Ë¤Ê¤ê¤Þ¤¹.
8 bit¥Ð¥¹¤Ç¤Ï, ºÇÂç8Âæ¤Î¥¿¡¼¥²¥Ã¥È¤Þ¤Ç²Äǽ¤Ç¤¹. ºÇÂç8Âæ¤Ç ¤¢¤ëÍýͳ¤Ï, ¥Ð¥¹¤Î8ËܤΥǡ¼¥¿Àþ¤¬¥Ç¥Ð¥¤¥¹¤ÎÁªÂò¤Ë»È¤ï¤ì¤ë ¤«¤é¤Ç¤¹. ¥ï¥¤¥É¤Ê¥Ð¥¹¤Ç¤Ï»È¤¨¤ë¥Ç¥Ð¥¤¥¹¤Î¿ô¤ÏÁý¤¨¤Þ¤¹ (Ä̾ï¤Ï16¤Ë¤Ê¤ë¤ï¤±¤Ç¤¹).
Note: ¥Ê¥í¡¼ SCSI ¥Ç¥Ð¥¤¥¹¤Ï 8 °Ê¾å¤Î¥¿¡¼¥²¥Ã¥È ID ¤ò»ý¤Ä¥Ç¥Ð¥¤¥¹¤È¤Ï ÄÌ¿®¤Ç¤¤Ê¤¤¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤. ¤Ç¤¹¤«¤é, ¥³¥ó¥È¥í¡¼¥é ¤Î¥¿¡¼¥²¥Ã¥ÈID¤ò8°Ê¾å¤Ë¤¹¤ë¤Î¤Ï¤¢¤Þ¤ê¤¤¤¤¹Í¤¨¤È¤Ï ¤¤¤¨¤Þ¤»¤ó (CD-ROM¤¬»È¤¨¤Ê¤¯¤Ê¤Ã¤¿¤ê¤·¤Þ¤¹).
Ʊ»þ¤Ë¥Ð¥¹»ÈÍѤÎÍ׵᤬ȯÀ¸¤·¤¿¾ì¹ç, ºÇ¤â ID¤ÎÂ礤¤¥Ç¥Ð¥¤¥¹ ¤¬Í¥À褵¤ì¤ë¤È¤¤¤¦Ä´Ä䤬¤ª¤³¤Ê¤ï¤ì¤Þ¤¹. ¤³¤Î¤³¤È¤Ï SCSI¥Û¥¹¥È¥¢¥À¥×¥¿¤Î ID¤ÏÄ̾ï7ÈÖ¤¬»È¤ï¤ì¤ëÍýͳ¤Ç¤â¤¢¤ê ¤Þ¤¹. ¤¿¤À¤·, ¥ï¥¤¥É¥Ð¥¹¤Ç¤Ï²¼°Ì8¥Ó¥Ã¥È¤¬¾å°Ì8¥Ó¥Ã¥È¤è¤êÍ¥ ÀèÅÙ¤¬¹â¤¤¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤. ¤Ä¤Þ¤ê, ¥ï¥¤¥ÉSCSI¤Î¥·¥¹ ¥Æ¥à¤Ç¤Ï¥¿¡¼¥²¥Ã¥ÈID¤ÎÍ¥ÀèÅ٤Ϲ⤤½ç¤Ë [7 6 .. 1 0 15 14 .. 9 8] ¤È¤Ê¤ê¤Þ¤¹. (¤É¤¦¤·¤Æ²¼°Ì8¥Ó¥Ã¥È¤ÎÊý¤¬Í¥ÀèÅÙ¤¬¹â¤¤¤«¤Ï, °ì¤ÄÁ°¤ÎÃÊÍî¤òÆÉ¤ó¤Ç¹Í¤¨¤Æ¤ß¤Æ²¼¤µ¤¤.)
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SCSI¥Ð¥¹¤ÏľÀþ¾õ¤Ç¤¹. ¤Ä¤Þ¤ê, YÀܳ, ¥¹¥¿¡¼Àܳ, ±ß·Á, ¥¯¥â¤ÎÁã¾õ¤ÎÀܳ¤Ê¤É¤ÎľÀþ°Ê³°¤ÎÀܳ¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó. ½é¿´¼Ô¤¬ ¤è¤¯¤ä¤ë´Ö°ã¤¤¤È¤·¤Æ¤Ï¥ï¥¤¥ÉSCSI¤Î¥³¥ó¥È¥í¡¼¥é¤Îü»Ò3¤Ä¤È ¤â¤Ë¥±¡¼¥Ö¥ë¤ò¤Ä¤Ê¤¤¤Ç¤·¤Þ¤¦¤È¤¤¤¦¤â¤Î¤¬¤¢¤ê¤Þ¤¹. (³°Éô, ÆâÉô¥Ê¥í¡¼, ÆâÉô¥ï¥¤¥É.) ¤è¤Û¤É±¿¤¬¤è¤±¤ì¤Ð¤³¤ó¤Ê¥È¥Ý¥í¥¸¡¼ ¤Ç¤â¤Á¤ã¤ó¤Èư¤¯¤è¤¦¤Ë¸«¤¨¤ë¤«¤â¤·¤ì¤Þ¤»¤ó¤¬, ¤¨¤Æ¤·¤Æ¤³¤¦ ¤¤¤¦¥·¥¹¥Æ¥à¤Ï°ìÈÖÂçÀڤʻþ¤Ë»È¤¨¤Ê¤¯¤Ê¤Ã¤¿¤ê¤¹¤ë¤â¤Î¤Ç¤¹ (¤³¤ì¤ò``¥Þ¡¼¥Õ¥£¡¼¤Îˡ§''¤È¤¤¤¤¤Þ¤¹).
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¤Þ¤º»Ï¤á¤ëÁ°¤Ë, Åŵ¤Åª¤ËÌäÂê¤Î¤Ê¤¤¥Ð¥¹¤Ç¤¢¤ë¤«Ä´¤Ù¤Æ¤ª¤¤¤Æ¤¯ ¤À¤µ¤¤.
SCSI¥Ç¥£¥¹¥¯¤òPC¤Ç¥Ö¡¼¥È¥Ç¥£¥¹¥¯¤È¤·¤Æ»È¤¦¾ì¹ç¤Ë, PC BIOS¤Ë ´Ø¤¹¤ëµ¤¤Þ¤°¤ì¤Ë¤Ä¤¤¤ÆÃΤäƤª¤¯É¬Íפ¬¤¢¤ê¤Þ¤¹. PC BIOS¤Ï ¥Ï¡¼¥É¥Ç¥£¥¹¥¯¤Ø¤ÎÄã¥ì¥Ù¥ëʪÍý¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤ò ÍøÍѤ¹¤ë¤è¤¦¤Ë ¼Â¸½¤µ¤ì¤Æ¤¤¤Þ¤¹. ¤·¤¿¤¬¤Ã¤Æ, BIOS¤Ë (¥»¥Ã¥È¥¢¥Ã¥×¥Ä¡¼¥ë¤äBIOS¥Ó¥ë¥È¥¤¥ó ¥»¥Ã¥È¥¢¥Ã¥×¤ò»È¤Ã¤Æ) ¥Ç¥£¥¹¥¯¤ÎʪÍý¥Ñ¥é¥á¥¿¤ò¶µ¤¨¤Æ¤ä¤ë ɬÍפ¬¤¢¤ê¤Þ¤¹. ¤³¤ì¤Ï¥Ø¥Ã¥É¤Î¿ô, ¥·¥ê¥ó¥À¤Î¿ô, ¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¤Ê¤É¤¬¤¢¤ê, ¥×¥ê¥³¥ó¥Ú¥ó¥»¡¼¥·¥ç¥ó¤ä½ñ¤¹þ¤ßÅÅή¤ò ¸º¾¯¤µ¤»¤ë¥È¥é¥Ã¥¯, ¤Ê¤É¤Î¤¢¤Þ¤ê¤è¤¯ÃΤé¤ì¤Æ¤¤¤Ê¤¤¤â¤Î¤â¤¢¤ê¤Þ¤¹.
SCSI¥Ç¥£¥¹¥¯¤Ï¤³¤ì¤é¤Î¤³¤È¤ò¥æ¡¼¥¶¤Ï µ¤¤Ë¤¹¤ëɬÍפ¬¤Ê¤¤¤Ï¤º ¤À¤È¹Í¤¨¤ë¤«¤â¤·¤ì¤Þ¤»¤ó. ¤·¤«¤·, ÉԻ׵Ĥʤ³¤È¤Ë (¤³¤ì¤é¤Î¹à ÌܤÎ) ¥»¥Ã¥È¥¢¥Ã¥×¤Ï¤¤¤Þ¤À¤Ë¤¢¤ë¤Î¤Ç¤¹. ¥·¥¹¥Æ¥à BIOS¤Ï¥Ö¡¼¥È »þ¤ËFreeBSD¤Î¥«¡¼¥Í¥ë¤òÆÉ¤ß¹þ¤à¤¿¤á¤ËSCSI¥Ç¥£¥¹¥¯¤Ë /¥Ø¥Ã¥É/¥·¥ê¥ó¥À/¥»¥¯¥¿ ¤ò»ØÄꤹ¤ëÊýË¡¤Ç¥¢¥¯¥»¥¹¤¹¤ë¤¿¤á, ¥Ñ¥é¥á¥¿¤òÃΤëɬÍפ¬¤¢¤ë¤Î¤Ç¤¹.
AT/EISA/PCI¥Ð¥¹¤Ê¤É¤Ë¤¢¤ê, ¥Ç¥£¥¹¥¯¤ËÀܳ¤µ¤ì¤ë SCSI¥Û¥¹¥È¥¢¥À¥×¥¿¤ä SCSI¥³¥ó¥È¥í¡¼¥é¤Ï ¤½¤ì¼«¿È¤Î¥ª¥ó¥Ü¡¼¥ÉBIOS¤ò»ý¤Ã¤Æ¤¤¤Þ¤¹. ¥·¥¹¥Æ¥à¤Îµ¯Æ°»þ¤Ë, SCSI BIOS¤Ï ¥·¥¹¥Æ¥àBIOS¤Î¥Ï¡¼¥É¥Ç¥£¥¹¥¯¤Î ¥¤¥ó¥¿¥Õ¥§¡¼¥¹¥ë¡¼¥Á¥ó¤ò¾è¤Ã¼è¤ê¤Þ¤¹. ¥·¥¹¥Æ¥àBIOS¤ò¤´¤Þ¤«¤¹¤¿¤á¤Ë ¥·¥¹¥Æ¥à¥»¥Ã¥È¥¢¥Ã¥×¤Ç¤ÏÉáÄÌ¤Ï `No hard disk' ¤È¤·¤Þ¤¹. ´Êñ¤Ç¤¹¤Í?
ÌõÃí: BIOS ¤Ç `No hard disk' ¤È¤¤¤¦ÀßÄê¤ò¤ª¤³¤Ê¤¦¤Î¤Ï SCSI ¥É¥é¥¤¥Ö¤«¤éľÀܵ¯Æ°¤µ¤»¤ë¤¿¤á¤Î¥Æ¥¯¥Ë¥Ã¥¯¤Ç¤¹. ¸½ºß¤Î¥Þ¥¶¡¼¥Ü¡¼¥É¤Ç¤Ï SCSI ¥É¥é¥¤¥Ö¤«¤éµ¯Æ°¤µ¤»¤ë¤¿¤á¤Î ¥ª¥×¥·¥ç¥ó¤ò»ý¤Ä BIOS ¤ò»ÈÍѤ·¤Æ¤¤¤ë¤â¤Î¤â¤¢¤ê¤Þ¤¹. ¤Þ¤¿, ¥Ö¡¼¥È¥»¥ì¥¯¥¿¤ò»È¤Ã¤Æ IDE¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥Ö¥í¥Ã¥¯¤«¤é SCSI¥É¥é¥¤¥Ö¾å¤Î FreeBSD¤ò¥Ö¡¼¥È¤¹¤ë¤³¤È¤â¤Ç¤¤Þ¤¹.
SCSI BIOS ¤Ï¥É¥é¥¤¥Ö¤Î ¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó ¤È¸Æ¤Ð¤ì¤ë µ¡Ç½¤ò»ý¤Á¤Þ¤¹. ¤³¤ì¤ÏPC¤¬¥Ö¡¼¥È¤¹¤ë¤¿¤á¤Ëºî¤é¤ì¤¿¥É¥é¥¤¥Ö¥Æ¡¼ ¥Ö¥ë¤ò¤´¤Þ¤«¤¹¤â¤Î¤Ç¤¹. ¤³¤Î¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤Ï¿¤¯¤Ï (¤¹¤Ù¤Æ¤Î¾ì¹ç¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó) ¥È¥é¥Ã¥¯¤¢¤¿¤ê64¤¢¤ë¤¤¤Ï32¸Ä¤Î¥Ø¥Ã¥É¤ò »ý¤Ä²¾ÁÛŪ¤Ê¥É¥é¥¤¥Ö¤ò»È¤¤¤Þ¤¹. ¥·¥ê¥ó¥À¤Î¿ô¤òÊѹ¹¤¹¤ë¤³¤È¤Ç SCSI BIOS ¤Ï¼ÂºÝ¤Î¥É¥é¥¤¥Ö¤Î¥µ¥¤¥º¤ËŬ¹ç¤µ¤»¤Þ¤¹. Áí¥»¥¯¥¿¿ô ¤ò 32 * 64 / 2 ¤Ç³ä¤Ã¤¿·ë²Ì¤¬¥á¥¬¥Ð¥¤¥Èñ°Ì¤Î¥É¥é¥¤¥Ö¤Î¥µ¥¤¥º ¤Ë¤Ê¤ê¤Þ¤¹. 2¤Ç³ä¤Ã¤Æ¤¤¤ë¤Î¤Ï, Ä̾ï 512¥Ð¥¤¥È¤Î¥µ¥¤¥º¤Î ¥»¥¯¥¿¤ò kByte ñ°Ì¤ËÊÑ´¹¤¹¤ë¤¿¤á¤Ç¤¹.
¤Ç¤Ï¤³¤ì¤Ç¤¹¤Ù¤Æ¤¦¤Þ¤¯¤¤¤¯¤Î¤Ç¤·¤ç¤¦¤«. ¤¤¤¤¤¨, ¤½¤¦¤¤¤¦Ìõ¤Ç ¤Ï¤¢¤ê¤Þ¤»¤ó. ¥Ö¡¼¥È²Äǽ¤Ê¥Ï¡¼¥É¥Ç¥£¥¹¥¯¤Î¥·¥ê¥ó¥À¿ô¤Ï 1024¤è ¤ê¿¤¯¤¹¤ë¤³¤È¤Ï¤Ç¤¤Ê¤¤¤Î¤Ç¤¹. ¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤ò»È¤Ã¤¿ ¾ì¹ç¤Ç¤â¥Ç¥£¥¹¥¯¤Î 1GB°Ê¾å¤ÎÎΰè¤Ï¸«¤¨¤Þ¤»¤ó. ¥Ç¥£¥¹¥¯¤ÎÍÆÎÌ ¤¬¤É¤ó¤É¤óÁý²Ã¤·¤Æ¤¤¤¯¤Ë¤Ä¤ì¤³¤ì¤ÏÌäÂê¤Ë¤Ê¤Ã¤Æ¤¤Þ¤·¤¿.
¹¬¤¤¤Ë¤·¤Æ, ñ½ã¤Ê²ò·èÊýË¡¤¬¤¢¤ê¤Þ¤¹. ñ¤ËÊ̤Υȥé¥ó¥¹¥ì¡¼¥·¥ç ¥ó¤ò»È¤¨¤Ð¤è¤¤¤Î¤Ç¤¹. Î㤨¤Ð, 32¸Ä¤ËÂå¤ï¤ê, 128¸Ä¤Î¥Ø¥Ã¥É¤ò»È¤¤¤Þ¤¹. ¤Û¤È¤ó¤É¤Î¾ì¹ç, ¸Å¤¤SCSI¥Û¥¹¥È¥¢¥À¥×¥¿¤ò¥¢¥Ã¥×¥°¥ì¡¼¥É¤¹ ¤ë¤¿¤á¤Î¿·¤·¤¤¥Ð¡¼¥¸¥ç¥ó¤Î SCSI BIOS ¤¬ÍѰդµ¤ì¤Æ¤¤¤Þ¤¹. ¿·¤·¤¤¥¢¥À¥×¥¿¤Ç¤Ï¥¸¥ã¥ó¥Ñ ¤ä¥»¥Ã¥È¥¢¥Ã¥×¥½¥Õ¥È¤Ë¤è¤Ã¤Æ SCSI BIOS¤Î»È¤¦ ¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤òÁªÂò¤Ç¤¤ëʪ¤â¤¢¤ê¤Þ¤¹.
¤³¤³¤ÇÈó¾ï¤Ë½ÅÍפʤ³¤È¤Ï, ¥Ç¥£¥¹¥¯¾å¤Î¤¹¤Ù¤Æ¤Î ¥ª¥Ú¥ì¡¼¥Æ¥£¥ó¥°¥·¥¹¥Æ¥à¤¬ Ʊ°ì¤Î¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤ò»È¤Ã¤Æ Àµ¤·¤¤¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤òÆÀ¤ë¤³¤È¤Ç¤¹. ¤Ä¤Þ¤ê FreeBSD¤ò¥¤¥ó¥¹¥È¡¼¥ë¤¹¤ë»þ¤Ë, ¥Ø¥Ã¥É/¥·¥ê¥ó¥À¤Ê¤É¤Ë¤Ä¤¤¤Æ¤Î ¼ÁÌä¤Ë¤¢¤Ê¤¿¤Î¥Û¥¹¥È¥¢¥À¥×¥¿¤¬ »ÈÍѤ·¤Æ¤¤¤ë¥È¥é¥ó¥¹¥ì¡¼¥È¤µ¤ì¤¿ Ãͤò»È¤ï¤Ê¤¯¤Æ¤Ï¤Ê¤ê¤Þ¤»¤ó.
¥È¥é¥ó¥¹¥ì¡¼¥·¥ç¥ó¤Ë´Ø¤¹¤ë¼ºÇԤǤ褯¸«¤é¤ì¤ë¤â¤Î¤Ï, ¥Ö¡¼¥È¤·¤Ê¤¤¥·¥¹¥Æ¥à¤¬¤Ç¤¤¿¤ê, ¾¤Î¥Ñ¡¼¥Æ¥£¥·¥ç¥ó¤ò ¾å½ñ¤¤·¤Æ¤·¤Þ¤¦¤³¤È¤Ç¤¹. ¤¹¤Ù¤Æ¤Î¥·¥¹¥Æ¥à¤¬¸«¤¨¤ë¤è¤¦¤Ë fdisk¤ò»È¤¦¤Ù¤¤Ç¤¹.
¤¢¤Ê¤¿¤Ï¥Ç¥Ð¥¤¥¹¤Ë¤Ä¤¤¤Æ ¤³¤ì¤È¤Ï¿©¤¤°ã¤Ã¤¿Ïäòʹ¤¤¤¿¤³¤È¤¬ ¤¢¤ë¤«¤â¤·¤ì¤Þ¤»¤ó. ¸Å¤¤ FreeBSD¤Î¥«¡¼¥Í¥ë¤Ï¥Ö¡¼¥È¤¹¤ë»þ¤Ë SCSI ¥Ç¥£¥¹¥¯¤Î¥¸¥ª¥á¥È¥ê¾ðÊó¤òÊó¹ð¤·¤Æ¤¤¤Þ¤·¤¿. »ä¤Î¥·¥¹¥Æ¥à¤Î°ì¤Ä¤ÎÎã¤ò¼¨¤·¤Þ¤·¤ç¤¦.
aha0 targ 0 lun 0: <MICROP 1588-15MB1057404HSP4> sd0: 636MB (1303250 total sec), 1632 cyl, 15 head, 53 sec, bytes/sec 512
ºÇ¶á¤Î¥«¡¼¥Í¥ë¤Ï, ÉáÄ̤Ϥ³¤Î¤è¤¦¤Ê¾ðÊó¤òÊó¹ð¤·¤Þ¤»¤ó. ¤¿¤È¤¨¤Ð, ¤³¤Î¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
(bt0:0:0): "SEAGATE ST41651 7574" type 0 fixed SCSI 2 sd0(bt0:0:0): Direct-Access 1350MB (2766300 512 byte sectors)
¤Ê¤¼¤³¤Î¤è¤¦¤ËÊѤï¤Ã¤¿¤Î¤Ç¤·¤ç¤¦?
