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ch — SCSI ???ǥ????????󥸥? (???塼???ܥå???) ?ɥ饤??

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device ch device ch1 target 4 lun 0

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ch ?ɥ饤?Фϡ? SCSI ???ǥ????????󥸥??򥵥ݡ??Ȥ??ޤ??????Υɥ饤?Фϡ?¿???Υ????åȤ? ¸?ߤ??????ǥ?????ʣ???Υɥ饤?֤δ֤?¿?Ų????????ѤǤ????褦?ˤ??ޤ??? ?????󥸥??ǥХ????ˤϡ????ץ??????Ȥ??ƥС??????ɥ꡼?????????դ??뤳?? ???Ǥ??ޤ??????Υ꡼?????Ȥ??????ǥ??????տ魯?????????ɤ߹??ߤޤ???

SCSI ?????󥸥??򥷥??ƥ????Ȥ߹??????ˡ?SCSI ?????ץ????????Ȥ߹????? ????ɬ?פ??????ޤ???

?֡??Ȼ??? SCSI ?????ץ????ץ????֤??Ƥ????Ȥ??ˡ? SCSI ?Х??????????ǥХ?????õ???ޤ???`Changer' ?????פǤ????ȱ????????ǥХ????? ???Ĥ????ȡ????????? ch ?ɥ饤?Фˡ֥????å??פ????ޤ??? 2.1 ???????Υ??꡼???? FreeBSD ?Ǥϡ??ǽ??˸??Ĥ??ä??ǥХ????? ch0 ?˥????å????졢?ʸ師?Ĥ??ä??ǥХ????Ͻ缡?? ch1 ?ʤɤ˥????å??????ޤ??? 2.1 ???顢?????ǥХ??????ɤ? ch ???˥åȤȤ?????³???٤????????? ?Ǥ????褦?ˤʤ??ޤ????????Τ????Υ????ͥ??????ˤĤ??Ƥϡ? scsi(4) ?򻲾Ȥ??Ʋ???????

?????ͥ?????

?????κݤˡ????ץ??????Ȥ??? count ?????ꤷ?????硢???ο??????? SCSI ???ǥ????????󥸥㤬???ꤵ???ޤ??? ?ɥ饤?Фε????ΰ??ΤۤȤ??ɤϡ??ǥХ????????Ĥ??ä????ˤΤ? ???????Ƥ??????Τǡ??????????ΥǥХ????????ꤷ?Ƥ? ?⤯?ϤĤ??ޤ??? (?ҤȤ??Ӻǽ??ΥǥХ??????ɥ饤?Ф??Ȥ߹?????????)??

IOCTL

?桼???⡼?ɥץ????????ϡ????˼??? ioctl ???Ȥäƥ????󥸥??ɥ饤?Ф? ?ǡ????Τ????Ȥ????Ԥʤ??ޤ????????ͥ??ȥ????󥸥??ǥХ????Ȥδ֤? ?ǡ????Τ????Ȥ??ǻ??Ѥ????롢?????󥸥㥨???????ȤΥ??ɥ쥹?ϡ? 0 ?????Ϥޤ????????ɥ쥹?˳??????Ƥ????ޤ????????????ȤΥ????פ? ???Τ褦?˻??ꤷ?ޤ???

CHET_MT: ???ǥ?????ư?????????? (?ԥå?)
CHET_ST: ???ȥ졼???????????? (?????å?)
CHET_IE: ????????/?????Ф??????????? (?ݡ?????)
CHET_DT: ?ǡ???ž???????????? (?ɥ饤??)

???˼??? ioctl(2) ?ƤӽФ????????󥸥???Ŭ?Ѥ????ޤ??????????ϥإå??ե????? ⟨sys/chio.h⟩ ???????????ޤ???

