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To: man-jp-reviewer@jp.freebsd.org
In-Reply-To: Your message of "Sun, 13 Jun 1999 11:37:53 +0900"
	<199906130224.LAA19438@bio.titech.ac.jp>
References: <199906130224.LAA19438@bio.titech.ac.jp>
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Date: Mon, 14 Jun 1999 01:02:23 +0900
From: Kazuo Horikawa <k-horik@yk.rim.or.jp>
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 $BKY@n$G$9!#(B

$B$D$N$@$5$s!'(B
> $BCY$/$J$j$^$7$?$,!"(Bda.4$B$N=iLu$G$9!#(B
 $B$*$D$+$l$5$^$G$9!#(B

> $B;w$?$b$N$K!"=i4|2=$5$l$F$$$J$$(B
	$BF1MM$K!"(B
$B$/$i$$$NJ}$,$h$$$+$b$7$l$^$;$s!#(B
> ($B$^$?$O(B
> .No $BHs(B Ns Tn FreeBSD )
> $B%9%i%$%9$,3+$+$l$?>l9g!"$=$N%G%#%9%/%i%Y%k$O(B
> $B%I%i%$%V$K$h$C$FJV$5$l$k%Q%i%a!<%?$G=i4|2=$5$l!"(B
> $BC10l$N(B
> .Sq Li c
> $B%Q!<%F%#%7%g%s$G%9%i%$%9A4BN$rJq3g$7$^$9!#(B

	($B$^$?$O(B
	.No $BHs(B Ns Tn FreeBSD )
$B$N$H$3$m$O!"(B
	($B$^$?$OHs(B
	.Tn FreeBSD )
$B$GNI$$$H;W$$$^$9!#(B

> $B%G%P%$%9%-%c%C%7%e$N8z2L$r$b$?$i$9%Q%i%a!<%?$O%b!<%I%Z!<%8(B8$B!"(B
> $B%-%c%C%7%e@)8f%Z!<%8$KG<$a$i$l$F$$$^$9!#(B
 $BF|K\8l$N!V!"!W$KEy2A$N0UL#$r;}$D$H2r<a$7$F$b$i$&$N$O$A$g$C$HFq$7$$$+(B
$B$b$7$l$J$$$N$G!"(B
	$B%G%P%$%9%-%c%C%7%e$N8z2L$r$b$?$i$9%Q%i%a!<%?$O%b!<%I%Z!<%8(B 8$B!"(B
	$B$9$J$o$A%-%c%C%7%e@)8f%Z!<%8$KG<$a$i$l$F$$$^$9!#(B
$B$J$I!"!V$9$J$o$A!W!V$D$^$j!W$J$I$rJd$C$F$O$I$&$G$7$g$&!#(B

> $BFI$_9~$_%-%c%C%7%e$O2?EY$bMQ$$$i$l$k%G!<%?$@$1$G$J$/!"(B
> $BA`:n$K@h$s$8$FFI$_9~$_$,3+;O$5$l$?(B
> $B%G%P%$%9$+$i$N%G!<%?$rJ]B8$9$k$?$a$KMQ$$$i$l$^$9!#(B
device initiated read ahead operations $B$G(B
$B!V%G%P%$%9$K$h$k@hFI$_A`:n!W(B
$B$H$$$&0UL#$G$O$J$$$G$7$g$&$+!#(B
	$BFI$_9~$_%-%c%C%7%e$O!"2?EY$bMQ$$$i$l$k%G!<%?$@$1$G$J$/!"(B
	$B%G%P%$%9$K$h$k@hFI$_A`:n$N%G!<%?$r3JG<$9$k$?$a$KMQ$$$i$l$^$9!#(B

> $B%j!<%I%-%c%C%7%e$O%f!<%6!<$KF)2a7?$G!"(B
> $B$^$C$?$/M-32$J8z2L$O$J$/!"M-8z$K$G$-$^$9!#(B
	$B%j!<%I%-%c%C%7%e$O%f!<%6$KBP$7$FF)2a$G$"$j!"(B
	$BM-8z$K$7$F$b$^$C$?$/32$O$"$j$^$;$s!#(B
# $B%f!<%6!<$O%f!<%6$K$7$F$/$@$5$$!#(B

> $BFI$_9~$_%-%c%C%7%e$r;}$C$?$[$H$s$I$N%G%P%$%9$O$=$N5!G=$,5v2D$5$l$F!"(B
                                                          $BM-8z$K$5$l$F!"(B
> $B9)>l$+$i=P2Y$5$l$F$$$^$9!#(B
 ($B$^$?$O!"(BBAD BLOCK REVOVERY $B$N$H$3$m$G$A$g$C$H=$@5$7$F$7$^$C$F$$$k$N$K(B
$B$"$o$;$F(B)
	$BFI$_9~$_%-%c%C%7%e$r;}$C$?$[$H$s$I%G%P%$%9$O!"(B
	$B9)>l=P2Y;~$K$3$N5!G=$,M-8z$K$5$l$F$$$^$9!#(B

> $B%j!<%I%-%c%C%7%e$O%-%c%C%7%e@)8f%b!<%I%Z!<%8$N(B
> .Tn RCD
> (Read Cache Disable) $B%S%C%H$r%;%C%H$9$k$3$H$G!"(B
> $BIT5v2D$K$G$-$^$9!#(B
 $B8e$NJ}$G(B 'Auto Write Reallocation' 'Auto Read Reallocation' $B$rK]Lu$7(B
$B$F$$$k$N$H!"$3$3$GK]Lu$7$F$$$J$$$N$H$G$O!"%9%?%$%k$NBP1~$,$H$l$F$$$J$$(B
$B$H;W$$$^$9!#E}0l$7$F$$$?$@$1$?$i$H;W$$$^$9!#(B