¤³¤Î¾ðÊó¤Ï SCSI¥Ç¥£¥¹¥¯¼«¿È¤«¤éÆÀ¤é¤ì¤Þ¤¹. ºÇ¶á¤Î¥Ç¥£¥¹¥¯¤Ç ¤Ï¤è¤¯¥¾¡¼¥ó¥Ó¥Ã¥ÈµÏ¿Êý¼° (zone bit recording) ¤È¤¤¤¦ µ»½Ñ¤¬»È¤ï¤ì¤Æ¤¤¤Þ¤¹. ¤³¤ì¤Ï¥É¥é¥¤¥Ö¤Î³°Â¦¤Î¥·¥ê¥ó¥À¤Ï Æâ¦¤è¤ê¤â¥¹¥Ú¡¼¥¹¤¬¹¤¤¤Î¤Ç¥È¥é¥Ã¥¯¤¢¤¿¤ê¤Î¥»¥¯¥¿¿ô¤ò Áý¤ä¤¹¤³¤È¤¬¤Ç¤¤ë¤È¤¤¤¦¥¢¥¤¥Ç¥£¥¢¤Ç¤¹. ¤³¤Î·ë²Ì, ³°Â¦¤Î¥·¥ê¥ó¥À¾å¤Î¥È¥é¥Ã¥¯¤ÎÍÆÎÌ¤ÏÆâ¦¤Î ¥·¥ê¥ó¥À¤è¤ê¤âÂ礤¯¤Ê¤ê, Á´ÂΤǤϤè¤êÂ礤ÊÍÆÎ̤Ȥʤê¤Þ¤¹. ¤³¤Î¾ì¹ç, ¥É¥é¥¤¥Ö¤Î¥¸¥ª¥á¥È¥ê¤Ë¤Ä¤¤¤Æ¤ÎÊó¹ð¤Ï, ºÇÁ±¤Î¤â¤Î¤«¤É¤¦¤«µ¿¤ï¤·¤¯, ¤Û¤È¤ó¤É¤Î¾ì¹ç¸í²ò¤ò¾·¤¯¤â¤Î¤Ç¤¢ ¤ë¤³¤È¤¬¤ï¤«¤ë¤Ç¤·¤ç¤¦. ¥¸¥ª¥á¥È¥ê¤òÄ´¤Ù¤ë¾ì¹ç, ¤Û¤È¤ó¤É¤Î¾ì¹ç¤Ï BIOS¤ÎÍѤ¤ ¤Æ¤¤¤ëÃͤòÍ¿¤¨¤ëÊý¤¬¤è¤¤·ë²Ì¤È¤Ê¤ê, BIOS¤¬¤½¤Î¥Ç¥£¥¹¥¯¤Ë ¤Ä¤¤¤Æ¤Þ¤Ã¤¿¤¯´ØÃΤ·¤Ê¤¤¤Î¤Ç¤¢¤ì¤Ð (Î㤨¤Ð¥Ö¡¼¥È¥Ç¥£¥¹¥¯¤Ç ¤Ï¤Ê¤¤¤Ê¤é) ÅÔ¹ç¤Î¤è¤¤²¾ÁۤΥ¸¥ª¥á¥È¥ê¤òÍ¿¤¨¤ì¤Ð¤¤¤¤¤Ç¤·¤ç¤¦.
FreeBSD¤Ç¤Ï³¬ÁØÅª¤Ê SCSI¥µ¥Ö¥·¥¹¥Æ¥à¤òÍѤ¤¤Æ¤¤¤Þ¤¹. ¤½¤ì¤¾¤ì °Û¤Ê¤ë¥³¥ó¥È¥í¡¼¥é¥«¡¼¥É¤Î ¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð¤¬½ñ¤«¤ì¤Æ¤¤¤Þ¤¹. ¤³¤Î¥É¥é¥¤¥Ð¤Ï¥³¥ó¥È¥í¡¼¥é¤Î¥Ï¡¼¥É¥¦¥§¥¢¤Î ¾ÜºÙ¤òÃΤäƤ¤¤Þ¤¹. ¥É¥é¥¤¥Ð¤Ï SCSI¥µ¥Ö¥·¥¹¥Æ¥à¤Î¤è¤ê¾å°Ì¤Î³¬ÁؤΥ³¥Þ¥ó¥É¤ò¼õ¤±¼è¤ê, ¥¹¥Æ¡¼¥¿¥¹¤òÊó¹ð¤¹¤ë¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤ò»ý¤Á¤Þ¤¹.
¥«¡¼¥É¤Î¥É¥é¥¤¥Ð¤ÎºÇ¾å°Ì¤Ë¤Ï, ¥Ç¥Ð¥¤¥¹¤Î¥¯¥é¥¹¤Î¤¿¤á¤Î ¤¤¤¯¤Ä¤«¤Î°ìÈÌŪ¤Ê¥É¥é¥¤¥Ð¤¬¤¢¤ê¤Þ¤¹. ¶ñÂÎŪ¤Ë¤¤¤¦¤È, ¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Î¤¿¤á¤Î¥É¥é¥¤¥Ð (ά¹æ¤Ï: st), ¼§µ¤¥Ç¥£¥¹¥¯ (sd), CD-ROM (cd) ¤Ê¤É¤Ç¤¹. ¤³¤ì¤é¤Î¥½¡¼¥¹¥³¡¼¥É¤Ï /sys/scsi¤Ë¤¢¤ê¤Þ¤¹. ¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸ (man) ¤Î¥»¥¯¥·¥ç¥ó 4 ¤Ë¤Ï¤è¤ê¾Ü¤·¤¤ÆâÍÆ¤¬ ¤¢¤ë¤Î¤Ç¸«¤Æ¤¯¤À¤µ¤¤.
¿³¬ÁؤÎÀ߷פÏÄã¥ì¥Ù¥ë¤È¤è¤ê¹â°Ì¤Î ¥ì¥Ù¥ë¤òʬΥ¤µ¤»¤ë¤³¤È¤¬ ¤Ç¤¤Þ¤¹. ¿·¤¿¤Ë¾¤Î¼ïÎà¤Î¥Ï¡¼¥É¥¦¥§¥¢¤Î¥µ¥Ý¡¼¥È¤ò²Ã¤¨¤ë¤³¤È¤ò ¤è¤ê½èÍý¤·¤ä¤¹¤¤ÌäÂê¤Ë¤·¤Þ¤¹.
¤¢¤Ê¤¿¤Î¥Ï¡¼¥É¥¦¥§¥¢¹½À®¤Ë¤·¤¿¤¬¤Ã¤Æ, ¥«¡¼¥Í¥ë¤Î ¥³¥ó¥Õ¥£¥°¥Õ¥¡¥¤¥ë¤Ë ¥Û¥¹¥È¥¢¥À¥×¥¿¤Ë¤Ä¤¤¤Æ 1¹Ô¤¢¤ë¤¤¤Ï¿ô¹ÔÄøÅ٤ε½Ò¤ò¤¹¤ë ɬÍפ¬¤¢¤ê¤Þ¤¹. ¤³¤ì¤Ë¤Ï I/O ¥¢¥É¥ì¥¹¤ä³ä¤ê¹þ¤ß¤Ê¤É¤Ë¤Ä¤¤¤Æ¤ÎÆâÍÆ¤â ´Þ¤ß¤Þ¤¹. ¤¢¤Ê¤¿¤Î¥¢¥À¥×¥¿¤Î¥É¥é¥¤¥Ð¤Ë¤Ä¤¤¤Æ¤Î¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸ ¤Ë¤Ï¤è¤ê¿¤¯¤Î¾ðÊ󤬤¢¤ë¤Î¤Ç¤è¤¯ÆÉ¤ó¤Ç¤¯¤À¤µ¤¤. ¤³¤ì¤È¤ÏÊÌ¤Ë /sys/i386/conf/LINT ¤Ë¤Ï¥«¡¼¥Í¥ë¥³¥ó¥Õ¥£¥°¥Õ¥¡¥¤¥ë¤Ë¤Ä¤¤¤Æ¤Î ³µÍפ¬¤¢¤ê¤Þ¤¹. LINT ¤Ë¤Ï°ìÈÌŪ¤Ê¤â¤Î¤Ë¤Ä¤¤¤Æ¤Ï²Äǽ¤Ê¤¹¤Ù¤Æ¤Î ¥ª¥×¥·¥ç¥ó¤¬´Þ¤Þ¤ì¤Æ¤¤¤Þ¤¹. ¤¿¤À¤·, LINT ¤Ç¤Ï¼ÂºÝ¤Ëưºî¤¹¤ë¥«¡¼¥Í¥ë¤òºî¤ë¤³¤È¤Ï ¤Ç¤¤Þ¤»¤ó.
ÅöÁ³¤Î¤³¤È¤ò¸À¤¦¤è¤¦¤Ç¶²½Ì¤Ç¤¹¤¬, ¥«¡¼¥Í¥ë¥³¥ó¥Õ¥£¥°¥Õ¥¡¥¤¥ë¤Ï¼ÂºÝ¤Î¥Ï¡¼¥É¥¦¥§¥¢¹½À®¤ò È¿±Ç¤¹¤Ù¤¤Ç¤¹. ¤½¤Î¤è¤¦¤Ë³ä¤ê¹þ¤ß¤äI/O¥¢¥É¥ì¥¹Åù¤Ë ¹ç¤ï¤»¤Æ¥«¡¼¥Í¥ë¥³¥ó¥Õ¥£¥°¥Õ¥¡¥¤¥ë¤ò½ñ¤« ¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó. ¥·¥¹¥Æ¥à¤Î¥Ö¡¼¥È»þ¤Î¥á¥Ã¥»¡¼¥¸¤Ï¼ÂºÝ¤Ë ¸«¤Ä¤±¤¿¥Ï¡¼¥É¥¦¥§¥¢¤ÎÀßÄê¤òɽ¼¨¤·¤Þ¤¹.
Note: ¤Û¤È¤ó¤É¤Î EISA/PCI ÍѤΥɥ饤¥Ð (¶ñÂÎŪ¤Ë¤Ï ahb, ahc, ncr ¤È amd¤Ç¤¹) ¤Ï¥Ö¡¼¥È»þ¤Ë¥³¥ó¥È¥í¡¼¥é¤«¤éľÀܥѥé¥á¡¼¥¿ ¤òÆÉ¤ß¤³¤ß¤Þ¤¹. ¤³¤ì¤é¤Ë¤Ä¤¤¤Æ¤Ï, ²¿¤â°ú¿ô¤ò¤Ä ¤±¤º¤Ë¤¿¤À controller ahc0 ¤Î¤è¤¦¤Ë½ñ¤±¤ÐÂç¾æÉ×¤Ç ¤¹.
Îã¤È¤·¤Æ FreeBSD 2.2.5-Release¤Î¤¤¤¯¤Ä¤«¤Î¥³¥á¥ó¥È ([]¤ÎÃæ) ¤ò¤Ä¤±¤¿ LINT ¥«¡¼¥Í¥ë¥³¥ó¥Õ¥£¥°¥Õ¥¡¥¤¥ë¤ò¼¨ ¤·¤Þ¤¹.
# SCSI host adapters: `aha', `ahb', `aic', `bt', `nca' # # aha: Adaptec 154x # ahb: Adaptec 174x # ahc: Adaptec 274x/284x/294x # aic: Adaptec 152x and sound cards using the Adaptec AIC-6360 (slow!) # amd: AMD 53c974 based SCSI cards (e.g., Tekram DC-390 and 390T) # bt: Most Buslogic controllers # nca: ProAudioSpectrum cards using the NCR 5380 or Trantor T130 # ncr: NCR/Symbios 53c810/815/825/875 etc based SCSI cards # uha: UltraStore 14F and 34F # sea: Seagate ST01/02 8 bit controller (slow!) # wds: Western Digital WD7000 controller (no scatter/gather!). # [ Adaptec AHA274x/284x/294x/394x ¤Ê¤É¤Î¥³¥ó¥È¥í¡¼¥é] controller ahc0 [ NCR/Symbios 53c875 ¥³¥ó¥È¥í¡¼¥é] controller ncr0 [Ultrastor ¥¢¥À¥×¥¿] controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr # Map SCSI buses to specific SCSI adapters controller scbus0 at ahc0 controller scbus2 at ncr0 controller scbus1 at uha0 # The actual SCSI devices disk sd0 at scbus0 target 0 unit 0 [SCSI ¥Ç¥£¥¹¥¯ 0 ¤Ï scbus 0, LUN 0] disk sd1 at scbus0 target 1 [unit ¤ò¾Êά¤¹¤ë¤È°ÅÌÛ¤Ç LUN 0] disk sd2 at scbus1 target 3 [uha0 ¾å¤Î SCSI¥Ç¥£¥¹¥¯] disk sd3 at scbus2 target 4 [ncr0 ¾å¤Î SCSI¥Ç¥£¥¹¥¯] tape st1 at scbus0 target 6 [SCSI ¥Æ¡¼¥× ¤Ï ¥¿¡¼¥²¥Ã¥È (ID)6] device cd0 at scbus? [ºÇ½é¤Ë¸«¤Ä¤±¤¿ CD-ROM, ¸ÇÄê¤Ë¤·¤Ê¤¤]
¾å¤ÎÎã¤Ç¤Ï ¥«¡¼¥Í¥ë¤Ï ahc (Adaptec 274x) ¥³¥ó¥È¥í¡¼¥é¤ò¤Þ¤ºÃµ¤·, ¤½¤Î¼¡¤Ë NCR/Symbios ¤Î¥Ü¡¼¥É¤È¤¤¤¦¤è¤¦¤Ë½çÈÖ¤Ëõ¤·¤Æ ¹Ô¤¤Þ¤¹. ¤½¤Î²¼¤Î¹Ô¤Î controller ¤Îµ½Ò¤Ç¤Ï¥Ç¥Ð¥¤¥¹¤Î¾ÜºÙ ¤òµ½Ò¤·¤Æ, Âбþ¤¹¤ë¥Ð¥¹¤Ç¥¿¡¼¥²¥Ã¥È ID ¤È LUN ¤¬»ØÄꤵ¤ì¤¿ ¤â¤Î¤È°ìÃפ¹¤ë¾ì¹ç¤À¤± ǧ¼±¤¹¤ë¤è¤¦¤Ë¥«¡¼¥Í¥ë¤Ë ÅÁ¤¨¤Æ¤¤¤Þ¤¹.
¸ÇÄꤵ¤ì¤¿ (Wired down) ¥Ç¥Ð¥¤¥¹¤Ï ``ºÇ½é¤Ë''¥æ¥Ë¥Ã¥ÈÈֹ椬 Í¿¤¨¤é¤ì¤ë¤Î¤Ç, ``¸ÇÄê''¤µ¤ì¤Æ¤¤¤Ê¤¤¥Ç¥Ð¥¤¥¹¤ÏƱ¤¸¼ïÎà¤Î ``¸ÇÄê''¤µ¤ì¤¿¥æ¥Ë¥Ã¥È ÈÖ¹æ¤ÎºÇ¤âÂ礤¤ÈÖ¹æ¤Î1¤Ä¾å¤ÎÈֹ椫¤é³ä¤êÅö¤Æ¤é¤ì¤Þ¤¹. ¤·¤¿¤¬¤Ã¤Æ, ¥¿¡¼¥²¥Ã¥ÈID 2¤Î SCSI¥Æ¡¼¥×¤ò²Ã¤¨¤ë¤È, ¥¿¡¼¥²¥Ã¥ÈID 6 ¤Î¥Æ¡¼¥×¤¬¥æ¥Ë¥Ã¥ÈÈÖ¹æ1¤Ë¸ÇÄꤵ¤ì¤Æ¤¤¤ë¤Î¤Ç, ¤½¤ì¤Ïst2¤ËÀßÄê ¤µ¤ì¤ë¤Ç¤·¤ç¤¦.
Note: ¥Ö¡¼¥È»þ¤Ë¸«¤Ä¤«¤é¤Ê¤¯¤Æ¤â¸ÇÄꤵ¤ì¤¿¥Ç¥Ð ¥¤¥¹¤Ë¤Ï¥æ¥Ë¥Ã¥ÈÈֹ椬¾ï¤Ë³ä¤êÅö¤Æ¤é¤ì¤Þ¤¹. ¸ÇÄê¤Î¥Ç¥Ð¥¤¥¹¤Ë ³ä¤êÅö¤Æ¤é¤ì¤¿¥æ¥Ë¥Ã¥ÈÈÖ¹æ¤Ï, ¤â¤·¤½¤Î¥Ç¥Ð¥¤¥¹¤Î¥¹¥¤¥Ã¥Á¤¬ ¥Ö¡¼¥È»þ¤ËÀÚ¤é¤ì¤Æ¤¤¤Æ¤â¤½¤Î¥Ç¥Ð¥¤¥¹¤Ë ¥ê¥¶¡¼¥Ö¤µ¤ì¤Æ¤¤¤Þ¤¹. ¤³¤ì¤Ï, ÅŸ»¤òÆþ¤ì¤ÆÀܳ¤·¤¿»þ¤Î¥æ¥Ë¥Ã¥ÈÈֹ椬Ϳ¤¨¤é¤ì¤Þ¤¹. ¥Ç¥Ð¥¤¥¹¤Î¥æ¥Ë¥Ã¥ÈÈÖ¹æ¤Ï SCSI¥Ð¥¹¤Î¥¿¡¼¥²¥Ã¥ÈID ¤È¤Ï ²¿¤Î´Ø·¸¤â¤Ê¤¤ ¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤.
²¼¤ÎÎã¤Ï FreeBSD ¤Î¥Ð¡¼¥¸¥ç¥ó 2.0.5 °ÊÁ°¤Î ¥«¡¼¥Í¥ë¥³¥ó¥Õ¥£ ¥°¥Õ¥¡¥¤¥ë¤Ç¤¹. ºÇ½é¤ÎÎã¤È¤Î°ã¤¤¤Ï¥Ç¥Ð¥¤¥¹¤Î``¸ÇÄê (wired down)'' ¤¬¤Ê¤¤¤³¤È¤Ç¤¹. ``¸ÇÄê'' ¤Ë¤è¤ê¤É¤ÎSCSI¥¿¡¼¥²¥Ã¥È¤ò¤É¤Î ¥Ç¥Ð¥¤¥¹¤Ë³ä¤êÅö¤Æ¤ë¤«¤òµ½Ò¤Ç¤¤ë¤è¤¦¤Ë¤Ê¤ê¤Þ¤·¤¿.
²¼¤Î¥³¥ó¥Õ¥£¥°¥Õ¥¡¥¤¥ë¤Ë¤è¤ê ¹½ÃÛ¤µ¤ì¤¿¥«¡¼¥Í¥ë¤Ç¤ÏºÇ½é¤Ë¸«¤Ä ¤±¤¿ SCSI¥Ç¥£¥¹¥¯¤¬ sd0¤Ë¤Ê¤ê, ¼¡¤Ë¸«¤Ä¤±¤¿¥Ç¥£¥¹¥¯¤¬ sd1¤Ë, ¤È¤¤¤¦¶ñ¹ç¤Ë³ä¤êÅö¤Æ¤é¤ì¤Þ¤¹. ¤â¤·¥Ç¥£¥¹¥¯¤Îºï½ü¤äÄɲäò¤ª¤³¤Ê¤¦ ¤È, ¾¤ÎƱ¤¸¥¿¥¤¥×¤Î¥Ç¥Ð¥¤¥¹ (¤³¤Î¾ì¹ç¤Ï¥Ç¥£¥¹¥¯) ¤Î¤¹¤Ù¤Æ¤¬ ¡Ö°Üư¤·¤Æ¡×¤·¤Þ¤¦¤«¤â¤·¤ì¤Þ¤»¤ó. ¤³¤ì¤Ë¤è¤ê¤½¤Î¤¿¤Ó¤Ë /etc/fstab ¤òÊѹ¹¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹.