CHIOMOVE

(struct changer_move) ?????ϡ????ߤΥԥå????Ѥ??ơ????ǥ????򤢤륨???????Ȥ????̤? ?????????Ȥ˰?ư?????ޤ? (MOVE MEDIUM)????ư???Ȱ?ư???? ?????????Ȥϡ?changer_move ??¤?Τ????ǻ??ꤷ?ޤ??????ι?¤?Τϡ? ???ʤ??Ȥ⼡?˼????ե??????ɤ??????ޤ???

u_int cm_fromtype; /* ??ư???????????ȤΥ????? */
u_int cm_fromunit; /* ??ư???????????Ȥ????????˥å? */
u_int cm_totype;   /* ??ư?襨???????ȤΥ????? */
u_int cm_tounit;   /* ??ư?襨???????Ȥ????????˥å? */
u_int cm_flags;	   /* ????¾?ե饰 */

cm_flags ?ե??????ɤ? CM_INVERT ?????ꤵ???Ƥ??????硢 ???ǥ????????󥸥??ϰ?ư???˥??ǥ?????ȿž???????褦?˻ؼ??????ޤ???

CHIOEXCHANGE

(struct changer_exchange) ?????ϡ???ư???????????Ȥˤ??????ǥ??????ǽ??ΰ?ư?襨???????Ȥ˰?ư?????? ?ǽ??ΰ?ư?襨???????Ȥˤ??ä????ǥ????? 2 ???ܤΰ?ư?襨???????Ȥ? ??ư?????ޤ???ñ???ʸ򴹤ξ??硢??ư???? 2 ???ܤΰ?ư???Ȥ?Ʊ???Ǥ??? ɬ?פ??????ޤ????????????ο??Ԥ˺ݤ????ߤΥԥå????Ѥ??????ޤ????ƶ??? ?????륨???????ȤΥ??ɥ쥹?ϡ?changer_exchange ??¤?Τ˴ޤ??? ioctl ???Ф??ƻ??ꤷ?ޤ??????ι?¤?ΤϾ??ʤ??Ȥ⼡?????Ǥ??????ޤ???

u_int ce_srctype;	 /* ??ư???????????ȤΥ????? */
u_int ce_srcunit;	 /* ??ư???????????˥å? */
u_int ce_fdsttype; /* ?ǽ??ΰ?ư?襨???????ȤΥ????? */
u_int ce_fdstunit; /* ?ǽ??ΰ?ư???????????˥å? */
u_int ce_sdsttype; /* 2???ܤΰ?ư?襨???????ȤΥ????? */
u_int ce_sdstunit; /* 2???ܤΰ?ư???????????˥å? */
u_int ce_flags;	 /* ????¾?ե饰 */

ce_flags ?????ǡ?CM_INVERT1 ?? CM_INVERT2 ?????? ?Ǥ??????????Ϥ??줾?졢?ǽ??Υ??ǥ????? 2 ???ܤΥ??ǥ???????ư???? ȿž?????ޤ???

???ε?ǽ?ϥƥ??Ȥ??Ƥ??ޤ?????

CHIOPOSITION

(struct changer_position) ?????ϡ????ߤΥԥå?????ư???????ꤷ???????????Ȥ??????֤??ޤ??? ?????????Ȥ? changer_position ??¤?Τǻ??ꤷ?ޤ????????Ͼ??ʤ??Ȥ? ???????Ǥ??????ޤ???

u_int cp_type;  /* ?????????ȤΥ????? */
u_int cp_unit;  /* ?????????Ȥ????????˥å? */
u_int cp_flags; /* ????¾?ե饰 */

cp_flags ?ե??????ɤ? CP_INVERT ???????Ǥ????????? ??ư???˥ԥå???ȿž?????ޤ???

CHIOGPICKER

(int) ?????ϡ????ߤΥԥå??????????ɥ쥹???֤??ޤ???

CHIOSPICKER

(int) ?????ϡ?Ϳ???????????ɥ쥹???ؤ??ԥå??????򤷤ޤ???

CHIOGPARAMS

(struct changer_params) ?????ϡ????ǥ????????󥸥????????ѥ??᡼?????֤??ޤ??????? ioctl ?ϡ? ?桼?????Ϥ??? changer_params ??¤?ΤΡ? ???ʤ??Ȥ??ʲ??Υե??????ɤ??????ޤ???

u_int cp_npickers; /* ?ԥå??ο? */
u_int cp_nslots;   /* ?????åȤο? */
u_int cp_nportals; /* ????????/?????Ф??ݡ??????ο? */
u_int cp_ndrives;  /* ?ɥ饤?֤ο? */

???ץꥱ?????????? CHIGSTATUS ioctl ???Ѥ??ƥ??塼???ܥå????? ???֤?Ĵ?٤????????äơ????塼???ܥå????ν??????䤤???碌???ݤˡ????? ?ƤӽФ??????ѤǤ??ޤ???