¸Å¤¤¥¹¥¿¥¤¥ë¤Ç¤âư¤¤Þ¤¹¤¬, ¿·¤·¤¤¥¹¥¿¥¤¥ë¤ò»È¤¦¤³¤È¤¬¶¯ ¤¯ ¿ä¾©¤µ¤ì¤Æ¤¤¤Þ¤¹. ¤³¤ì¤Ë¤è¤ê SCSI¥Ð¥¹¤Î¥Ï¡¼¥É¥¦¥§¥¢¤ò ¤É¤Î¤è¤¦¤ËÊѹ¹¤·¤¿¾ì¹ç¤Ç¤â¥È¥é¥Ö¥ë¤òÈò¤±¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹. ¤Ç¤¹¤«¤é, 2.0.5.R°ÊÁ°¤Î FreeBSD¤«¤é¥¢¥Ã¥×¥°¥ì¡¼¥É¤·¤¿¸å¤Ë¸Å¤¤ ¿®Íê¤Ç¤¤ë¥³¥ó¥Õ¥£¥°¥Õ¥¡¥¤¥ë¤òºÆÍøÍѤ¹¤ë»þ¤Ï¤³¤ÎÉôʬ¤ò ¥Á¥§¥Ã¥¯¤·¤ÆÄ¾¤·¤Æ¤¯¤À¤µ¤¤.
[Adaptec 174xÍѤΥɥ饤¥Ð] controller ahb0 at isa? bio irq 11 vector ahbintr [Adaptec 154xÍѤΥɥ饤¥Ð ] controller aha0 at isa? port "IO_AHA0" bio irq 11 drq 5 vector ahaintr [Seagate ST01/02¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤Î¥É¥é¥¤¥Ð] controller sea0 at isa? bio irq 5 iomem 0xc8000 iosiz 0x2000 vector seaintr controller scbus0 device sd0 [4Âæ¤ÎSCSI ¥Ç¥£¥¹¥¯¤Î¥µ¥Ý¡¼¥È, sd0 ¤«¤é sd3] device st0 [2Âæ¤Î SCSI ¥Æ¡¼¥×¤Î¥µ¥Ý¡¼¥È] [CD-ROM¤Î¥É¥é¥¤¥Ð] device cd0 #Only need one of these, the code dynamically grows
ξÊý¤ÎÎã¤Ç SCSI¥Ç¥£¥¹¥¯¤¬¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤Þ¤¹. ¥Ö¡¼¥ÈÃæ¤Ë ¡Ö¸ÇÄê¡×¤Îµ½Ò¤¬¤µ¤ì¤Æ¤¤¤ë¥¿¥¤¥×(Î㤨¤Ð sd ¥Ç¥£¥¹¥¯) ¤Î¥Ç¥Ð ¥¤¥¹¤Çµ½Ò¤è¤ê¿¤¯¤Î¥Ç¥Ð¥¤¥¹¤¬¸«¤Ä¤«¤ë¤È, ¥·¥¹¥Æ¥à¤Ïñ½ã¤ËºÇ¸å¤Î ``¸ÇÄê'' ¤Î¥Ç¥Ð¥¤¥¹¤ÎÈÖ¹æ¤è¤ê 1¤Ä¤º¤ÄÁý²Ã¤µ¤»¤¿ÈÖ¹æ¤ò¥Ç¥Ð¥¤¥¹¤Ë³ä¤êÅö¤Æ¤Æ¹Ô¤¤Þ¤¹. ¤â¤· ``¸ÇÄê'' ¤Î¥Ç¥Ð¥¤¥¹¤¬¤Ê¤±¤ì¤Ð¥æ¥Ë¥Ã¥ÈÈÖ¹æ¤Ï 0 ¤«¤é»Ï¤Þ¤ê¤Þ¤¹.
man 4 scsi ¤Ë¤è¤Ã¤Æ SCSI¥µ¥Ö¥·¥¹¥Æ¥à¤ÎºÇ¿·¤Î¾ðÊó¤ò ¥Á¥§¥Ã¥¯¤·¤Æ¤¯¤À¤µ¤¤. ¤è¤ê¾ÜºÙ¤Ê¥Û¥¹¥È¥¢¥À¥×¥¿¥É¥é¥¤¥Ð¤Î»È¤¤ Êý¤Ï, ¤¿¤È¤¨¤Ð Adaptec 294x¥É¥é¥¤¥Ð¤Î¾ì¹ç¤Ïman 4 ahc ¤Ë¤¢¤ê¤Þ¤¹.
·Ð¸³Åª¤Ë SCSI¥Ð¥¹¥ê¥»¥Ã¥È (¥Ö¡¼¥È»þ¤Ë¤ª¤¤Þ¤¹) ¸å¤ÎINQUIRY¥³¥Þ ¥ó¥É¤ËÂФ·¤Æ±þÅú¤¬ÃÙ¤¯¤Ê¤ë¥Ç¥Ð¥¤¥¹¤¬¤¢¤ê¤Þ¤¹. INQUIRY¥³¥Þ¥ó¥É¤Ï ¥Ö¡¼¥È»þ¤Ë¥«¡¼¥Í¥ë¤¬¤É¤Î¼ïÎà¤Î¥Ç¥Ð¥¤¥¹ (¥Ç¥£¥¹¥¯, ¥Æ¡¼¥×, CD-ROM¤Ê¤É) ¤¬¤É¤Î¥¿¡¼¥²¥Ã¥ÈID¤ËÀܳ¤µ¤ì¤Æ¤¤¤ë¤«¤òÄ´¤Ù¤ë¤¿¤á¤Ë ȯ¹Ô¤·¤Þ¤¹. ¤Á¤Ê¤ß¤Ë¤³¤Î¥×¥í¥»¥¹¤ò¥Ç¥Ð¥¤¥¹¥×¥í¡¼¥Ó¥ó¥° (¥Ç¥Ð¥¤¥¹¸¡½Ð) ¤È¸À¤¤¤Þ¤¹.
¡Ö±þÅú¤ÎÃÙ¤¤¥Ç¥Ð¥¤¥¹¡×¤ÎÌäÂê¤ò²ò·è¤¹¤ë¤¿¤á¤Ë, FreeBSD¤Ï SCSI¥Ð¥¹¤ò¥ê¥»¥Ã¥È¤·¤¿¸å¤Ë SCSI¥Ç¥Ð¥¤¥¹¤Î¸¡½Ð¤ò ¤ª¤³¤Ê¤¦¤Þ¤Ç¤Î¥Ç¥£¥ì¥¤¥¿¥¤¥à¤òÄ´À°¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹. ¥«¡¼¥Í¥ë¥³¥ó¥Õ¥£¥°¥ì¡¼¥·¥ç¥ó¥Õ¥¡¥¤¥ë¤Î²¼¤Ë¼¨¤¹¤è¤¦¤Ê ¹Ô¤Ë¥Ç¥£¥ì¥¤¥¿¥¤¥à¤òÀßÄꤷ¤Æ¤¯¤À¤µ¤¤.
options SCSI_DELAY=15 #Be pessimistic about Joe SCSI device
¤³¤Î¹Ô¤Ç¤Ï¥Ç¥£¥ì¥¤¥¿¥¤¥à¤Ï 15ÉäǤ¹. »ä¤Î¥·¥¹¥Æ¥à¤Ç¤Ï, ¿®Íê¤Ç¤¤ë¸Å¤¤ CD-ROM¤¬Ç§¼±¤Ç¤¤ë¤è¤¦¤Ë3ÉäÎÃͤò»È¤Ã¤Æ¤¤¤Þ¤¹. ¤â¤· ¥Ç¥Ð¥¤¥¹¤Îǧ¼±¤ÇÌäÂ꤬µ¯¤¤ë»þ¤ÏÂ礤ÊÃÍ (30ÉäǤ¢¤ë¤È¤«) ¤«¤é »Ï¤á¤Æ¤¯¤À¤µ¤¤. ¤¦¤Þ¤¯Æ°¤¤¤¿¤é, Ãͤò¸º¤é¤·¤Æ¤Á¤ç¤¦¤É¤è¤¤ÃÍ ¤Ë¥Á¥å¡¼¥Ë¥ó¥°¤·¤Æ¤¯¤À¤µ¤¤.
(ÌõÃí: rogue ¤ÏÍ̾¤Ê¥²¡¼¥à, ¤Ç¤Ï¤Ê¤¯¤Æ °ÅÞ, ·²¤«¤éÎ¥¤ì¤¿, ¶§Ë½¤Ê, ¤È¤¤¤¦°ÕÌ£)
SCSI ¤Îµ¬Äê¤Ï´°Á´¤Ç´Ê·é¤Ê¤â¤Î¤Ë¤·¤è¤¦¤È¤¤¤¦ ÅØÎϤϤµ¤ì¤Þ¤·¤¿¤¬, Ê£»¨¤Êµ¬Äê¤È¤Ê¤ê, Àµ³Î¤Ë¼Â¸½¤¹¤ë¤Î¤Ï´Êñ¤Ê¤³¤È¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó. ¤¤¤¯¤Ä¤«¤Î¥Ù¥ó¥À¤Ï¾¤è¤ê¤â¤è¤¤»Å»ö¤ò¤·¤Æ¤¤¤Þ¤¹.
¤³¤³¤Ç ``¥¤¥«¥ì¤¿'' ¥Ç¥Ð¥¤¥¹¤¬¸½¤ì¤ë¤³¤È¤Ë¤Ê¤ê¤Þ¤¹. ¤³¤Î¤è¤¦¤Ê ¥Ç¥Ð¥¤¥¹¤Ï FreeBSD ¤Î¥«¡¼¥Í¥ë¤Ë¤¤¤¯¤é¤«É¸½àŪ ¤Ç¤Ï¤Ê¤¤¿¶Éñ¤ò¤¹¤ë¤â¤Î¤Èǧ¼±¤µ¤ì¤Þ¤¹. ``¥¤¥«¥ì¤¿''¥Ç¥Ð¥¤¥¹¤Ï ¥Ö¡¼¥È»þ¤Ë¥«¡¼¥Í¥ë¤Ë¤è¤Ã¤ÆÊó¹ð¤µ¤ì¤Þ¤¹. ¼¡¤ÎÎã¤Ï»ä¤Î2¤Ä¤Î ¥«¡¼¥È¥ê¥Ã¥¸¥Æ¡¼¥×¥æ¥Ë¥Ã¥È¤Ç¤¹.
Feb 25 21:03:34 yedi /kernel: ahb0 targ 5 lun 0: <TANDBERG TDC 3600 -06:> Feb 25 21:03:34 yedi /kernel: st0: Tandberg tdc3600 is a known rogue Mar 29 21:16:37 yedi /kernel: aha0 targ 5 lun 0: <ARCHIVE VIPER 150 21247-005> Mar 29 21:16:37 yedi /kernel: st1: Archive Viper 150 is a known rogue
Î㤨¤Ð, ¤¢¤ë¥¿¡¼¥²¥Ã¥ÈID¤«¤é¼ÂºÝ¤Ë¤Ï1¤Ä¤Î¥Ç¥Ð¥¤¥¹¤·¤«¤Ê¤¤¤Î ¤Ë¤¹¤Ù¤Æ¤Î LUN¤«¤é¤Î±þÅú¤¬¤¢¤ë¤è¤¦¤Ê¥Ç¥Ð¥¤¥¹¤¬¤¢¤ë¤È¤·¤Þ¤¹. ¥«¡¼ ¥Í¥ë¤Ï¤½¤ÎÆÃÄê¤Î¥¿¡¼¥²¥Ã¥ÈID¤Ë8¸Ä¤Î LUN¤¬¤¢¤ë¤È¸í²ò¤·¤Æ¤·¤Þ¤¦ ¤«¤â¤·¤ì¤Þ¤»¤ó. ¤³¤Î¤è¤¦¤Êº®Íð¤Îµ¯¤¤ë¸¶°ø¤Ë¤Ä¤¤¤Æ¤ÏÆÉ¼Ô¤Ø ¤Î²ÝÂê¤Ë¤·¤Æ¤ª¤¤Þ¤¹.
FreeBSD¤Î SCSI¥µ¥Ö¥·¥¹¥Æ¥à¤Ï ¸¡½Ð»þ¤Î INQUIRY¤Î±þÅú¤ò¸«¤Æ °¤¤½¬´·¤ò»ý¤Ä¥Ç¥Ð¥¤¥¹¤Îǧ¼±¤ò¤·¤Æ¤¤¤Þ¤¹. INQUIRY¤Î±þÅú¤Ë¤Ï ¥Ç¥Ð¥¤¥¹¤Î¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Î¥Ð¡¼¥¸¥ç¥óÈֹ椬´Þ¤Þ¤ì¤ë¤¿¤á, °Û¤Ê¤ë ưºî¤ò¤¹¤ë¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Î¥Ð¡¼¥¸¥ç¥ó¤ò ¶èÊ̤¹¤ë¤³¤È¤â²Äǽ¤Ç¤¹. Î㤨¤Ð, /sys/scsi/st.c ¤ä /sys/scsi/scsiconf.c ¤ò ¸«¤Æ¤¯¤À¤µ¤¤. ¤É¤Î¤è¤¦¤Ë¹Ô¤Ã¤Æ¤¤¤ë¤«, ¤è¤ê¿¤¯¤Î¾ðÊ󤬤¢¤ê¤Þ¤¹.
¤³¤ÎÊýË¡¤Ï¤¦¤Þ¤¯¹Ô¤¤Þ¤¹¤¬, ¤â¤Á¤í¤ó´ûÃΤΥǥХ¤¥¹¤¬¤Ä¤Ê¤¬¤Ã ¤Æ¤¤¤ë¾ì¹ç¤À¤±¤¦¤Þ¤¯¤¤¤¯¤È¤¤¤¦¤³¤È¤Ë µ¤¤ò¤Ä¤±¤ëɬÍפ¬¤¢¤ê¤Þ¤¹. ¤â¤·¤¢¤Ê¤¿°ÊÁ°¤Ë Mumbletech SCSI CD-ROM (ÌõÃí: ²Í¶õ¤Î¥á¡¼¥« ¤Î¥Ç¥Ð¥¤¥¹¤Ç¤¹) ¤òÀܳ¤·¤¿¿Í¤¬¤¤¤Ê¤¤¤È¤·¤¿¤é, ¤É¤ó¤Ê ¡Ö¥ï¥¶¡× ¤ò»È¤Ã¤Æ¤½¤ì¤ò»È¤¦¤«¼«Ê¬¤Ç¸«¤Ä¤±¤Ê¤¤¤È ¤¤¤±¤Ê¤¤¤«¤â¤·¤ì¤Þ¤»¤ó.
¤¢¤Ê¤¿¤Î Mubletech ¤òư¤«¤¹¤³¤È¤¬¤Ç¤¤¿¤é¤½¤ÎÀ®²Ì¤ò FreeBSD¤Î ¼¡¤Î¥ê¥ê¡¼¥¹¤Ø´Þ¤á¤ë¤¿¤á¤Ë FreeBSD³«È¯¥Á¡¼¥à¤ØÁ÷¤Ã¤Æ¤¯¤À¤µ ¤¤. ¾¤Î Mumbletech¤ÎÍøÍѼԤ¿¤Á¤Ï¤¢¤Ê¤¿¤Ë´¶¼Õ¤¹¤ë¤Ç¤·¤ç¤¦.
ñ°ì¤Î SCSI ID¾å¤ËÊ£¿ô¤ÎÏÀÍý¥æ¥Ë¥Ã¥È (LUN) ¤ò»ý¤Ä¥Ç¥Ð¥¤¥¹¤ò»È¤¦ ¤è¤¦¤Ê¾ì¹ç¤â¤¢¤ë¤«¤â¤·¤ì¤Þ¤»¤ó. ¿¤¯¤Î¾ì¹ç¤Ç¤Ï FreeBSD¤Ï LUN 0 ¤Î¤ß¤ò¸¡½Ð¤·¤Þ¤¹. ¤³¤Î¤è¤¦¤ÊÎã¤È¤·¤Æ¤Ï2Âæ¤Î SCSI¤Ç¤Ï¤Ê¤¤¥Ï¡¼¥É ¥Ç¥£¥¹¥¯¤ò SCSI¥Ð¥¹¤Ë¤Ä¤Ê¤°¥Ö¥ê¥Ã¥¸¥Ü¡¼¥É (Î㤨¤Ð¸Å¤¤ Sun¥·¥¹¥Æ ¥à¤Ë¸«¤é¤ì¤ë Emulex MD21) ¤¬¤¢¤ê¤Þ¤¹.
LUN ¤¬0¤Ç¤Ï¤Ê¤¤¥Ç¥Ð¥¤¥¹¤ÏÉáÄ̤ϥ·¥¹¥Æ¥à¥Ö¡¼¥È»þ¤Î¸¡½Ð¤Ç¤Ï ¸«¤Ä¤«¤ê¤Þ¤»¤ó. ¤³¤ÎÌäÂê¤Ë¤¦¤Þ¤¯Âн褹¤ë¤Ë¤Ï /sys/scsi/scsiconf.c ¤ËŬÀڤʥ¨¥ó¥È¥ê¤ò²Ã¤¨¤Æ¥«¡¼¥Í¥ë¤òºÆ¹½ÃÛ ¤·¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó.
°Ê²¼¤Î¤è¤¦¤Ë½é´ü²½¤µ¤ì¤Æ¤¤¤ë¹½Â¤ÂΤòõ¤·¤Þ¤¹.
{ T_DIRECT, T_FIXED, "MAXTOR", "XT-4170S", "B5A", "mx1", SC_ONE_LU }
LUN¤¬Ê£¿ô¤¢¤ë¤¢¤Ê¤¿¤Î Mumbletech BRIDGE2000 ¤Ï¥Ï¡¼¥É¥Ç¥£¥¹¥¯ ¤È¤·¤ÆÆ¯¤¤Þ¤¹. ¤Þ¤¿¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Î¥ê¥Ó¥¸¥ç¥ó123¤Ê¤É¤ò¼¡¤Î¤è ¤¦¤Ë½ñ¤²Ã¤¨¤Þ¤¹.
{ T_DIRECT, T_FIXED, "MUMBLETECH", "BRIDGE2000", "123", "sd", SC_MORE_LUS }
ÌõÃí: Ê£¿ô LUN¤ËÂбþ¤¹¤ë¤¿¤á¤Ë¤Ï¹½Â¤ÂΤκǸå¤ÎÍ×ÁǤò SC_MORE_LUS¤Ë¤·¤Þ¤¹. ¥¨¥ó¥È¥ê¤òºî¤ëɬÍפ¬¤¢¤ë¾ì¹ç¤Ï scsiconf.c ¤Ë¤¢¤ë MBR-7Åù¤Î¥¨¥ó¥È¥ê¤ò»²¹Í¤Ë¤¹¤ë¤È¤¤¤¤¤Ç¤·¤ç¤¦.
¥«¡¼¥Í¥ë¤Ï INQUIRY¤Ë°ìÃפ¹¤ë¥Ç¡¼¥¿¤ò¥Ö¡¼¥È»þ¤Ë¥Æ¡¼¥Ö¥ë¤«¤é õ¤·¤Æ¤³¤ì¤Ë¤·¤¿¤¬¤Ã¤Æ¤Õ¤ë¤Þ¤¤¤Þ¤¹. ¤è¤ê¿¤¯¤Î¾ðÊó¤Ï ¥½¡¼¥¹¥³¡¼¥É¤ò¸«¤Æ¤¯¤À¤µ¤¤.
ºÇ¶á¤Î SCSI ¥Ç¥Ð¥¤¥¹, ÆÃ¤Ë¼§µ¤¥Ç¥£¥¹¥¯¤Ç¤Ï¥¿¥° ¥³¥Þ¥ó¥É ¥¥å¡¼¥¤¥ó¥° (tagged command queuing: TCQ) ¤¬¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤Þ¤¹.
Í×Ì󤹤ì¤Ð, TCQ ¤ÏÊ£¿ô¤Î I/O ¥ê¥¯¥¨¥¹¥È¤òƱ»þ¤Ë¼õ¤±¤ë¤³¤È¤ò²Äǽ ¤Ë¤¹¤ë¤³¤È¤Ç¤¹. ¥Ç¥Ð¥¤¥¹¤Ï¥¤¥ó¥Æ¥ê¥¸¥§¥ó¥È¤Ç¤¹¤«¤é,¥ê¥¯¥¨¥¹¥È ¥¥å¡¼¤Ë¤¢¤ë½èÍý (¥Ø¥Ã¥É¤Î¥Ý¥¸¥·¥ç¥Ë¥ó¥°¤Ê¤É) ¤ÎºÇŬ²½¤ò ¤ª¤³¤Ê¤¦¤³¤È¤¬¤Ç¤¤Þ¤¹. RAID (Redundant Array of Independent Disks) ¤Î¤è¤¦¤ÊSCSI¥Ç¥Ð¥¤¥¹¤Ç¤ÏTCQµ¡Ç½¤Ï¥Ç¥Ð¥¤¥¹¤Î»ý¤ÄÊÂÎóÀ¤Î ÍøÅÀ¤òÀ¸¤«¤¹¤¿¤á¤ËÉԲķç¤Ç¤¹.
³Æ¡¹¤Î I/O ¥ê¥¯¥¨¥¹¥È¤Ïñ°ì¤Î ``tag'' (¥¿¥° ¥³¥Þ¥ó¥É ¥¥å¡¼¥¤¥ó ¥°¤Î̾Á°¤ÎͳÍè) ¤¬Í¿¤¨¤é¤ì¤Þ¤¹. FreeBSD¤Ï¤³¤Î tag¤Ë¤è¤ê¥Ç¥Ð ¥¤¥¹¥É¥é¥¤¥Ð¤Î¥¥å¡¼¤ÎÃæ¤Î¤É¤Î I/O¥ê¥¯¥¨¥¹¥È¤¬´°Î»¤·¤¿¤«¤Î ¼± Ê̤ò¤ª¤³¤Ê¤¤¤Þ¤¹.
TQC ¤Î¥ê¥¯¥¨¥¹¥È¤Ï¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð¤¬ ¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤¿¤È¤·¤Æ¤â ¤¢¤ë¥Ç¥Ð¥¤¥¹¤Î¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Ç¤Ï¥¤¥ó¥×¥ê¥á¥ó¥È¤¬ ``Àµ¤·¤¯¤Ê¤¤'' ¤«¤â¤·¤ì¤Þ¤»¤ó. ¤³¤Î¤è¤¦¤ÊÌäÂê¤Ë½Ð²ñ¤¦¤ÈÈó¾ï¤ËÉԲIJò¤ÊÌäÂê¤Ë ¤Ä¤Ê¤¬¤ê¤Þ¤¹. ¤³¤Î¤è¤¦¤Ê¾ì¹ç¤Ï TCQ ¤ò̵¸ú¤Ë¤·¤Æ¤ß¤Æ¤¯¤À¤µ¤¤.
¤¹¤Ù¤Æ¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó¤¬Â¿¤¯¤Î SCSI¥Û¥¹¥È¥¢¥À¥×¥¿¤Ï ¥Ð¥¹¥Þ¥¹¥¿¥³¥ó¥È¥í¡¼¥é¤Ç¤¹. ¤³¤ì¤Ï¥Û¥¹¥ÈCPU¤Ë¥Ç¡¼¥¿Å¾Á÷¤Î Éé²Ù¤ò¤«¤±¤º, ¥Ü¡¼¥É¼«¿È¤¬I/O¤ò¤ª¤³¤Ê¤¤¤Þ¤¹.
¤³¤ì¤Ï FreeBSD¤Î¤è¤¦¤Ê¥Þ¥ë¥Á¥¿¥¹¥¯¤Î¥ª¥Ú¥ì¡¼¥Æ¥£¥ó¥°¥·¥¹¥Æ¥à ¤Ç¤ÏÂ礤ÊÍøÅÀ¤Ë¤Ê¤ê¤Þ¤¹. ¤·¤«¤·, ²¿¤é¤«¤ÎÌäÂê¤Îµ¯¤¤ë¤³¤È¤â ¤¢¤ê¤Þ¤¹.
Î㤨¤Ð Adaptec 1542 ¥³¥ó¥È¥í¡¼¥é¤Ï ¥Û¥¹¥È¥Ð¥¹ (¤³¤³¤Ç¤Ï ISA ¤Þ¤¿¤Ï AT ¥Ð¥¹) ¤ò°Û¤Ê¤Ã¤¿Å¾Á÷®ÅÙ¤ËÀßÄê¤Ç¤¤Þ¤¹. ¥³¥ó¥È¥í¡¼¥é¤¬ °Û¤Ê¤ë¥ì¡¼¥È¤ËÀßÄê¤Ç¤¤ë¤Î¤Ï ¤¹¤Ù¤Æ¤Î¥Þ¥¶¡¼¥Ü¡¼¥É¤Ç ¹â®¤ÊžÁ÷¤¬ ¤Ç¤¤ë¤ï¤±¤Ç¤Ï¤Ê¤¤¤«¤é¤Ç¤¹. ¥Þ¥¶¡¼¥Ü¡¼¥É¤Ë¹ç¤Ã¤Æ¤¤¤Ê¤¤¹â®¤Î ¥Ç¡¼¥¿Å¾Á÷®ÅÙ¤òÍѤ¤¤¿»þ¤Ë¤Ï, ¥Ï¥ó¥°¥¢¥Ã¥×¤ä¥Ç¡¼¥¿¤Î»½ýÅù¤Î ÌäÂ꤬µ¯¤¤ë¤«¤â¤·¤ì¤Þ¤»¤ó.
¤³¤ì¤ò²ò·è¤¹¤ëÊýË¡¤ÏÌÀ¤é¤«¤Ç¤¹. ¤è¤êÄ㤤¥Ç¡¼¥¿Å¾Á÷®ÅÙ¤ËÀßÄê ¤·¤Æ¤¦¤Þ¤¯Æ°¤¯¤«³Î¤«¤á¤ë¤³¤È¤Ç¤¹.
Adaptec 1542 ¤Î¾ì¹ç, ²Äǽ¤Ê¸Â¤ê¹â®¤ÊžÁ÷¥ì¡¼¥È¤òưŪ¤ËÆÉ¤ß¼è¤Ã¤Æ, Àµ¤·¤¤·èÄê¤ò¤ª¤³¤Ê¤¦¤¿¤á¤Î¥ª¥×¥·¥ç¥ó¤ò ¥«¡¼¥Í¥ë¥³¥ó¥Õ¥£¥°¥Õ¥¡¥¤¥ë¤Ë Äɲ乤뤳¤È¤¬¤Ç¤¤Þ¤¹. ¤³¤Î¥ª¥×¥·¥ç¥ó¤Ï¥Ç¥Õ¥©¥ë¥È¤Ç¤Ï̵¸ú¤Ë ¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
options "TUNE_1542" #dynamic tune of bus DMA speed
¤¢¤Ê¤¿¤Î»È¤¦¥Û¥¹¥È¥¢¥À¥×¥¿¤Ë¤Ä¤¤¤Æ¤Î¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸¤ò ¥Á¥§¥Ã¥¯¤·¤Æ¤¯¤À¤µ¤¤. ¤Þ¤¿ºÇ½ªÅª¤Ê¼êÃʤȤ·¤Æ¤Ïµæ¶Ë¤Î¥É¥¥å¥á¥ó¥È¤ò »È¤Ã¤Æ¤¯¤À¤µ¤¤ (¤Ä¤Þ¤ê¥É¥é¥¤¥Ð¤Î¥½¡¼¥¹¤òÆÉ¤ó¤Ç¤¯¤À¤µ¤¤¤È¤¤¤¦¤³ ¤È¤Ç¤¹).
ÌõÃí: 2.1.5R ¤Î»þÅÀ¤Ç¤Ï¤¹¤Ù¤Æ¤Î¥É¥é¥¤¥Ð¤Ë´Ø¤·¤Æ¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸ ¤¬¤¢¤ë¤ï¤±¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó. ¤Þ¤¿¾å¤ÎÎã¤Î TUNE_1542¤Î¥ª¥×¥·¥ç¥ó ¤â man aha ¤Ë¤Ï¤Ê¤¤¤è¤¦¤Ç¤¹. ¥½¡¼¥¹¤Î¥³¥á¥ó¥È¤À¤±¤Ç ¤â°ìÅÙ¸«¤Æ¤ª¤¤¤Æ¤â¤¤¤¤¤«¤â¤·¤ì¤Þ¤»¤ó.
°Ê²¼¤Ï SCSI ¤Ç°ìÈÌŪ¤ËÌäÂ꤬µ¯¤¤¿¾ì¹ç¤Ë²ò·è¤ò¤¹¤ë¤¿¤á¤Î¥Á¥§¥Ã ¥¯¥ê¥¹¥È¤Î»î¤ß¤Ç¤¹. ¤³¤ì¤Ï´°Á´¤Êʪ¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó.
¥³¥Í¥¯¥¿¤È¥±¡¼¥Ö¥ë¤¬¤æ¤ë¤ó¤Ç¤¤¤Ê¤¤¤«¥Á¥§¥Ã¥¯¤¹¤ë.
¥¿¡¼¥ß¥Í¡¼¥¿¤Î¾ì½ê¤È¿ô¤òǰ¤Ë¤Ïǰ¤òÆþ¤ì¤Æ ¥Á¥§¥Ã¥¯¤¹¤ë.
¾¯¤Ê¤¯¤È¤â 1 ¤Ä¤Î¥¿¡¼¥ß¥Í¡¼¥¿¤ÎÅŸ»¤Î¶¡µë¸»¤¬¤¢¤ë¤«¥Á¥§¥Ã¥¯ ¤¹¤ë (ÆÃ¤Ë³°Éô¥¿¡¼¥ß¥Í¡¼¥¿¤ò»È¤¦¾ì¹ç).
¥¿¡¼¥²¥Ã¥ÈID¤¬½ÅÊ£¤·¤Æ¤¤¤Ê¤¤¤«¥Á¥§¥Ã¥¯¤¹¤ë.
»ÈÍѤ¹¤ë¤¹¤Ù¤Æ¤Î¥Ç¥Ð¥¤¥¹¤ÎÅŸ»¤¬ ON ¤Ë¤Ê¤Ã¤Æ¤¤¤ë¤«¥Á¥§¥Ã¥¯¤¹¤ë.
ɬÍ׺Ǿ®¸Â¤Î¥Ç¥Ð¥¤¥¹¤À¤±¤Î¹½À®¤ò»î¤·¤Æ¤ß¤ë.
²Äǽ¤Ç¤¢¤ì¤Ð, ¥Û¥¹¥È¥¢¥À¥×¥¿¤Î¥¹¥Ô¡¼¥É¤òÃÙ¤¯¤¹¤ë.
ÌäÂê¤ò¤è¤êñ½ã¤Ë¤¹¤ë¤¿¤á¤Ë, ¥¿¥°¥³¥Þ¥ó¥É¥¥å¡¼¥¤¥ó¥°¤ò²Äǽ ¤Ç¤¢¤ì¤Ð̵¸ú¤Ë¤¹¤ë. (NCR¥Ù¡¼¥¹¤Î¥Û¥¹¥È¥¢¥À¥×¥¿¤Ë¤Ä¤¤¤Æ¤Ï man ncrcontrol ¤ò¸«¤Æ¤¯¤À¤µ¤¤)
¥«¡¼¥Í¥ë¤Î¥³¥ó¥Ñ¥¤¥ë¤¬¤Ç¤¤ë¤Î¤Ç¤¢¤ì¤Ð, SCSIDEBUG¥ª¥×¥·¥ç ¥ó¤ò¤Ä¤±¤Æ make¤·¤Æ, ¥Ç¥Ð¥¤¥¹¤ò¥Ç¥Ð¥Ã¥°¥â¡¼¥É¤Ë¤·¤Æ¥¢¥¯¥» ¥¹¤·¤Æ¤ß¤Æ¤¯¤À¤µ¤¤. ¤â¤·¤½¤ì¤Ç¤âµ¯Æ°»þ¤Ë¥Ç¥Ð¥¤¥¹¤¬¸¡½Ð ¤µ¤ì¤Ê¤¤¤Î¤Ç¤¢¤ì¤Ð, ¥Ç¥Ð¥¤¥¹¤ÎÀßÄꥢ¥É¥ì¥¹¤¬´Ö°ã¤Ã¤Æ¤¤¤ë ¤Î¤«¤â¤·¤ì¤Þ¤»¤ó. ¤Þ¤¿, /sys/scsi/scsidebug.h ¤Ë ¤¢¤ë¥Ç¥Ð¥Ã¥°¥ì¥Ù¥ë¤òÊѤ¨¤Æ¤ß¤Æ¤¯¤À¤µ¤¤. ¸¡½Ð¤Ï¤µ¤ì¤ë¤¬ ư¤«¤Ê¤¤¤Î¤Ç¤¢¤ì¤Ð, scsi(8) ¥³¥Þ¥ó¥É¤Ç (SCSIDEBUG ¤ò¤Ä¤±¤Æmake¤·¤¿) ¥«¡¼¥Í¥ë¤¬Æ°¤¤¤Æ¤¤¤ë¾õÂÖ¤ÇÆ°Åª¤Ë¥Ç¥Ð¥Ã¥° ¥ì¥Ù¥ë¤òÀßÄꤹ¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹. ¤³¤ì¤Ï guru (UNIX¤Îã¿Í) ¤Ç ¤âº®Í𤷤Ƥ·¤Þ¤¦¤Û¤É¤ÎÈó¾ï¤ËÂçÎ̤ΥǥХå°¾ðÊó¤ò ½Ð¤¹¤Ç¤·¤ç ¤¦. man 4 scsi ¤Ë¤Ï¤è¤êÀµ³Î¤Ê¾ðÊ󤬤¢¤ê¤Þ¤¹. ¤Þ¤¿man 8 scsi ¤â¸«¤Æ¤¯¤À¤µ¤¤.
¤â¤·¤¢¤Ê¤¿¤¬¤¤¤¯¤é¤«¤ÏËܵ¤¤Ç SCSI¥Ï¥Ã¥¥ó¥°¤ò¤¹¤ëµ¤¤¬¤¢¤ë¤Ê¤é ¤¿¤Ö¤óÀµµ¬¤Îµ¬³Ê¤ò»ý¤Ã¤Æ¤¤¤¿¤¯¤Ê¤ë¤Ç¤·¤ç¤¦.
¾µÇ§¤º¤ß¤Î¥¢¥á¥ê¥«¹©¶Èµ¬³Ê¤Ï ANSI ¤«¤é¹ØÆþ¤Ç¤¤Þ¤¹. ½»½ê¤ÈÅÅÏÃÈÖ¹æ¤Ï
13th Floor
11 West 42nd Street
New York
NY 10036
Sales Dept: (212)
642-4900
¤Þ¤¿, ANSI¤Îµ¬³Ê¤ª¤è¤Ó°Ñ°÷²ñ¤Îµ¬³Ê°Æ (¥É¥é¥Õ¥È) ¤Î¤Û¤È¤ó¤É¤Ï Global Engineering Documents ¤è¤êÇ㤦¤³¤È¤¬¤Ç¤¤Þ¤¹. Ï¢ÍíÀè¤Ï
15 Inverness Way East
Englewood
CO, 80112-5704
Phone: (800) 854-7179
Outside USA and Canada: (303)
792-2181
Fax: (303) 792- 2192
X3T10 ¤Î¥É¥é¥Õ¥È¤Î¿¤¯¤ÏÅÅ»ÒŪ¤ËÍøÍѤǤ¤ë·Á¤Ç SCSI BBS (719-574-0424) ¤È ncrinfo.ncr.com ¤Î Anonymous FTP (ï¤Ç¤â ¥Õ¥¡¥¤¥ë¤ò¼è¤Ã¤Æ¤¯¤ë¤³¤È¤¬¤Ç¤¤ëFTP¥µ¡¼¥Ó¥¹) ¥µ¥¤¥È¤«¤éÆÀ¤ë¤³ ¤È¤¬¤Ç¤¤Þ¤¹.
ºÇ¿·¤Î X3T10°Ñ°÷²ñ¤Î¥É¥¥å¥á¥ó¥È¤Ï:
AT Attachment (ATA or IDE) [X3.221-1994] (Approved)
ATA Extensions (ATA-2) [X3T10/948D Rev 2i]
Enhanced Small Device Interface (ESDI) [X3.170-1990/X3.170a-1991] (Approved)
Small Computer System Interface --- 2 (SCSI-2) [X3.131-1994] (Approved)
SCSI-2 Common Access Method Transport and SCSI Interface Module (CAM) [X3T10/792D Rev 11]
ÄɲþðÊó¤òÆÀ¤ë¤³¤È¤Î¤Ç¤¤ë½ÐÈÇʪ¤Ï:
``SCSI: Understanding the Small Computer System Interface'', NCR¼Ò ÊÔ. ½ÐÈÇ: Prentice Hall, Englewood Cliffs, NJ, 07632 Phone: (201) 767-5937 ISBN 0-13-796855-8
``Basics of SCSI'', a SCSI tutorial, Ancot Corporation ÊÔ Ancot ¤ÎÏ¢ÍíÀè: Phone: (415) 322-5322 Fax: (415) 322-0455
``SCSI Interconnection Guide Book'', AMP¼Ò¤Î½ÐÈÇʪ (ȯ¹Ô 4/93, ¥« ¥¿¥í¥° 65237) ¿§¡¹¤Ê SCSI ¥³¥Í¥¯¥¿¤Î¥ê¥¹¥È ¤È ¥±¡¼¥Ö¥ëÀܳÊýË¡¤Î¥¬¥¤¥É. AMP ¼Ò¤è¤êÆþ¼ê²Äǽ. (800) 522-6752 ¤Þ¤¿¤Ï (717) 564-0100
``Fast Track to SCSI'', ÉÙ»ÎÄ̤ˤè¤ë¥×¥í¥À¥¯¥È¥¬¥¤¥É, Æþ¼êÀè: Prentice Hall, Englewood Cliffs, NJ, 07632 ÅÅÏÃ: (201) 767-5937 ISBN 0-13-307000-X
``The SCSI Bench Reference'', ``The SCSI Encyclopedia'', ``SCSI Tutor'', ENDL Publications, 14426 Black Walnut Court, Saratoga CA, 95070 ÅÅÏÃ: (408) 867-6642
``Zadian SCSI Navigator'' (¥¯¥¤¥Ã¥¯¥ê¥Õ¥¡¥ì¥ó¥¹) ¤ª¤è¤Ó ``Discover the Power of SCSI'' (ºÇ½é¤ÎËܤÏ1»þ´Ö¤Î¥Ó¥Ç¥ª¤È¥Á¥å¡¼¥È¥ê¥¢¥ë¤¬ÉÕ°), Zadian Software, Suite 214, 1210 S. Bascom Ave., San Jose, CA 92128, (408) 293-0800
Usenet ¤Î¥Ë¥å¡¼¥¹¥°¥ë¡¼¥× comp.periphs.scsi ¤È comp.periphs ¤ÏÆÃ¤Ë¤è¤ê¿¤¯¤Î¾ðÊó¤òÆÀ¤ë¤Ë¤ÏÃíÌܤ¹¤Ù¤¾ì½ê¤Ç¤¹. ¤Þ¤¿Äê´üŪ¤Ë ¥Ý¥¹¥È¤µ¤ì¤ë SCSI-FAQ¤ò¤³¤³¤«¤éÆÀ¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹.