CHIOIELEM

?????ϡ????ǥ????????󥸥??ǥХ??????Ф???INITIALIZE ELEMENT STATUS ?ƤӽФ????Ԥʤ??ޤ????????ˤ??ꡢ???ǥ????????󥸥??ϡ??????ɤ??Ƥ??? ???ǥ????˴ؤ??????????־????򹹿??????????ޤ????????󥸥㤬???٥??꡼???? ???ľ??硢?С??????ɥ??٥????????⤢?碌?ƹԤʤ??ޤ??????θƤӽФ??Ǥϡ? ch ?ɥ饤?Фξ??֤ϱƶ????????ޤ?????

CHIOGSTATUS

(struct changer_element_status_request) ?????ϡ????ǥ????????󥸥??ǥХ??????Ф???READ ELEMENT STATUS ?ƤӽФ????Ԥʤ??ޤ??????θƤӽФ??ϥ??ǥ????????󥸥??? ?????????Ⱦ??־??????ɤ߹??ߡ??????? changer_element_status ??¤?Τ????????Ѵ????ޤ???

CHIOGSTATUS ?θƤӽФ????Ȥˡ????륿???פ? 1 ?İʾ??Υ????????Ȥξ??֤? ?䤤???蘆???ޤ???

???ץꥱ?????????? changer_element_status_request ??¤?Τ? ch ?ɥ饤?Ф??Ϥ??ޤ??????ι?¤?Τϼ??˼????ե??????ɤ??????ޤ???

u_int                          cesr_element_type;
u_int                          cesr_element_base;
u_int                          cesr_element_count;
u_int                          cesr_flags;
struct changer_element_status *cesr_element_status;

?ɥ饤?ФϤ??ι?¤?Τ??ɤ߹??ߡ??????ס??????١??????ɥ쥹???????????ȿ? ?????ꤷ??cesr_element_status ?ե??????ɤ??ؤ? changer_element_status ??¤?Τ??????ˤɤξ??????֤??????Τ??ޤ??????ץꥱ?????????ϡ? cesr_element_count ?Ĥξ??ֹ?¤?? (???򸫤Ʋ?????) ???ݻ??????Τ? ??ʬ???礭???Υ??????????????Ƥ?ɬ?פ??????ޤ???cesr_flags ?˥??ץ??????? CESR_VOLTAGS ?????ꤷ???ܥ??塼?ॿ?? (?С???????) ?????򥸥塼???ܥå??????? ?ɤ߹??????֤?ɬ?פ????뤳?Ȥ????ΤǤ??ޤ???

cesr_element_base ?ե??????ɤ? cesr_element_count ?ե??????ɤϡ? ?????󥸥???ʪ??Ū?????˾Ȥ餷?????????ͤǤʤ????Фʤ??ޤ??󡣤⤷ ???????ͤǤʤ????硢 CHIOGSTATUS ioctl ?? EINVAL ???顼?????ɤ??֤??ޤ???

?????????ȤˤĤ??Ƥξ????ϡ?changer_element_status ??¤?Τ??????????? ?֤????ޤ??????ι?¤?ΤϾ??ʤ??Ȥ⼡?˼????ե??????ɤ??????ޤ???

u_int            ces_addr;      /* ???ǥ????????󥸥??Υ????????ȥ??ɥ쥹 */
u_char           ces_flags;     /* ?ʲ??? CESTATUS ???????򻲾? */
u_char           ces_sensecode; /* ?????????Ȥ??ɲå??󥹥????? */
u_char           ces_sensequal; /* ?ɲå??󥹥????ɽ????? */
u_char           ces_invert;    /* ȿž?ӥå? */
u_char           ces_svalid;    /* ??ư?????ɥ쥹 (ces_source) ??ͭ?? */
u_short          ces_source;    /* ???ǥ????ΰ?ư?????ɥ쥹 */
changer_voltag_t ces_pvoltag;   /* ?ץ饤?ޥ??ܥ??塼?ॿ?? */
changer_voltag_t ces_avoltag;   /* ???إܥ??塼?ॿ?? */
u_char           ces_idvalid;   /* ces_scsi_id ??ͭ?? */
u_char           ces_scsi_id;   /* ?????????Ȥ? SCSI id (ces_idvalid ???? 0 ?ξ???) */
u_char           ces_lunvalid;  /* ces_scsi_lun ??ͭ?? */
u_char           ces_scsi_lun;  /* ?????????Ȥ? SCSI lun (ces_lunvalid ???? 0 ?ξ???) */