¿¤¯¤Î¼çÍ×¤Ê SCSI¥Ç¥Ð¥¤¥¹¤È¥Û¥¹¥È¥¢¥À¥×¥¿¤Î¶¡µë¸µ¤Ï FTP ¥µ¥¤¥È ¤ä BBS¤ò³«¤¤¤Æ¤¤¤Þ¤¹. ¤³¤ì¤é¤Ï¤¢¤Ê¤¿¤Î»ý¤Ã¤Æ¤¤¤ë¥Ç¥Ð¥¤¥¹¤Ë´Ø¤¹ ¤ëµ®½Å¤Ê¾ðÊ󸻤Ȥʤë¤Ç¤·¤ç¤¦.
´ó¹Æ: Àõ¸« ¸ <asami@FreeBSD.ORG> . 17 February 1998.
Ìõ: µÜ²¼·òÊå <miyasita@hashilab.ee.ous.ac.jp>. 20 February 1998.
SCSI ¤Î¾Ï¤Ç½Ò¤Ù¤¿¤è¤¦¤Ë, ¼ÂºÝ, ¸½ºßÈÎÇ䤵¤ì¤Æ¤¤¤ë SCSI ¥Ï¡¼¥É¥Ç¥£¥¹¥¯ÁõÃ֤Ϥ¹¤Ù¤Æ SCSI-2 ¸ß´¹¤Ç¤¢¤ê, ¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë SCSI ¥Û¥¹¥È¥¢¥À¥×¥¿¤Ë Àܳ¤¹¤ì¤Ð¤½¤ì¤é¤ÏÀµ¾ï¤Ëưºî¤¹¤ë¤Ç¤·¤ç¤¦. ¿Í¡¹¤¬Ä¾Ì̤¹¤ëÌäÂê¤Î¿¤¯¤Ï, ¥±¡¼¥Ö¥ëÀܳ¤¬´Ö°ã¤Ã¤Æ¤¤¤¿¤ê (¥±¡¼¥Ö¥ë¤¬Ä¹²á¤®¤ë, ¥¹¥¿¡¼·¿Àܳ¤Ë¤Ê¤Ã¤Æ¤¤¤ë, ¤Ê¤É), ¥±¡¼¥Ö¥ë½ªÃ¼¤Î½èÍý¤¬ÉÔ½½Ê¬¤À¤Ã¤¿¤ê, ÉôÉʤ¬¸Î¾ã¤·¤Æ¤¤¤¿¤ê¤Î¤¦¤Á¤Î¤É¤ì¤«¤Ç¤¹. SCSI ¥Ï¡¼¥É¥Ç¥£¥¹¥¯ÁõÃÖ¤¬Æ°ºî¤·¤Ê¤¤¤È¤¤Ë¤Ï, ¤Þ¤º SCSI ¤Î¾Ï¤ò»²¾È¤·¤Æ²¼¤µ¤¤. ¤·¤«¤· SCSI ¥Ï¡¼¥É¥Ç¥£¥¹¥¯ÁõÃÖ¤ò¹ØÆþ¤¹¤ë¤È¤¤Ë µ¤¤òÉÕ¤±¤Æ¤ª¤¤¿¤¤¤³¤È¤¬¤Õ¤¿¤Ä¤¢¤ê¤Þ¤¹.
¸½ºßÈÎÇ䤵¤ì¤Æ¤¤¤ë SCSI ¥É¥é¥¤¥Ö¤Î²óž®ÅÙ¤ÎÈÏ°Ï¤Ï 4,500RPM ¤«¤é 10,000RPM ¤Ç¤¢¤ê, ¤½¤ÎÂçÉôʬ¤Ï 5,400RPM ¤« 7,200RPM ¤Ç¤¹. °ìÈÌŪ¤Ë 7,200RPM ¤Î¥É¥é¥¤¥Ö¤ÎÊý¤¬¥Ç¡¼¥¿Å¾Á÷¤Ï®¤¤¤Î¤Ç¤¹¤¬, 5,400RPM ¤ÎÆ±ÍÆÎ̤Τâ¤Î¤ÈÈæ¤Ù¤Æ¤È¤Æ¤âÇ®¤¯¤Ê¤ê¤Þ¤¹. ¸½ºß¤Î¥Ç¥£¥¹¥¯ÁõÃ֤θξã¤ÎÂçȾ¤ÏÇ®¤Ë¤è¤ë¤â¤Î¤Ç¤¹. ¤â¤· PC ¤Î¥±¡¼¥¹¤ÎÃæ¤¬Èó¾ï¤Ë¤è¤¯ÎäµÑ¤µ¤ì¤Æ¤¤¤Ê¤±¤ì¤Ð, 5,400RPM ¤«¤½¤ì°Ê²¼¤Î¥É¥é¥¤¥Ö¤Ë¤·¤Æ¤ª¤¤¤¿Êý¤¬¤è¤¤¤Ç¤·¤ç¤¦.
¤è¤ê¹âÌ©Å٤ǵϿ¤¹¤ë¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤ë¿·¤·¤¤¥É¥é¥¤¥Ö¤Ï °ÊÁ°¤Î¤â¤Î¤ËÈæ¤Ù¤Æ¤è¤ê¿¤¯¤Î¥Ó¥Ã¥È¤ò ³Æ²óžËè¤ËžÁ÷¤¹¤ë¤³¤È¤¬ ¤Ç¤¤ë¤È¤¤¤¦¤³¤È¤Ëµ¤¤ò¤Ä¤±¤Æ²¼¤µ¤¤. ¸½ºß, 5,400RPM ¤ÎºÇ¹âµéµ¡¼ï¤Ç¤Ï 1, 2 À¤ÂåÁ°¤Î 7,200RPM ¤Î ¥É¥é¥¤¥Ö¤ËɤŨ¤¹¤ëžÁ÷®ÅÙ¤¬½Ð¤»¤Þ¤¹. »ÅÍͰìÍ÷¤«¤é¥Ð¥ó¥ÉÉý¤Î¿ôÃͤòõ¤¹¤Ë¤Ï ``ÆâÉô¥Ç¡¼¥¿ (¤Þ¤¿¤ÏžÁ÷) ®ÅÙ'' ¤È¤¤¤¦Íó¤ò¸«¤Æ²¼¤µ¤¤. Ä̾綠¤Î¿ôÃÍ¤Ï Mbits/s ¤Ç½ñ¤«¤ì¤Æ¤¤¤ë¤Î¤Ç, ¤½¤ì¤ò 8 ¤Ç³ä¤ì¤Ð¤½¤Î¥É¥é¥¤¥Ö¤Ç½Ð¤»¤ë®ÅÙ¤¬ Mbytes/s ¤Ç ¤ª¤ª¤è¤½¸«Åö¤ò¤Ä¤±¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹.
(¤â¤·¤¢¤Ê¤¿¤¬¥¹¥Ô¡¼¥É¶¸¤Ç, ¤¢¤Ê¤¿¤Î°¦¤¹¤ë¾®¤µ¤Ê¥Ñ¥½¥³¥ó¤Á¤ã¤ó¤Ë 10,000RPM ¤Î¥É¥é¥¤¥Ö¤òºÜ¤»¤¿¤¤¤Î¤Ê¤é¤½¤¦¤·¤Æ¤â¹½¤¤¤Þ¤»¤ó¤¬, ¤½¤Î¤è¤¦¤Ê¥É¥é¥¤¥Ö¤Ï¤â¤Î¤¹¤´¤¯Ç®¤¯¤Ê¤ê¤Þ¤¹. ¥É¥é¥¤¥Ö¤Ø ľÀÜ É÷¤òÅö¤Æ¤é¤ì¤ë¤è¤¦¤Ê¥Õ¥¡¥ó¤ä ¤¤Á¤ó¤È´¹µ¤¤µ¤ì¤Æ¤¤¤ë¥Ç¥£¥¹¥¯¶è²è¤ò»ý¤Ã¤Æ¤¤¤Ê¤¤¤È¤¤Ë¤Ï ¤½¤¦¤¤¤¦¤³¤È¤Ï¹Í¤¨¤Ê¤¤Êý¤¬¤è¤¤¤Ç¤·¤ç¤¦.)
ºÇ¿·¤Î 10,000RPM ¤Î¥É¥é¥¤¥Ö¤ä 7,200RPM ¤Î¥É¥é¥¤¥Ö¤ÏÅöÁ³ ºÇ¿·¤Î 5,400RPM ¤Î¥É¥é¥¤¥Ö¤è¤ê¤â¿¤¯¤Î¥Ç¡¼¥¿¤òžÁ÷¤¹¤ë¤³¤È¤¬ ¤Ç¤¤Þ¤¹¤«¤é, ÀäÂÐŪ¤Ê¥Ð¥ó¥ÉÉý¤¬¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ë¤È¤Ã¤Æ ɬÍפʤé¤Ð, ¤è¤ê®¤¤¥É¥é¥¤¥Ö¤òÁª¤Ö¤·¤«¤¢¤ê¤Þ¤»¤ó. ¤Þ¤¿, ¥ì¥¤¥Æ¥ó¥·¤ò¾®¤µ¤¯¤¹¤ëɬÍפ¬¤¢¤ë¤È¤¤â, ¤è¤ê®¤¤¥É¥é¥¤¥Ö¤¬Å¬Åö¤Ç¤¹. ¤Ê¤¼¤Ê¤é, ¤è¤ê®¤¤¥É¥é¥¤¥Ö¤ÎÊý¤¬Ê¿¶Ñ¥·¡¼¥¯»þ´Ö¤¬ ¾¯¤Ê¤¤¤À¤±¤Ç¤Ê¤¯, ²óžÃÙ±ä¤È¤¤¤¦¼ÜÅ٤ˤª¤¤¤Æ Äã²óž®Å٤Υɥ饤¥Ö¤¬¹â²óž®Å٤Τâ¤Î¤Ë ¾¡¤ë¤³¤È¤Ï¤Ê¤¤¤«¤é¤Ç¤¹. (Ê¿¶Ñ²óž¥ì¥¤¥Æ¥ó¥·¤Ï¥Ç¥£¥¹¥¯¤¬ 1 ²óž¤¹¤ë¤¿¤á¤ËÍפ¹¤ë»þ´Ö¤òȾʬ¤Ë ¤·¤¿¤â¤Î¤Ç¤¹. ¤¹¤Ê¤ï¤Á, 10,000RPM ¤Î¥É¥é¥¤¥Ö¤Ç¤Ï 3 ms, 7,200RPM ¤Î¥É¥é¥¤¥Ö¤Ç¤Ï 4.2 ms, 5,400RPM ¤Î¥É¥é¥¤¥Ö¤Ç¤Ï 5.6 ms ¤È¤Ê¤ê¤Þ¤¹.) ¥ì¥¤¥Æ¥ó¥·¤Ï¥·¡¼¥¯»þ´Ö¤È²óžÃÙ±ä¤È¤ÎϤˤʤê¤Þ¤¹. ¤·¤«¤·¤³¤³¤Ç, ¥ì¥¤¥Æ¥ó¥·¤Î¾¯¤Ê¤¤¥É¥é¥¤¥Ö¤¬Íߤ·¤¤¤Î¤«, 1 É䢤¿¤ê¤Î¥¢¥¯¥»¥¹¿ô¤òÁý¤ä¤¹Êý¤¬¤è¤¤¤Î¤«¤ò ¤Ï¤Ã¤¤ê¤µ¤»¤Æ¤ª¤«¤Ê¤±¤ì¤Ð¤¤¤±¤Þ¤»¤ó. ¸å¼Ô¤Î¾ì¹ç (Îã : ¥Ë¥å¡¼¥¹¥µ¡¼¥Ð) ¤Ç¤Ï, Â礤Ê®¤¤¥É¥é¥¤¥Ö¤ò 1 ¤Ä¹ØÆþ¤¹¤ë¤³¤È¤ÏºÇŬ²ò¤È¤Ï¤Ê¤é¤Ê¤¤¤Ç¤·¤ç¤¦. ÃÙ¤¤¥É¥é¥¤¥Ö¤òÊ£¿ô¸Ä»È¤Ã¤Æ¥¹¥È¥é¥¤¥Ô¥ó¥°¤µ¤ì¤¿ ¥Ç¥£¥¹¥¯¥¢¥ì¥¤¤ò ºî¤ë ccd (Ï¢·ë¥Ç¥£¥¹¥¯) ¥É¥é¥¤¥Ð¤òÍѤ¤¤ë¤³¤È¤Ë¤è¤Ã¤Æ, Á´ÂΤËɬÍפÊÈñÍѤÎÅÀ¤ÇƱÍͤ«¤Þ¤¿¤Ï¤è¤ê Îɤ¤·ë²Ì¤òÆÀ¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹.
¥É¥é¥¤¥Ö¤Î¤Þ¤ï¤ê¤ËŬÀڤʶõµ¤¤Î ή¤ì¤òºî¤ë¤è¤¦¤Ë¤¹¤ëɬÍפ¬ ¤¢¤ê¤Þ¤¹. ¹â²óž®Å٤Υɥ饤¥Ö¤ò»È¤ª¤¦¤È¤·¤Æ¤¤¤ë¤È¤¤Ë¤ÏÆÃ¤Ë Ãí°Õ¤·¤Æ¤¯¤À¤µ¤¤. °ìÈÌŪ¤Ë, ¥É¥é¥¤¥Ö¤Î¾å²¼¤Ë¤Ï¾¯¤Ê¤¯¤È¤â 1/2 ¥¤¥ó¥Á (1.25cm) ¤Î ¤¹¤´Ö¤¬É¬ÍפǤ¹. PC ¤Î¥±¡¼¥¹Æâ¤Î¶õµ¤¤¬¤É¤ó¤Ê¤Õ¤¦¤Ëή¤ì¤Æ¤¤¤ë¤« Íý²ò¤·¤Æ¤ª¤¤¤Æ¤¯¤À¤µ¤¤. ¿¤¯¤Î¥±¡¼¥¹¤Ë¤ÏÇØÌ̤«¤é¶õµ¤¤òµÛ¤¤¹þ¤àÅŸ»¤¬ÉÕ¤¤¤Æ¤¤¤Þ¤¹. ¤É¤³¤«¤é¶õµ¤¤¬Æþ¤Ã¤Æ¤¯¤ë¤«¤ò³Î¤«¤á¤Æ, ¤Þ¤ï¤ê¤ËºÇÂçÎ̤ΠÎ䤿¤¤¶õµ¤¤¬Î®¤ì¤ë¤è¤¦¤Ë¥É¥é¥¤¥Ö¤òÀßÃÖ¤·¤Æ¤¯¤À¤µ¤¤. ¸ú²ÌŪ¤ËÎäµÑ¤¹¤ë¤¿¤á¤Ë¤Ï, ÉÔÍפʷê¤ò¤¤¤¯¤Ä¤«ºÉ¤¤¤À¤ê ¿·¤·¤¤¥Õ¥¡¥ó¤òÄɲ乤ëɬÍפ¬¤¢¤ë¤«¤âÃΤì¤Þ¤»¤ó.
¤â¤¦¤Ò¤È¤Ä¹Íθ¤¹¤ë¤Ù¤»öÊÁ¤ÏÁû²»¤Ç¤¹. 7,200RPM ¤ä¤½¤ì¤è¤ê®¤¤²óž®Å٤Υɥ饤¥Ö¤Î¿¤¯¤Ï¹â¤¤¼þÇÈ¿ô¤Î ²»¤òȯÀ¸¤·, ¤³¤Î²»¤Ï¿¤¯¤Î¿Í¤ò¤È¤Æ¤âÉÔ²÷¤Ë¤·¤Þ¤¹. ¤½¤ì¤Ë²Ã¤¨¤Æ, ÎäµÑ¤Î¤¿¤á¤ËÄɲ䵤줿¥Õ¥¡¥ó¤Ë¤è¤Ã¤Æ¤â, 7,200RPM ¤ä¤½¤ì¤è¤ê®¤¤²óž®Å٤Υɥ饤¥Ö¤Ï¥ª¥Õ¥£¥¹¤ä²È¤Î´Ä¶¤Ë ¤½¤°¤ï¤Ê¤¤¤â¤Î¤Ë¤Ê¤ë¤«¤â¤·¤ì¤Þ¤»¤ó.
¸½ºßÈÎÇ䤵¤ì¤Æ¤¤¤ëÂçÉôʬ¤Î SCSI ¥É¥é¥¤¥Ö¤Ï 3.5 ¥¤¥ó¥Á¤Î Â礤µ¤Ç¤¹. ¤½¤ì¤é¤Ï¹â¤µ¤¬ 1.6 ¥¤¥ó¥Á (``¥Ï¡¼¥Õ¥Ï¥¤¥È'') ¤Î¤â¤Î¤È 1 ¥¤¥ó¥Á (``¥í¡¼¥×¥í¥Õ¥¡¥¤¥ë'') ¤Î¤â¤Î¤È¤Î 2 ¼ïÎà¤ËʬÎव¤ì¤Þ¤¹. ¥Ï¡¼¥Õ¥Ï¥¤¥È¤Î¥É¥é¥¤¥Ö¤Ï CD-ROM ¥É¥é¥¤¥Ö¤ÈƱ¤¸¹â¤µ¤Ç¤¹. ¤·¤«¤·Á°Àá¤Ç½Ò¤Ù¤¿¤¹¤´Ö¤Ë¤Ä¤¤¤Æ¤Î ¥ë¡¼¥ë¤ò˺¤ì¤Ê¤¤¤Ç¤¯¤À¤µ¤¤. 3.5 ¥¤¥ó¥Á¥É¥é¥¤¥ÖÍѤΥ٥¤¤¬ 3 ÃÊÍѰդµ¤ì¤Æ¤¤¤ë¤È¤¤Ë, ¥Ï¡¼¥Õ¥Ï¥¤¥È¤Î¥É¥é¥¤¥Ö 3 ¸Ä¤ò (¾Ç¤¬¤¹¤³¤È¤Ê¤¯) ¤½¤³¤ËÀßÃÖ¤¹¤ë¤³¤È¤Ï¤Ç¤¤Ê¤¤¤Ç¤·¤ç¤¦.
¸½ºßÇä¤é¤ì¤Æ¤¤¤ë SCSI ¥Ï¡¼¥É¥É¥é¥¤¥Ö¤Î¿¤¯¤Ï Ultra ¤Þ¤¿¤Ï Ultra-wide SCSI ¤Ç¤¹. Ultra SCSI ¤ÎºÇÂç¥Ð¥ó¥ÉÉý¤Ï 20MB/s, Ultra-wide SCSI ¤Î¾ì¹ç¤Ï 40MB/s ¤Ç¤¹. Ultra ¤È Ultra-wide ¤Î´Ö¤Ë¥±¡¼¥Ö¥ëºÇÂçŤÎÁê°ã¤Ï¤¢¤ê¤Þ¤»¤ó¤¬, Ʊ°ì¥Ð¥¹¤ËÀܳ¤µ¤ì¤ë¥Ç¥Ð¥¤¥¹¤¬Áý¤¨¤ì¤ÐÁý¤¨¤ë¤Û¤É Áᤤ»þ´ü¤Ë¥Ð¥¹¤ÎÀ°Íý¤Ë´Ø¤¹¤ëÌäÂê¤ò Êú¤¨¤ë¤³¤È¤Ë¤Ê¤ë¤Ç¤·¤ç¤¦. ¤¦¤Þ¤¯À߷פµ¤ì¤¿¥Ç¥£¥¹¥¯¶è²è¤ò»ý¤Ã¤Æ¤¤¤ë¤Î¤Ç¤Ê¤±¤ì¤Ð, 5 ¸Ä¤« 6 ¸Ä°Ê¾å¤Î Ultra SCSI ¥É¥é¥¤¥Ö¤ò 1 ËܤΥХ¹¤Ë Àܳ¤¹¤ë¤³¤È¤ÏÍÆ°×¤Ê¤³¤È¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó.
°ìÊý, ¿¿ô¤Î¥É¥é¥¤¥Ö¤òÀܳ¤¹¤ëɬÍפ¬¤¢¤ë¤È¤¤Ë Fast-wide SCSI ¤òÍøÍѤ¹¤ë¤³¤È¤Ï°¤¯¤Ê¤¤¥¢¥¤¥Ç¥¢¤Ç¤·¤ç¤¦. ¤³¤ì¤Ï Ultra (narrow) SCSI ¤ÈƱ¤¸ºÇÂç¥Ð¥ó¥ÉÉý¤Ç¤¢¤ë¤ÈƱ»þ¤Ë ``Àµ¤·¤¯'' Àܳ¤¹¤ë¤³¤È¤¬Åŵ¤Åª¤Ë¤È¤Æ¤âÍÆ°×¤Ç¤¹. ¥¢¥É¥Ð¥¤¥¹¤È¤·¤Æ¤Ï¤³¤Î¤è¤¦¤Ë¤Ê¤ë¤Ç¤·¤ç¤¦¤« : ¥Ç¥£¥¹¥¯¤ò¿¿ôÀܳ¤·¤¿¤¤¤È¤¤Ë¤Ï wide SCSI ¤Î¥É¥é¥¤¥Ö¤ò Áª¤ó¤Ç²¼¤µ¤¤. Ä̾ï wide SCSI ¤ÎÊý¤¬¾¯¤·¹â²Á¤Ç¤¹¤¬, ¾Í褤äÈÌò¤ËΩ¤Á¤Þ¤¹. (¤Ê¤ª, ²Á³Êº¹¤òÊ䤦;͵¤¬¤Ê¤¤¤È¤¤Ë¤Ï¥Ç¥£¥¹¥¯¥¢¥ì¥¤¤ò ºî¤ë¤Ù¤¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó.)
wide SCSI ¥É¥é¥¤¥Ö¤Ë¤Ï 68 ¥Ô¥ó¤Î¤â¤Î¤È 80¥Ô¥ó SCA (ñ¥³¥Í¥¯¥¿·¿) ¤Î¤â¤Î¤È¤Î 2 ¼ïÎब¤¢¤ê¤Þ¤¹. SCA ¥É¥é¥¤¥Ö¤Ë¤Ï 4 ¥Ô¥ó¤ÎÅŸ»¥³¥Í¥¯¥¿¤¬¤Ê¤¯, SCSI ID ¤â 80 ¥Ô¥ó¥³¥Í¥¯¥¿¤òÄ̤¸¤ÆÀßÄꤵ¤ì¤Þ¤¹. ¿¿ÌÌÌܤËÂ絬ÌϤʵ²±¥·¥¹¥Æ¥à¤òºîÀ®¤¹¤ë¤è¤¦¤Ê¾ì¹ç¤Ë¤Ï, SCA ¥É¥é¥¤¥Ö¤È SCA ä¡ÂÎ (2 ¼ïÎà¤ÎÅ۵¤¬¶¡µë¤Ç¤¤ëÅŸ»¤È¾¯¤Ê¤¯¤È¤â 1 ¸Ä¤Î¥Õ¥¡¥ó¤¬ÉÕ¤¤¤¿¤â¤Î) ¤ò»È¤Ã¤Æ¤¯¤À¤µ¤¤. ¤½¤ÎÊý¤¬ 68 ¥Ô¥ó¤ÎƱÍͤΥɥ饤¥Ö¤è¤ê¤âÅŵ¤Åª¤ËÍ¥¤ì¤Æ¤¤¤Þ¤¹. ¤Ê¤¼¤Ê¤é, 68 ¥Ô¥ó¤Î¥É¥é¥¤¥Ö¤Çºî¤Ã¤¿¥Ç¥£¥¹¥¯¥¢¥ì¥¤¤Ë ¸«¤é¤ì¤ë¤è¤¦¤Ê SCSI ¥Ð¥¹¤Î ``¥¹¥¿¥Ö'' ¤¬¥Ç¥£¥¹¥¯¥¥ã¥Ë¥¹¥¿¤ÎÆâÉô¤Ë ¸ºß¤·¤Ê¤¤¤«¤é¤Ç¤¹. ¤½¤ì¤é¤Ï¤è¤ê´Êñ¤ËÀßÃÖ¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹ (¥¥ã¥Ë¥¹¥¿¤ÎÃæ¤Ë¥É¥é¥¤¥Ö¤ò¤Í¤¸¤Ç¸ÇÄꤹ¤ì¤Ð¤è¤¤¤À¤±¤Ç, (SCSI ID ¤ä¥Ç¥£¥¹¥¯¥¢¥¯¥»¥¹ LED ÍѤÎÀþ¤Î¤è¤¦¤Ê) ºÙ¤«¤¤¥±¡¼¥Ö¥ë¤òÁ´Éô»ý¤Á¾å¤²¤ë¤¿¤á¤Ë¶¹¤¤¤È¤³¤í¤Ø»Ø¤òÆþ¤ì¤Æ °®¤é¤Ê¤¯¤Æ¤â¤è¤¤¤Î¤Ç¤¹).
¸¶ºî: Jonathan M. Bresler <jmb@FreeBSD.ORG>. 2 July 1996.
Ìõ: ÆâÀî ´î¾Ï <yoshiaki@kt.rim.or.jp>. 13 October 1996.
mt(1) ¤Ï¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ø¤Î°ìÈÌŪ¤Ê¥¢¥¯¥»¥¹ÊýË¡¤òÄó ¶¡¤·¤Þ¤¹. rewind, erase, status¤Ê¤É ¤Î¶¦ÄÌ¥³¥Þ¥ó¥É¤¬¤¢¤ê¤Þ¤¹. ¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸¤Î mt(1) ¤ò¸« ¤Æ¤¯¤À¤µ¤¤. ¤è¤ê¾Ü¤·¤¤²òÀ⤬¤¢¤ê¤Þ¤¹.
¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ë¤Ï¤¤¤¯¤Ä¤«¤Î°Û¤Ê¤Ã¤¿¥¤¥ó¥¿¥Õ¥§¡¼¥¹¤¬¤¢¤ê ¤Þ¤¹. SCSI, IDE, ¥Õ¥í¥Ã¥Ô¡¼, ¥Ñ¥é¥ì¥ë¥Ý¡¼¥È¤Î¥¤¥ó¥¿¥Õ¥§¡¼¥¹ ¤Ç¤¹. Èó¾ï¤Ë¿¤¯¤Î¼ïÎà¤Î¥Æ¡¼¥×¥É¥é¥¤¥Ö¤¬¤³¤ì¤é¤Î¥¤¥ó¥¿¥Õ¥§¡¼ ¥¹¤Ç»È¤¨¤Þ¤¹. ¥³¥ó¥È¥í¡¼¥é¤Ë¤Ä¤¤¤Æ¤ÎµÄÏÀ¤Ï¥Ç¥£¥¹¥¯/¥Æ¡¼¥× ¤Î¥³¥ó¥È¥í¡¼¥é¤Ë¤¢¤ê¤Þ¤¹(ÌõÃí:¸½ºß̤´°À®¤Ç¤¹).
st(4) ¥É¥é¥¤¥Ð¤Ï 8mm (Exabyte), 4mm (DAT: Digital Audio Tape), QIC (1/4¥¤¥ó¥Á¥«¡¼¥È¥ê¥Ã¥¸), DLT (¥Ç¥¸¥¿¥ë¥ê¥Ë¥¢¥Æ¡¼¥×), QIC ¥ß¥Ë¥«¡¼¥È¥ê¥Ã¥¸, 9¥È¥é¥Ã¥¯ (Â礤ʥ꡼¥ë¤¬¥Ï¥ê¥¦¥Ã¥É¤Î ¥³¥ó¥Ô¥å¡¼¥¿¥ë¡¼¥à¤Ç²ó¤Ã¤Æ¤¤¤ë¤Î¤ò¸«¤¿¤³¤È¤¬¤¢¤ë¤Ç¤·¤ç¤¦) ¤ò¥µ¥Ý¡¼¥È¤·¤Þ¤¹. st(4) ¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸¤Ë¤è¤ê¾Ü¤·¤¤²òÀ⤬¤¢¤ê¤Þ¤¹.
°Ê²¼¤Î¥É¥é¥¤¥Ö¥ê¥¹¥È¤Ï¸½ºß FreeBSD¥³¥ß¥å¥Ë¥Æ¥£¤Î¥á¥ó¥Ð¤¬ »È¤Ã¤Æ¤¤¤ë¤â¤Î¤Ç¤¹. ¤³¤ì¤é¤À¤±¤¬ FreeBSD¤Çư¤¯¥É¥é¥¤¥Ö¤È¤¤¤¦ ¤ï¤±¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó. ¤³¤ì¤é¤Ïñ¤Ë¤¿¤Þ¤¿¤Þ»ä¤¿¤Á¤Î¤¦¤Á¤Î狼¤¬»È¤Ã ¤Æ¤¤¤ë¤È¤¤¤¦¤À¤±¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï ARCHIVE ANCDA 2750 28077 -003 type 1 removable SCSI 2 ¤Ç¤¹.
¤³¤ì¤Ï QIC ¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
QIC-1350¥Æ¡¼¥×¤òÍøÍѤ·¤¿¾ì¹ç¤Îɸ½à¤ÎÍÆÎÌ¤Ï 1.35GB¤Ç¤¹. ¤³¤Î¥É¥é¥¤¥Ö¤Ï QIC-150 (DC6150), QIC-250 (DC6250), QIC-525 (DC6525) ¤Î ¥Æ¡¼¥×¤òÌäÂê¤Ê¤¯ÆÉ¤ß½ñ¤¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹.
dump(8) ¤ò»È¤Ã¤¿»þ¤Î¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 350kB/s¤Ç¤¹. Amanda ¤Ë¤ª¤±¤ëžÁ÷¥ì¡¼¥È¤Ï 530kB/s¤ÈÊó¹ð¤µ¤ì¤Æ¤¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï´û¤ËÀ¸»ºÃæ»ß¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
¤³¤Î¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Î SCSI¥Ð¥¹¥³¥ó¥È¥í¡¼¥é¤Ï¾¤Î¤Û¤È¤ó¤É¤Î SCSI¥É¥é¥¤¥Ö¤È¥Ô¥óÇÛÃÖ¤¬µÕ¤Ç¤¹. Anaconda ¥Æ¡¼¥×¥É¥é¥¤¥Ö¤ÎÁ°¸å¤ÇSCSI¥±¡¼ ¥Ö¥ë¤ò1/2¤Ò¤Í¤ë¤³¤È¤¬¤Ç¤¤ë¤¯¤é¤¤ SCSI ¥±¡¼¥Ö¥ë¤¬Ä¹¤¤¤³¤È¤ò³Îǧ¤·¤Æ¤ª¤¯ ¤«, ¾¤Î SCSI¥Ç¥Ð¥¤¥¹¤Î¥Ô¥óÇÛÃÖ¤òÆþ¤ì´¹¤¨¤Æ¤ª¤¯É¬Í× ¤¬¤¢¤ê¤Þ¤¹.
¤½¤·¤Æ, ¤³¤Î¥É¥é¥¤¥Ö¤Ç¤Ï¥«¡¼¥Í¥ë¥³¡¼¥É¤ÎÊѹ¹¤¬ 2²Õ½êɬÍפǤ¹. ¤½ ¤Î¤Þ¤Þ¤Ç¤Ï¤¦¤Þ¤¯Æ°¤«¤Ê¤¤¤Ç¤·¤ç¤¦.
SCSI-2¥³¥ó¥È¥í¡¼¥é¤ò»ý¤Ã¤Æ¤¤¤ë¤Ê¤é, ¥¸¥ã¥ó¥Ñ¤Î 6ÈÖ¤ò¥·¥ç¡¼¥È ¤·¤Æ¤¯¤À¤µ¤¤. ¤½¤¦¤·¤Ê¤¤¤È¤³¤Î¥É¥é¥¤¥Ö¤Ï SCSI-1¤È¤·¤ÆÆ¯¤¤Þ¤¹. SCSI-1¤Î ¥Ç¥Ð¥¤¥¹¤È¤·¤ÆÆ°ºî¤¹¤ë»þ, ¤³¤Î¥É¥é¥¤¥Ö¤Ï¥Æ¡¼¥×¤Îfsf (ÁáÁ÷¤ê), rewind (´¬ Ìᤷ),rewoffl (´¬Ìᤷ¤Æ¥ª¥Õ¥é¥¤¥ó¤Ë¤¹¤ë) Åù¤ò´Þ¤àÁàºî¤ò¹Ô¤Ã¤Æ¤¤¤ë´Ö, SCSI¥Ð¥¹¤ò``¥í¥Ã¥¯''¤·¤Þ¤¹.
NCR SCSI¥³¥ó¥È¥í¡¼¥é¤ò»È¤¦¾ì¹ç, /usr/src/sys/pci/ncr.c (°Ê ²¼¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤)¤Ë¥Ñ¥Ã¥Á¤ò¹Ô¤Ã¤Æ, ¥«¡¼¥Í¥ë¤òºî¤êľ¤·, ¿·¤·¤¤¥«¡¼¥Í ¥ë¤ò¥¤¥ó¥¹¥È¡¼¥ë¤·¤Æ¤¯¤À¤µ¤¤.
*** 4831,4835 **** }; ! if (np->latetime>4) { /* ** Although we tried to wake it up, --- 4831,4836 ---- }; ! if (np->latetime>1200) { /* ** Although we tried to wake it up,
Êó¹ð¼Ô: Jonathan M. Bresler <jmb@FreeBSD.ORG>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï ARCHIVE Python 28454-XXX4ASB type 1 removable SCSI 2 density code 0x8c, 512-byte blocks ¤Ç¤¹.
¤³¤ì¤Ï DDS-1 ¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
90m ¥Æ¡¼¥×¤ò»È¤Ã¤¿¾ì¹ç¤Îɸ½àÍÆÎÌ¤Ï 2.5GB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷®ÅÙ¤ÏÉÔÌÀ¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï Sun ¥Þ¥¤¥¯¥í¥·¥¹¥Æ¥à¤¬ºÆ¥Ñ¥Ã¥±¡¼¥¸¤·¤Æ model 411¤È¤·¤Æ½Ð¤·¤Æ¤¤¤Þ¤¹.
Êó¹ð¼Ô: Bob Bishop <rb@gid.co.uk>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¼±ÊÌ»Ò¤Ï ARCHIVE VIPER 60 21116 -007 type 1 removable SCSI 1 ¤Ç¤¹.
¤³¤ì¤Ï QIC¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½à¤ÎÍÆÎÌ¤Ï 60MB ¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤ÏÉÔÌÀ¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤ÏÀ¸»ºÃæ»ß¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
Êó¹ð¼Ô: Philippe Regnauld <regnauld@hsc.fr>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï ARCHIVE VIPER 150 21531 -004 Archive Viper 150 is a known rogue type 1 removable SCSI 1¤Ç¤¹. ¤³¤Î¥É¥é¥¤¥Ö¤Î¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Ë¤Ï¿¤¯¤Î¥ê¥Ó¥¸¥ç ¥ó¤¬¤¢¤ê¤Þ¤¹. ¤¢¤Ê¤¿¤Î¥É¥é¥¤¥Ö¤Ç¤Ï¤³¤È¤Ê¤Ã¤¿¿ô»ú¤¬É½¼¨¤µ¤ì¤ë¤«¤â¤·¤ì¤Þ ¤»¤ó(Î㤨¤Ð 21247 -005).
¤³¤ì¤Ï QIC¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎÌ¤Ï 150/250MB¤Ç¤¹. 150MB (DC6150) ¥Æ¡¼¥×¤È 250MB (DC6250)¥Æ¡¼¥×¤ÎµÏ¿¥Õ¥©¡¼¥Þ¥Ã¥È¤¬¤¢¤ê¤Þ¤¹. 250MB¥Æ¡¼¥×¤Ï ¤ª¤è¤½67% 150MB¥Æ¡¼¥×¤è¤êŤ¤¤Ç¤¹. ¤³¤Î¥É¥é¥¤¥Ö¤Ï 120MB¤Î¥Æ¡¼¥×¤òÌäÂê ¤Ê¤¯ÆÉ¤à¤³¤È¤¬¤Ç¤¤Þ¤¹. 120MB¥Æ¡¼¥×¤Ë½ñ¤¹þ¤à¤³¤È¤Ï¤Ç¤¤Þ¤»¤ó.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï100kB/s¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï DC6150 (150MB) ¤È DC6250 (250MB) ¥Æ¡¼¥×¤ÎÆÉ¤ß ½ñ¤¤¬¤Ç¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Î´ñ̯¤ÊÊÊ¤Ï SCSI¥Æ¡¼¥×¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð¤Ï¤¢¤é ¤«¤¸¤á (st(4)) ¤Ë¤¢¤é¤«¤¸¤áÁȤ߹þ¤Þ¤ì¤Æ¤¤¤Þ¤¹.
FreeBSD 2.2-current¤Ç¤Ï, ¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤ÎÀßÄê¤òÀßÄꤹ¤ë¤¿¤ámt blocksize 512¤È¤·¤Æ¤¯¤À¤µ¤¤. (¥Õ¥¡¡¼¥à¥¦¥§¥¢¥ê¥Ó¥¸¥ç¥ó¤¬ 21247 -005 ¤Ç¤¢¤ë¾ì¹ç¤ÎÌäÂê¤Ç¤¹. ¾¤Î¥ê¥Ó¥¸¥ç¥ó¤Î¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Ç¤Ï°Û ¤Ê¤ë¾ì¹ç¤¬¤¢¤ê¤Þ¤¹.) ¤³¤ì°ÊÁ°¤Î FreeBSD¥Ð¡¼¥¸¥ç¥ó¤Ë¤Ï¤³¤ÎÌäÂê¤Ï¤¢¤ê¤Þ¤»¤ó.
¤³¤Î¥É¥é¥¤¥Ö¤ÏÀ¸»ºÃæ»ß¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
Êó¹ð¼Ô: Pedro A M Vazquez <vazquez@IQM.Unicamp.BR>
Mike Smith <msmith@atrad.adelaide.edu.au>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï ARCHIVE VIPER 2525 25462 -011 type 1 removable SCSI 1¤Ç¤¹.
¤³¤ì¤Ï QIC¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎÌ¤Ï 525MB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 90inch/sec¤Î¾ì¹ç¤Ç 180kB/s¤Ç¤¹.
QIC-525, QIC-150, QIC-120, QIC-24¤Î¥Æ¡¼¥×¤òÆÉ¤à¤³¤È¤¬¤Ç¤¤Þ ¤¹. QIC-525, QIC-150, QIC-120 ¤Ë½ñ¤¹þ¤à¤³¤È¤¬¤Ç¤¤Þ¤¹.
¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Î¥ê¥Ó¥¸¥ç¥ó¤¬ 25462 -011 °ÊÁ°¤Îʪ¤Ï¥Ð¥°¤¬ ¿¤¯, Àµ¤·¤¯µ¡Ç½¤·¤Þ¤»¤ó.
¤³¤Î¥É¥é¥¤¥Ö¤ÏÀ¸»ºÃæ»ß¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï Conner tape ¤Ç¤¹.
¤³¤ì¤Ï¥Õ¥í¥Ã¥Ô¡¼¥³¥ó¥È¥í¡¼¥é¤ò »È¤¦¥ß¥Ë¥«¡¼¥È¥ê¥Ã¥¸¥Æ¡¼¥×¥É ¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎ̤ÏÉÔÌÀ¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤ÏÉÔÌÀ¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï QIC-80¥Æ¡¼¥×¥É¥é¥¤¥Ö¤ò»È¤¤¤Þ¤¹.
Êó¹ð¼Ô: Mark Hannon <mark@seeware.DIALix.oz.au>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï CONNER CTMS 3200 7.00 type 1 removable SCSI 2 ¤Ç¤¹.
¤³¤ì¤Ï¥ß¥Ë¥«¡¼¥È¥ê¥Ã¥¸¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎ̤ÏÉÔÌÀ¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤ÏÉÔÌÀ¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï QIC-3080¥Æ¡¼¥×¥«¡¼¥È¥ê¥Ã¥¸¤ò»È¤¤¤Þ¤¹.