ces_addr ?ե??????ɤϡ????ǥ????????󥸥??κ?ɸ?Ϥ?ɽ???? ?????????ȤΥ??ɥ쥹???ݻ????ޤ????ɥ饤?ФϤ????????Ѥ??ޤ????? ??????Ū?Τߤǻ??Ѥ??Ʋ???????

ces_flags ?ե??????ɤ??Ф??????˼????ե饰???????????ޤ???

CESTATUS_FULL: ???ǥ?????¸?ߤ??ޤ???
CESTATUS_IMPEXP: ???ǥ??????֤????Τϥ??ڥ졼???Ǥ? (?ԥå????֤??????ΤǤϤ????ޤ???)??
CESTATUS_EXCEPT: ???Υ????????Ȥ??㳰Ū???? (?㤨?С??С??????ɥ??٥뤬???????͡? ?С??????ɤ??ޤ??????????Ƥ??ʤ?) ?ˤ????ޤ???
CESTATUS_ACCESS: ???Υ????????Ȥϥԥå??ˤ??äƥ?????????ǽ?ʾ??֤Ǥ???
CESTATUS_EXENAB: ???Υ????????Ȥϥ??ǥ????????Ф??򥵥ݡ??Ȥ??Ƥ??ޤ???
CESTATUS_INENAB: ???Υ????????Ȥϥ??ǥ??????????ߤ򥵥ݡ??Ȥ??Ƥ??ޤ???

???٤ƤΥ????????ȥ????פ??Ф????٤ƤΥե饰??ͭ???Ȥϸ¤??ʤ????Ȥ? ???դ??Ʋ???????

??

???ΥС????????? ch ?ɥ饤?Фϡ?DEC TZ875 (5 ?????åȡ?1 DLT ?ɥ饤??) ?? Breece Hill Q47 (60 ?????åȡ?4 DLT ?ɥ饤?֡??С??????ɥ꡼???դ?) ???Ѥ??ƥƥ??Ȥ??? ?????ޤ???

?ƥ??Ȥ????ѤǤ????ǥХ?????ɬ?פʥ??ޥ??ɤ򥵥ݡ??Ȥ??Ƥ??ʤ??Ȥ??? ???¤ˤ??ꡢ ch ?ɥ饤?Ф????ݡ??Ȥ??뵡ǽ??¿???ϡ??????˥ƥ??ȤǤ??Ƥ??ޤ??󡣤????ϡ? ???إܥ??塼?ॿ???????ǥ???ȿž???????????Ȥλ???????/?????Ф???? ʣ???ԥå????????¾?ε?ǽ???????ޤ???

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ch ?ϡ? And Communications, http://www.and.com/ ?? Jason R. Thorpe ⟨thorpej@and.com⟩ ?????Ҥ??ޤ??????????򡢤??μ??ΥǥХ????????äƤ??? Stefan Grefen ⟨grefen@goofy.zdv.uni-mainz.de⟩ ???????ƥ????դ??ä??ޤ????? ?????? CAM ?˰ܿ??????Τϡ? Kenneth Merry ⟨ken@FreeBSD.ORG⟩ ?Ǥ??? ?????򹹿????ƥܥ??塼?ॿ???򥵥ݡ??Ȥ????褦?ˤ????Τϡ? Hans Huebner ⟨hans@artcom.de⟩ ?Ǥ???

??Ϣ?ե?????

/dev/ch[0-9]: ?ǥХ????????ȥ?

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???ǥ????????󥸥㤬 ch ?ɥ饤?Ф??׵᤹?뵡ǽ?򥵥ݡ??Ȥ??Ƥ??ʤ????硢?????ǵ??Ҥ??? ioctl ?? ?Ф??????󥽡??륨?顼???å??????ȥ??顼?꥿???󥳡??ɤ????????ޤ???

??Ϣ????

chio(1), cd(4), sd(4), st(4)

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ch ?ϡ?386BSD 0.1 ?Ǹ????ޤ?????