Êó¹ð¼Ô: Thomas S. Traylor <tst@titan.cs.mci.com>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï DEC TZ87 (C) DEC 9206 type 1 removable SCSI 2 density code 0x19 ¤Ç¤¹.
¤³¤ì¤Ï DLT¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎÌ¤Ï 10GB¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï¥Ï¡¼¥É¥¦¥§¥¢¥Ç¡¼¥¿°µ½Ì¤Îµ¡Ç½¤¬¤¢¤ê¤Þ¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 1.2MB/s¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï Quantum DLT2000¤ÈƱ°ì¤Îʪ¤Ç¤¹. ¤³¤Î¥É¥é¥¤¥Ö ¤Î¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Ï Exabyte¤Î 8mm¥É¥é¥¤¥ÖÅù¤Î¤è¤¯ÃΤé¤ì¤¿¤¤¤¯¤Ä¤«¤Î¥É¥é ¥¤¥Ö¤Î¥¨¥ß¥å¥ì¡¼¥È¤ò¤ª¤³¤Ê¤¦¤è¤¦ÀßÄ꤬¤Ç¤¤Þ¤¹.
Êó¹ð¼Ô: Wilko Bulte <wilko@yedi.iaf.nl>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¼±ÊÌ»Ò¤Ï EXABYTE EXB-2501¤Ç¤¹.
¤³¤ì¤Ï¥ß¥Ë¥«¡¼¥È¥ê¥Ã¥¸¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
MC3000XL¥ß¥Ë¥«¡¼¥È¥ê¥Ã¥¸¤ò»È¤Ã¤¿»þ¤Îɸ½àÍÆÎÌ¤Ï 1GB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤ÏÉÔÌÀ¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï DC2300 (550MB), DC2750 (750MB), MC3000 (750MB), MC3000XL (1GB) ¥ß¥Ë¥«¡¼¥È¥ê¥Ã¥¸¤ÎÆÉ¤ß½ñ¤¤¬¤Ç¤¤Þ¤¹.
Ãí°Õ: ¤³¤Î¥É¥é¥¤¥Ö¤Ï SCSI-2¤Î»ÅÍͤËŬ¹ç¤·¤Æ¤¤¤Þ¤»¤ó. ¤³¤Î¥É¥é¥¤¥Ö¤Ï, ¥Õ¥©¡¼¥Þ¥Ã¥ÈºÑ¤ß¤Î¥Æ¡¼¥×°Ê³°¤òÆþ¤ì¤¿¾ì¹ç, SCSI MODE_SELCT¥³¥Þ¥ó¥É¤Ç´°Á´¤Ë¥í¥Ã¥¯¥¢¥Ã¥×¤·¤Æ¤·¤Þ¤¤¤Þ¤¹. ¤³¤Î¥É¥é¥¤¥Ö¤ò»È ¤¦Á°¤Ë, ¥Æ¡¼¥×¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤ò¼¡¤Î¤è¤¦¤ËÀßÄꤷ¤Þ¤¹.
# mt -f /dev/st0ctl.0 blocksize 1024
¥ß¥Ë¥«¡¼¥È¥ê¥Ã¥¸¤ÏºÇ½é¤Ë»È¤¦Á°¤Ë ¥Õ¥©¡¼¥Þ¥Ã¥È¤·¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó. FreeBSD 2.1.0-RELEASE ¤ª¤è¤Ó¤½¤ì°ÊÁ°¤Î¾ì¹ç¤Ï
# /sbin/scsi -f /dev/rst0.ctl -s 600 -c "4 0 0 0 0 0"
(¤¢¤ë¤¤¤Ï, FreeBSD 2.1.5/2.2¤«¤é scsiformat¥·¥§¥ë¥¹¥¯¥ê¥×¥È¤ò ¥³¥Ô¡¼¤·¤Æ»ý¤Ã¤Æ¤¤¿¾ì¹ç¤È) FreeBSD 2.1.5¤ª¤è¤Ó¤½¤ì°Ê¹ß¤Î¾ì¹ç¤Ï
# /sbin/scsiformat -q -w /dev/rst0.ctl¤È¤·¤Þ¤¹.
º£¤Î¤È¤³¤í, FreeBSD¤Ç¤Ï¤³¤Î¥É¥é¥¤¥Ö¤Ï¤¢¤Þ¤ê¤ª¤¹¤¹¤á¤Ç¤¤Þ¤»¤ó.
Êó¹ð¼Ô: Bob Beaulieu <ez@eztravel.com>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï EXABYTE EXB-8200 252X type 1 removable SCSI 1¤Ç¤¹.
¤³¤ì¤Ï8mm¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎÌ¤Ï 2.3GB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 270kB/s¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï¥Ö¡¼¥È»þ¤Î SCSI¥Ð¥¹¤Ø¤Î±þÅú¤Ï¤ï¤ê¤¢¤¤ÃÙ¤¤¤Ç¤¹. ¥«¥¹¥¿¥à¥«¡¼¥Í¥ë¤¬É¬Íפ«¤â¤·¤ì¤Þ¤»¤ó (SCSI_DELAY¤ò 10ÉäËÀßÄꤷ¤Þ¤·¤ç¤¦). ÌõÃí: GENERIC¥«¡¼¥Í¥ë¤ÎÀßÄê¤Ç¤Ï 15ÉäˤʤäƤ¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ë¤ÏÈó¾ï¤Ë¿¤¯¤Î¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Î ¹½À®¤¬¤¢¤ê¤Þ¤¹. ¤¢¤ë¥É¥é¥¤¥Ö¤Ç¤ÏÆÃÄê¤Î¥Ù¥ó¥À¤Î¥Ï¡¼¥É¥¦¥§¥¢¤Ë ¥«¥¹¥¿¥Þ¥¤¥º¤·¤Æ¤¢¤ê¤Þ¤¹. ¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Ï EPROM¤òÃÖ¤´¹¤¨¤ë¤³¤È¤ÇÊѹ¹¤Ç¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤ÏÀ¸»ºÃæ»ß¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹.
Êó¹ð¼Ô: Mike Smith <msmith@atrad.adelaide.edu.au>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï EXABYTE EXB-8500-85Qanx0 0415 type 1 removable SCSI 2 ¤Ç¤¹.
¤³¤ì¤Ï 8mm¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎÌ¤Ï 5GB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 300kB/s¤Ç¤¹.
Êó¹ð¼Ô: Greg Lehey <grog@lemis.de>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¼±ÊÌ»Ò¤Ï EXABYTE EXB-85058SQANXR1 05B0 type 1 removable SCSI 2¤Ç¤¹.
¤³¤ì¤Ï °µ½Ìµ¡Ç½¤ò»ý¤Ã¤¿ 8mm¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç, EXB-5200 ¤È EXB-8500¤ËÂФ¹¤ë¾å°Ì¸ß´¹ÉʤǤ¹.
ɸ½àÍÆÎÌ¤Ï 5GB¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï ¥Ï¡¼¥É¥¦¥§¥¢¥Ç¡¼¥¿°µ½Ìµ¡Ç½¤¬¤¢¤ê¤Þ¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 300kB/s¤Ç¤¹.
Êó¹ð¼Ô: Glen Foster <gfoster@gfoster.com>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï HP C1533A 9503 type 1 removable SCSI 2¤Ç¤¹.
¤³¤ì¤ÏDDS-2¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹. DDS-2 ¤È¤Ï¥Ç¡¼¥¿ÍÆÎ̤òÁý¤ä ¤¹¤¿¤á¤Ë¥Ï¡¼¥É¥¦¥§¥¢°µ½Ì¤È ¶¹¤¤¥È¥é¥Ã¥¯¤òºÎÍѤ·¤¿¤â¤Î¤Ç¤¹.
120m¥Æ¡¼¥×¤ò»È¤Ã¤¿¾ì¹ç¤Îɸ½àÍÆÎ̤Ï4GB¤Ç¤¹. ¤³¤Î¥É¥é¥¤¥Ö¤Ï ¥Ï¡¼¥É¥¦¥§¥¢¥Ç¡¼¥¿°µ½Ìµ¡Ç½¤¬¤¢¤ê¤Þ¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï510kB/s¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï¥Ò¥å¡¼¥ì¥Ã¥È¥Ñ¥Ã¥«¡¼¥É¼Ò¤Î 6000eU ¤ª¤è¤Ó 6000i ¥Æ¡¼ ¥×¥É¥é¥¤¥Ö, C1533A DDS-2 DAT ¥É¥é¥¤¥Ö¤Ë»È¤ï¤ì¤Æ¤¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï 8ÀÜÅÀ¤Î¥Ç¥£¥Ã¥×¥¹¥¤¥Ã¥Á¤¬¤¢¤ê¤Þ¤¹. FreeBSD¤Ç ¤ÎŬÀÚ¤ÊÀßÄê¤Ï 1 ON; 2 ON; 3 OFF; 4 ON; 5 ON; 6 ON; 7 ON; 8 ON ¤Ç¤¹.
¥¹¥¤¥Ã¥Á 1 | ¥¹¥¤¥Ã¥Á 2 | ·ë²Ì |
---|---|---|
On | On | ÅŸ»ÅêÆþ»þ¤Ë°µ½Ì ON, ¥Û¥¹¥È¤Ë¤è¤ë¥³¥ó¥È¥í¡¼¥ë²Äǽ |
On | Off | ÅŸ»ÅêÆþ»þ¤Ë°µ½Ì ON, ¥Û¥¹¥È¤Ë¤è¤ë¥³¥ó¥È¥í¡¼¥ëÉÔ²Ä |
Off | On | ÅŸ»ÅêÆþ»þ¤Ë°µ½Ì OFF, ¥Û¥¹¥È¤Ë¤è¤ë¥³¥ó¥È¥í¡¼¥ë²Äǽ |
Off | Off | ÅŸ»ÅêÆþ»þ¤Ë°µ½Ì OFF, ¥Û¥¹¥È¤Ë¤è¤ë¥³¥ó¥È¥í¡¼¥ëÉÔ²Ä |
¥¹¥¤¥Ã¥Á 3 ¤Ï MRS (Media Recognition System :¥á¥Ç¥£¥¢Ç§¼±¥·¥¹¥Æ ¥à) ¤ò¥³¥ó¥È¥í¡¼¥ë¤·¤Þ¤¹. MRS ¥Æ¡¼¥×¤ÏÆ©ÌÀ¤Ê¥Æ¡¼¥×¥ê¡¼¥ÀÉôʬ¤Ë¤·¤ÞÌÏ Íͤ¬¤¢¤ê¤Þ¤¹. ¤³¤ì¤Ï¥Æ¡¼¥×¤¬ DDS (Digital Data Storage) ¥°¥ì¡¼¥É¤Ç¤¢¤ë ¤³¤È¤ò¼¨¤·¤Þ¤¹. ¤·¤ÞÌÏÍͤΤʤ¤¥Æ¡¼¥×¤Ï¥é¥¤¥È¥×¥í¥Æ¥¯¥È¤µ¤ì¤¿¤â¤Î¤È¤·¤Æ °·¤¤¤Þ¤¹. ¥¹¥¤¥Ã¥Á3¤òOFF¤Ë¤¹¤ë¤È MRS¤¬Í¸ú¤Ë¤Ê¤ê¤Þ¤¹. ¥¹¥¤¥Ã¥Á3¤òON¤Ë ¤¹¤ë¤È MRS¤Ï̵¸ú¤Ë¤Ê¤ê¤Þ¤¹.
ÌõÃí: °Â²Á¤Ê²»³ÚÍѤÎDAT¥Æ¡¼¥×¤ò»È¤¦¤Ë¤Ï MRS¤òOFF¤Ë¤·¤Æ¤ª¤¤Þ¤¹
¤³¤Î¥É¥é¥¤¥Ö¤ÎÀßÄê¤Ë¤Ä¤¤¤Æ¤Î¤è¤ê¾Ü¤·¤¤¾ðÊó¤Ï HP SureStore Tape Products ¤ª¤è¤Ó Hewlett-Packard Disk and Tape Technical Information ¤ò¤´Í÷¤¯¤À¤µ¤¤.
Ãí°Õ: ¤³¤ì¤é¤Î¥É¥é¥¤¥Ö¤ÎÉʼÁ´ÉÍý¤ÏÈó¾ï¤ËÉý¤¬¤¢¤ê¤Þ ¤¹. ¤¢¤ë FreeBSD¥³¥¢¥Á¡¼¥à¤Î¥á¥ó¥Ð¤Ï ¤³¤Î¥É¥é¥¤¥Ö¤ò2¤ÄÊÖÉʤ·¤Þ¤·¤¿.
Êó¹ð¼Ô: Stefan Esser <se@FreeBSD.ORG>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï HP HP35470A T503 type 1 removable SCSI 2 Sequential-Access density code 0x13, variable blocks¤Ç¤¹.
¤³¤ì¤Ï DDS-1¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹. DDS-1 ¤ÏºÇ½é¤Î DAT ¥Æ¡¼¥×¥Õ¥©¡¼¥Þ¥Ã¥È¤Ç¤¹.
90m ¥Æ¡¼¥×¤ò»È¤Ã¤¿¾ì¹ç¤Îɸ½àÍÆÎÌ¤Ï 2GB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 183kB/s¤Ç¤¹.
¥Ò¥å¡¼¥ì¥Ã¥È¥Ñ¥Ã¥«¡¼¥É¼Ò¤Î SureStore 2000i ¥Æ¡¼¥×¥É¥é¥¤¥Ö, C35470A DDS ¥Õ¥©¡¼¥Þ¥Ã¥È DAT¥É¥é¥¤¥Ö, C1534A DDS ¥Õ¥©¡¼¥Þ¥Ã¥È DAT¥É¥é¥¤¥Ö, HP C1536A DDS ¥Õ¥©¡¼¥Þ¥Ã¥È DAT¥É¥é¥¤¥Ö¤È Ʊ¤¸µ¡¹½¤ò»ÈÍѤ·¤Æ¤¤¤Þ¤¹.
HP C1534A DDS¥Õ¥©¡¼¥Þ¥Ã¥È DAT¥É¥é¥¤¥Ö¤Ï¥°¥ê¡¼¥ó¤È²«¿§(¥¢¥ó¥Ð¡¼) ¤Î2¤Ä¤Îɽ¼¨¥é¥ó¥×¤¬¤¢¤ê¤Þ¤¹. ¥°¥ê¡¼¥ó¤Î¥é¥ó¥×¤Ïưºî¾õ ÂÖ¤ò¼¨¤·, ¥í¡¼¥Ç¥£¥ó¥°Ãæ¤Ï¤æ¤Ã¤¯¤êÅÀÌÇ, ¥í¡¼¥Ç¥£¥ó¥°¤¬½ªÎ»¤¹¤ë¤ÈÅÀÅô, read/writeưºîÃæ¤Ï®¤¯ÅÀÌǤ·¤Þ¤¹. ²«¿§¤Î¥é¥ó¥×¤Ï·Ù¹ðÅô¤Ç, ¥¯¥ê¡¼¥Ë¥ó¥° ¤¬É¬ÍפǤ¢¤ë¤«¤Þ¤¿¤Ï¥Æ¡¼¥×¤¬¼÷Ì¿¤Ë¶á¤¯¤Ê¤ë¤È¤æ¤Ã¤¯¤êÅÀÌÇ, Ã×̿Ū¤Ê¥¨¥é¡¼ ¤Î¾ì¹ç¤ÏÅÀÅô¤·¤Þ¤¹(¹©¾ì¤Ç¤Î½¤Íý¤¬É¬Íפ«¤â¤·¤ì¤Þ¤»¤ó).
Êó¹ð¼Ô:Gary Crutcher <gcrutchr@nightflight.com>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±Ê̻ҤÏ̤³Îǧ¤Ç¤¹.
¤³¤ì¤Ï¥Æ¡¼¥×¥Á¥§¥ó¥¸¥ãÉդΠDDS-2¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹. DDS-2 ¤È¤Ï¥Ç¡¼¥¿ÍÆÎ̤òÁý¤ä ¤¹¤¿¤á¤Ë¥Ï¡¼¥É¥¦¥§¥¢°µ½Ì¤È¶¹¤¤¥È¥é¥Ã¥¯¤ò ºÎÍѤ·¤¿¤â¤Î¤Ç¤¹.
120m¥Æ¡¼¥×¤ò»ÈÍѤ·¤¿¾ì¹ç¤Îɸ½àÍÆÎÌ¤Ï 24GB ¤Ç¤¹. ¤³¤Î¥É¥é¥¤¥Ö¤Ï¥Ï¡¼¥É¥¦¥§¥¢¥Ç¡¼¥¿°µ½Ìµ¡Ç½¤¬¤¢¤ê¤Þ¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï510kB/s (ɸ½à) ¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï¥Ò¥å¡¼¥ì¥Ã¥È¥Ñ¥Ã¥«¡¼¥É¼Ò¤Î SureStore 12000e ¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ë»È¤ï¤ì¤Æ¤¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï¥ê¥¢¥Ñ¥Í¥ë¤Ë2¤Ä¤ÎÁªÂò¥¹¥¤¥Ã¥Á¤¬¤¢¤ê¤Þ¤¹. ¥Õ¥¡¥ó¤Ë¶á¤¤¥¹¥¤¥Ã¥Á¤Ï SCSI ID¤Ç¤¹. ¤â¤¦¤Ò¤È¤Ä¤Ï 7¤ËÀßÄꤷ¤Æ¤ª¤¤Þ¤¹.
ÆâÉô¤Ë 4¸Ä¤Î¥¹¥¤¥Ã¥Á¤¬¤¢¤ê¤Þ¤¹. ¤³¤ì¤é¤Ï 1 ON; 2 ON; 3 ON; 4 OFF ¤ËÀßÄꤷ¤Æ¤ª¤¤Þ¤·¤ç¤¦.
¸½ºß¤Î¥«¡¼¥Í¥ë¥É¥é¥¤¥Ð¤Ï¥Ü¥ê¥å¡¼¥à¤Î½ª¤ê¤Ç ¼«Æ°Åª¤Ë¥Æ¡¼¥×¤ò ¸ò´¹¤·¤Þ¤»¤ó. ¤³¤³¤Ë¼¨¤¹ shell¥¹¥¯¥ê¥×¥È¤Ç¥Æ¡¼¥×¤ò¸ò´¹¤Ç¤¤Þ¤¹.
#!/bin/sh PATH="/sbin:/usr/sbin:/bin:/usr/bin"; export PATH usage() { echo "Usage: dds_changer [123456ne] raw-device-name echo "1..6 = Select cartridge" echo "next cartridge" echo "eject magazine" exit 2 } if [ $# -ne 2 ] ; then usage fi cdb3=0 cdb4=0 cdb5=0 case $1 in [123456]) cdb3=$1 cdb4=1 ;; n) ;; e) cdb5=0x80 ;; ?) usage ;; esac scsi -f $2 -s 100 -c "1b 0 0 $cdb3 $cdb4 $cdb5"
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï HP HP35450A -A C620 type 1 removable SCSI 2 Sequential-Access density code 0x13 ¤Ç¤¹.
¤³¤ì¤Ï DDS-1¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹. DDS-1 ¤ÏºÇ½é¤Î DAT ¥Æ¡¼¥×¥Õ¥©¡¼¥Þ¥Ã¥È¤Ç¤¹.
ɸ½àÍÆÎÌ¤Ï 1.2GB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 160kB/s¤Ç¤¹.
Êó¹ð¼Ô: mark thompson <mark.a.thompson@pobox.com>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï HP HP35470A 9 09 type 1 removable SCSI 2¤Ç¤¹.
¤³¤ì¤Ï DDS-1¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹. DDS-1¤ÏºÇ½é¤Î DAT ¥Æ¡¼¥×¥Õ¥©¡¼¥Þ¥Ã¥È¤Ç¤¹.
90m¥Æ¡¼¥×¤ò»ÈÍѤ·¤¿»þ¤Îɸ½àÍÆÎÌ¤Ï 2GB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 183kB/s¤Ç¤¹.
¤³¤ì¤Ï¥Ò¥å¡¼¥ì¥Ã¥È¥Ñ¥Ã¥«¡¼¥É¼Ò¤Î SureStore 2000i ¥Æ¡¼¥×¥É¥é¥¤¥Ö, C35470A DDS¥Õ¥©¡¼¥Þ¥Ã¥ÈDAT¥É¥é¥¤¥Ö, C1534A DDS¥Õ¥©¡¼¥Þ¥Ã¥ÈDAT¥É¥é¥¤¥Ö, HP C1536A DDS ¥Õ¥©¡¼¥Þ¥Ã¥ÈDAT¥É¥é¥¤¥Ö¤ÈƱ ¤¸µ¡¹½¤¬»È¤ï¤ì¤Æ¤¤¤Þ¤¹.
Ãí°Õ: ¤³¤ì¤é¤Î¥É¥é¥¤¥Ö¤ÎÉʼÁ´ÉÍý¤Ë¤ÏÈó¾ï¤ËÂç¤ ¤ÊÉý¤¬¤¢¤ê¤Þ¤¹. ¤¢¤ë FreeBSD¥³¥¢¥Á¡¼¥à¤Î¥á¥ó¥Ð¤Ï 5Âæ¤Î¥É¥é¥¤¥Ö¤òÊÖÉʤ· ¤Þ¤·¤¿. 9¥ö·î°Ê¾å¤â¤Ã¤¿¤â¤Î¤Ï¤¢¤ê¤Þ¤»¤ó.
Êó¹ð¼Ô: David Dawes <dawes@rf900.physics.usyd.edu.au> (9 09)
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï HP HP35480A 1009 type 1 removable SCSI 2 Sequential-Access density code 0x13 ¤Ç¤¹.
¤³¤ì¤Ï DDS-DC¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹. DDS-DC¤Ï¥Ï¡¼¥É¥¦¥§¥¢¥Ç¡¼¥¿ °µ½Ì¤Î¤Ä¤¤¤¿DDS-1¤Ç¤¹. DDS-1¤ÏºÇ½é¤ÎDAT¥Æ¡¼¥×¥Õ¥©¡¼¥Þ¥Ã¥È¤Ç¤¹.
90m¥Æ¡¼¥×¤ò»È¤Ã¤¿¾ì¹ç¤Îɸ½àÍÆÎÌ¤Ï 2GB¤Ç¤¹. 120m¥Æ¡¼¥×¤Ï»ÈÍÑ ¤Ç¤¤Þ¤»¤ó. ¤³¤Î¥É¥é¥¤¥Ö¤Ï¥Ï¡¼¥É¥¦¥§¥¢°µ½Ìµ¡Ç½¤¬¤¢¤ê¤Þ¤¹. ŬÀڤʥ¹¥¤¥Ã¥ÁÀßÄê¤Ë´Ø¤·¤Æ¤Ï, HP C1533A ¤ÎÀá¤ò»²¾È¤·¤Æ¤¯¤À¤µ¤¤.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 183kB/s¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï¥Ò¥å¡¼¥ì¥Ã¥È¥Ñ¥Ã¥«¡¼¥É¼Ò¤Î SureStore 5000eU , 5000i ¥Æ¡¼¥×¥É¥é ¥¤¥Ö, C35480A DDS ¥Õ¥©¡¼¥Þ¥Ã¥È DAT ¥É¥é¥¤¥Ö¤ÈƱ¤¸µ¡¹½¤ò»È¤Ã¤Æ¤¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ï»þ¡¹, ¥Æ¡¼¥×¤Î ejectÁàºî (mt offline) ¤ò¹Ô¤Ã¤Æ¤¤¤ë»þ¤Ë¥Ï¥ó¥°¥¢¥Ã¥×¤¹¤ë¤³¤È¤¬¤¢¤ê¤Þ¤¹. ¥Æ¡¼¥×¤òeject¤µ¤»¤¿¤ê, ¥É¥é¥¤¥Ö¤ò²óÉü¤µ¤»¤ë¤Ë¤Ï¥Õ¥í¥ó¥È¥Ñ¥Í¥ë¤Î¥Ü¥¿¥ó¤ò ²¡¤·¤Æ¤¯¤À¤µ¤¤.
Ãí°Õ: HP 35480-03110 ¤Ç¤ÏÆÃͤÎÌäÂ꤬¤¢¤ê¤Þ¤·¤¿. ¾¯¤Ê¤¯¤È¤â2²ó, FreeBSD 2.1.0 ¤Ç IBM Server 320¤Ë 2940W SCSI¥³¥ó¥È¥í¡¼¥é ¤ò¤Ä¤±¤Æ¤³¤Î¥É¥é¥¤¥Ö¤ò»È¤Ã¤Æ¤¤¤ë»þ¤Ë¤¹¤Ù¤Æ¤Î SCSI¥Ç¥£¥¹¥¯¤Î¥Ñ¡¼¥Æ¥£¥·¥ç ¥ó¤¬¼º¤ï¤ì¤¿¤³¤È¤¬¤¢¤ê¤Þ¤¹. ¤³¤ÎÌäÂê¤Ï²òÀϤâ²ò·è¤â¤Ç¤¤Æ¤¤¤Þ¤»¤ó.
¤³¤ì¤é¤Ë¤Ï¾¯¤Ê¤¯¤È¤â DDS-1¤Î¤â¤Î¤È DDS-2¤Î¤â¤Î¤Î2¤Ä¤Î¥â¥Ç¥ë¤¬ ¤¢¤ê¤Þ¤¹. DDS-1¤Î¤â¤Î¤Ï SDT-5000 3.02¤Ç¤¹. DDS-2¤Î¤â¤Î¤Ï SONY SDT-5000 327M ¤Ç¤¹. DDS-2¥Ð¡¼¥¸¥ç¥ó¤Ë¤Ï 1MB¤Î¥¥ã¥Ã¥·¥å¤¬¤¢¤ê¤Þ¤¹. ¤³¤Î ¥¥ã¥Ã¥·¥å¤Ë¤è¤ê¤¢¤é¤æ¤ë¾õ¶·¤Ç ¥Æ¡¼¥×¤Î¥Ç¡¼¥¿¤Îή¤ì¤òÅÓÀڤ줵¤»¤Þ¤»¤ó.
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï SONY SDT-5000 3.02 type 1 removable SCSI 2 Sequential-Access density code 0x13¤Ç¤¹.
120m¥Æ¡¼¥×¤ò»ÈÍѤ·¤¿¾ì¹ç¤Îɸ½àÍÆÎÌ¤Ï 4GB¤Ç¤¹. ¤³¤Î¥É¥é¥¤¥Ö ¤Ï¥Ï¡¼¥É¥¦¥§¥¢¥Ç¡¼¥¿°µ½Ìµ¡Ç½¤¬¤¢¤ê¤Þ¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï¥É¥é¥¤¥Ö¤Î¥â¥Ç¥ë¤Ë¤è¤ê¤Þ¤¹. SONY SDT-5000 327M ¤Ç¥Ç¡¼¥¿°µ½Ì¤ò¹Ô¤Ã¤¿¾ì¹ç¤Î¥ì¡¼¥È¤Ï 630kB/s ¤Ç¤¹. SONY SDT-5000 3.02¤Ç¤Ï 225kB/s¤Ç¤¹.
Kenneth Merry ken@ulc199.residence.gatech.edu¤ÎÊó¹ð¤Ë¤è¤ì¤Ð ¤³¤Î¥É¥é¥¤¥Ö¤«¤é¥Ç¡¼¥¿¤òÆÉ¤à¤¿¤á¤Ë¤Ï, ¥Ö¥í¥Ã¥¯¥µ¥¤¥º¤ò 512¥Ð¥¤¥È¤Ë¤·¤Þ ¤¹ (mt blocksize 512).
SONY SDT-5000 327M ¤Î¾ðÊó¤Ï Charles Henrich henrich@msu.edu ¤Ë¤è¤ëÊó¹ð¤Ç¤¹.
Êó¹ð¼Ô: Jean-Marc Zucconi <jmz@FreeBSD.ORG>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï TANDBERG TDC 3600 =08: type 1 removable SCSI 2¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤ÏQIC ¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎ̤Ï150/250MB¤Ç¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ë¤Ï´ñ̯¤ÊÊʤ¬¤¢¤ë¤³¤È¤¬ÃΤé¤ì¤Æ¤¤¤Þ¤¹¤¬, SCSI¥Æ¡¼¥×¥É¥é¥¤¥Ð (st(4)) ¤Ë¤ÏÌäÂê¤Ê¤¯Æ°¤¯¥³¡¼¥É¤¬´Þ¤Þ¤ì¤Æ¤¤ ¤Þ¤¹. ÌäÂê¤Î½¤À°¤ÈSCSI 2¤Ø¤Î¥³¥ó¥Ñ¥Á¥Ó¥ê¥Æ¥£¤òÆÀ¤ë¤¿¤á¤Ë¥Õ¥¡¡¼¥à¥¦¥§ ¥¢¤ò¤¢¤ë (¶ñÂÎŪ¤Ë¤ÏÉÔÌÀ¤Î) ¥Ð¡¼¥¸¥ç¥ó¤è¤ê¾å¤Ë¤·¤Æ¤¯¤À¤µ¤¤.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï80kB/s¤Ç¤¹.
IBM¤È EmeraldÀ½ÉʤΥæ¥Ë¥Ã¥È¤Ïư¤«¤Ê¤¤¤Ç¤·¤ç¤¦. ÌäÂê¤ò²ò·è¤¹¤ë¤¿¤á¤Ë¥Õ¥¡¡¼¥à¥¦¥§¥¢ EPROM¤ò¸ò´¹¤·¤Æ¤¯¤À¤µ¤¤.
Êó¹ð¼Ô: Michael Smith <msmith@atrad.adelaide.edu.au>
¤³¤ì¤Ï Tandberg TDC 3600¥É¥é¥¤ ¥Ö¤ËÈó¾ï¤Ë¤è¤¯»÷¤Æ¤¤¤Þ¤¹.
Êó¹ð¼Ô: Jörg Wunsch <joerg@FreeBSD.ORG>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï TANDBERG TDC 4222 =07 type 1 removable SCSI 2¤Ç¤¹.
¤³¤ì¤Ï QIC¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎ̤Ï2.5GB¤Ç¤¹. ¤³¤Î¥É¥é¥¤¥Ö¤Ï 60M (DC600A) °Ê¾å¤Î¤¹¤Ù¤Æ¤Î ¥«¡¼¥È¥ê¥Ã¥¸¤òÆÉ¤à¤³¤È¤¬¤Ç¤, 150MB (DC6150) °Ê¾å¤Î¤¹¤Ù¤Æ¤Î¥«¡¼¥È¥ê¥Ã¥¸¤ò ÆÉ¤ß½ñ¤¤Ç¤¤Þ¤¹. ¥Ï¡¼¥É¥¦¥§¥¢°µ½Ì¤Ï 2.5GB ¥«¡¼¥È¥ê¥Ã¥¸¤ò»ÈÍѤ·¤¿»þ¤Î ¥ª¥×¥·¥ç¥ó¤È¤·¤Æ¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Ë¤Ï´ñ̯¤ÊÊʤ¬¤¢¤ê¤Þ¤¹¤¬, FreeBSD ¤Î 2.2-current°Ê¹ß¤Î SCSI¥Æ¡¼¥×¥Ç¥Ð¥¤¥¹¥É¥é¥¤¥Ð (st(4)) ¤Ë¤ÏÂбþ¤¬ÁȤ߹þ¤Þ¤ì¤Æ¤¤¤Þ¤¹. ¤½¤ì°ÊÁ°¤Î¥Ð¡¼¥¸¥ç¥ó¤Î FreeBSD¤Ç¤Ïmt¤òÍѤ¤¤Æ¥Æ¡¼¥×¤«¤é1¥Ö¥í¥Ã ¥¯ÆÉ¤ß, ¥Æ¡¼¥×¤ò´¬Ìᤷ¤Æ¤«¤é¥Ð¥Ã¥¯¥¢¥Ã¥×¥×¥í¥°¥é¥à¤ò ¼Â¹Ô¤·¤Æ¤¯¤À¤µ¤¤. (mt fsr 1; mt rewind; dump ...).
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 600kB/s (¥Ç¡¼¥¿°µ½Ì»þ¤Î¥Ù¥ó¥À¤Ë¤è¤ë¸ø¾Î) ¤Ç, start/stop ¥â¡¼¥É¤Ç¤â 350kB/s ¤Ë¤Ï¤Ê¤ê¤Þ¤¹. ÍÆÎ̤µ¤¤¥«¡¼ ¥È¥ê¥Ã¥¸¤ò»È¤Ã¤¿¾ì¹ç¤Ë¤Ï¥ì¡¼¥È¤Ï²¼¤¬¤ê¤Þ¤¹.
Êó¹ð¼Ô: Jörg Wunsch <joerg@FreeBSD.ORG>
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï WANGTEK 5525ES SCSI REV7 3R1 type 1 removable SCSI 1 density code 0x11, 1024-byte blocks¤Ç¤¹.
¤³¤ì¤Ï QIC¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
ɸ½àÍÆÎÌ¤Ï 525MB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 180kB/s¤Ç¤¹.
60, 120, 150, 525MB ¤Î¥Æ¡¼¥×¤òÆÉ¤à¤³¤È¤¬¤Ç¤¤Þ¤¹. 60MB (DC600¥«¡¼¥È¥ê¥Ã¥¸) ¤Ë¤Ï½ñ¤¹þ¤à¤³¤È¤Ï¤Ç¤¤Þ¤»¤ó. 120¤ª¤è¤Ó150¥Æ¡¼ ¥×¤Ë³Î¼Â¤Ë¾å½ñ¤¤¹¤ë¤Ë¤Ï, Àè¤Ë¥Æ¡¼¥×¤ò¾Ãµî (mt erase) ¤·¤Þ¤¹. 120¤ª¤è¤Ó 150¤Î¥Æ¡¼¥×¤Ï 525MB¤Î¥Æ¡¼¥×¤è¤êÉý¤Î¹¤¤¥È¥é¥Ã¥¯¤ò»ÈÍѤ·¤Æ¤¤ ¤Þ¤¹(¥Æ¡¼¥×Åö¤¿¤ê¤Î¥È¥é¥Ã¥¯¿ô¤Ï¾¯¤Ê¤¯¤Ê¤ê¤Þ¤¹). ¥È¥é¥Ã¥¯¤ÎÉý¤Î``³°Â¦''¤Ë¤Ï¾å½ñ¤¤µ¤ì¤Þ¤»¤ó¤Î¤Ç, ¥Æ¡¼¥×¤¬¾Ãµî¤µ¤ì¤Ê¤¤¸Â¤ê ξ¦¤Ë¸Å¤¤¥Ç¡¼¥¿¤¬»Ä¤Ã¤¿¤Þ¤Þ ¿·¤·¤¤¥Ç¡¼¥¿¤¬ÃÖ¤«¤ì¤ë¤³¤È¤Ë¤Ê¤ê¤Þ¤¹.
¤³¤Î¥É¥é¥¤¥Ö¤Î´ñ̯¤ÊÊʤÏÃΤé¤ì¤Æ¤¤¤Æ, SCSI ¥Æ¡¼¥×¥É¥é¥¤¥Ð (st(4)) ¤ËÁȤ߹þ¤Þ¤ì¤Æ¤¤¤Þ¤¹.
¾¤Î¥Õ¥¡¡¼¥à¥¦¥§¥¢¤Î¥ê¥Ó¥¸¥ç¥ó¤Çư¤¯¤³¤È¤¬ ³Îǧ¤µ¤ì¤Æ¤¤¤ë¤â ¤Î¤Ï M75D¤Ç¤¹.
Êó¹ð¼Ô: Marc van Kempen <marc@bowtie.nl> REV73R1 Andrew Gordon <Andrew.Gordon@net-tel.co.uk> M75D
¤³¤Î¥É¥é¥¤¥Ö¤Î¥Ö¡¼¥È¥á¥Ã¥»¡¼¥¸¤Î¼±ÊÌ»Ò¤Ï WANGTEK 6200-HS 4B18 type 1 removable SCSI 2 Sequential-Access density code 0x13¤Ç¤¹.
¤³¤ì¤Ï DDS-1¥Æ¡¼¥×¥É¥é¥¤¥Ö¤Ç¤¹.
90m¥Æ¡¼¥×¤ò»ÈÍѤ·¤¿¾ì¹ç¤Îɸ½àÍÆÎÌ¤Ï 2GB¤Ç¤¹.
¥Ç¡¼¥¿Å¾Á÷¥ì¡¼¥È¤Ï 150kB/s¤Ç¤¹.
Êó¹ð¼Ô: Tony Kimball <alk@Think.COM>
¸¶ºî: David O'Brien <obrien@FreeBSD.ORG>. 23 November 1997.
Jordan »á¤ÎÁª¤ó¤ÀÁȹ礻 ¤Ç¤Õ¤ì¤é¤ì¤Æ¤¤¤ë¤è¤¦¤Ë FreeBSD ¥×¥í¥¸¥§¥¯¥È¤Ç¤Ï°ìÈÌŪ¤Ë¤Ï IDE CDROM ¤è¤ê¤â SCSI CDROM ¤ÎÊý¤¬¹¥¤Þ¤ì¤Æ¤¤¤Þ¤¹. ¤·¤«¤·Á´¤Æ¤Î SCSI CDROM ¥É¥é¥¤¥Ö¤¬Æ±¤¸¤Ç¤¢¤ë¤È¤¤¤¦¤ï¤±¤Ç¤Ï¤¢¤ê¤Þ¤»¤ó. ¤¤¤¯¤Ä¤«¤Î SCSI CDROM ¥É¥é¥¤¥Ö¤ÎÉʼÁ¤Ï IDE CDROM ¥É¥é¥¤¥Ö¤è¤ê¤â Ä㤤¤â¤Î¤Ç¤¢¤ë¤È´¶¤¸¤Æ¤¤¤ë¿Í¤â¤¤¤Þ¤¹. Åì¼Ç¤Ï¿®ÍêÀ¤¬¹â¤¤¤È¤¤¤¦É¾È½¤¬ ¤¢¤ê¤Þ¤·¤¿¤¬, 12ÇÜ®¤Î XM-5701A ¤Ï, SCSI ¥á¡¼¥ê¥ó¥°¥ê¥¹¥È¤Ç¤Ï ( ¥ª¡¼¥Ç¥£¥ª CDROM ¤ÎºÆÀ¸¤Ç) ²¿¼ïÎफ¤Î¥ª¡¼¥Ç¥£¥ªºÆÀ¸¥½¥Õ¥È¥¦¥§¥¢¤Ç ¥Ü¥ê¥å¡¼¥à¤Î¥³¥ó¥È¥í¡¼¥ë¤¬¤Ç¤¤Ê¤¤, ¤È¤¤¤¦ÉÔËþ¤Î¥á¡¼¥ë¤òÂçÎÌ¤Ë ¸«¤ë¤³¤È¤¬¤¢¤ê¤Þ¤·¤¿.
SCSI CDROM ¤Î¥á¡¼¥«¡¼´Ö¤Î¶¥Áè¤Î¤â¤¦°ì¤Ä¤Î¶ÉÌ̤Ï, SCSI µ¬³Ê¤ËÂФ¹¤ëÃé¼ÂÅ٤Ǥ¹. ¿¤¯¤Î SCSI CDROM ¤Ï ¥¿¡¼¥²¥Ã¥È¥¢¥É¥ì¥¹(ID)¤Î ¥Þ¥ë¥Á LUN ¤Ë±þÅú¤·¤Þ¤¹. ´ûÃΤε¬³Ê°ãÈ¿¥Ç¥Ð¥¤¥¹¤Ë¤Ï¥Æ¥£¥¢¥Ã¥¯¤Î6ÇÜ®¥É¥é¥¤¥Ö CD-56S 1.0D ¤¬¤¢¤ê¤Þ¤¹.