> $B$7$+$7!"$=$l$G$b$J$*!"L5DdEEEE8;AuCV(B(UPS)$B$rHw$($?=q$-9~$_%-%c%C%7%e$r(B
> $B2DG=$K$7$?%G%P%$%9$N%7%9%F%`$G$O!"?d>)$5$l$^$9!#(B
 $B!V(B(UPS)$B!W$NA08e$K$O6uGr$rF~$l$F$/$@$5$$!#(B
	$B$7$+$7!"$=$l$G$b$J$*!"L5DdEEEE8;AuCV(B (UPS) $B$rHw$($?=q$-9~$_(B
	$B%-%c%C%7%e$rM-8z$K$7$?%G%P%$%9$N%7%9%F%`$G$O!"?d>)$5$l$^$9!#(B

> .Nm da
> $B%G%P%$%9%I%i%$%P$O!"(B
> $B%G%P%$%9$N:G8e$N%/%m!<%:!"$^$?$OM=4|$7$J$$%7%c%C%H%@%&%s(B($B%Q%K%C%/(B)
> $B%$%Y%s%H$N$H$-$K%-%c%C%7%e$H%a%G%#%"$,F14|$9$k$3$HJ]>Z$7$^$9!#(B
                                                   $B$r(B
$B!V(B($B%Q%K%C%/(B)$B!W$NA08e$K$O6uGr$rF~$l$F$/$@$5$$!#(B
	$B!D$^$?$OM=4|$7$J$$%7%c%C%H%@%&%s(B ($B%Q%K%C%/(B) $B%$%Y%s%H$N$H$-$K!"(B
	$B%-%c%C%7%e$H%a%G%#%"$,F14|$9$k$3$H$rJ]>Z$7$^$9!#(B

> $B%*%Z%l!<%F%#%s%0$,Dd;_$9$k$3$H$NJs9p$r$9$k$H!"(B
> $B%G%P%$%9%I%i%$%P$O!"EE8;$N@ZCG$,0BA4$G$"$k$3$H$rJ]>Z$7$^$9!#(B
	$B$3$l$K$h$j!"%*%Z%l!<%F%#%s%0%7%9%F%`$,Dd;_$7$?$3$H$rJs9p$7$?8e$G$O!"(B
	$BEE8;$r@ZCG$7$F$b0BA4$G$"$k$3$H$,J]>Z$5$l$^$9!#(B
$B86J8$O(B This ensures that it is safe to disconnect power once the
operating system has reported that it has halted. $B$G!"(BThis $B$O(B $BD>A0$NJ8(B 
(da $B%G%P%$%9%I%i%$%P$O!A%-%c%C%7%e$H%a%G%#%"$,F14|$9$k$3$H$rJ]>Z$7$^$9!W(B
$B$G$7$g$&!#(B

> $B=q$-9~$_%-%c%C%7%e$O%-%c%C%7%e@)8f%b!<%I%Z!<%8$N(B
> .Tn WCE
> (Write Cache Enable) $B%S%C%H$r%;%C%H$9$k$3$H$G(B
> $B5v2D$K=PMh$^$9!#(B
 $B8e$NJ}$G(B 'Auto Write Reallocation' 'Auto Read Reallocation' $B$rK]Lu$7(B
$B$F$$$k$N$H!"$3$3$GK]Lu$7$F$$$J$$$N$H$G$O!"%9%?%$%k$NBP1~$,$H$l$F$$$J$$(B
$B$H;W$$$^$9!#E}0l$7$F$$$?$@$1$?$i$H;W$$$^$9!#(B


> .Sh $B%?%0IU$-%-%e!<%$%s%0(B
> .Nm da
> $B%G%P%$%9%I%i%$%P$O%?%0IU$-%-%e!<%$%s%0$H$7$FCN$i$l$F$$$k(B SCSI $B$NFCD'$r40A4$J(B
> $B@h?J5!G=$H$7$F<h$j9~$_$^$9!#(B
tale advantage of hoge $B$G(B hoge $B$rMxMQ$9$k$H$$$&0UL#$G$9$+$i!"(B
	da $B%G%P%$%9%I%i%$%P$O!"%?%0IU$-%-%e!<%$%s%0$H$7$FCN$i$l$F$$$k(B
	SCSI $B$NFCD'$r!"40A4$KMxMQ$7$^$9!#(B
$B$J$I$H$7$?J}$,$h$$$H;W$$$^$9!#(B

> $B8=:_$N%X%C%I$N0LCV$K$h$j6a$$%5!<%S%9$NMW5a$K$h$C$F!"IT3NDj$K(B
> $B1d4|$5$;$i$l$k$+$b$7$l$J$$%a%G%#%"$N1s$$ItJ,$X$N%H%i%s%6%/%7%g%s$,!"(B
> $B$A$g$&$INI$$J}K!$G40N;$9$k$3$H$rJ]>Z$9$k$?$a$K!"(B
> $BJB$YJQ$($?%?%0IU$-%H%i%s%6%/%7%g%s$,!"%G%P%$%9$NA`:n$,B3$$$F$$$k4V!"(B
> 15$BIC$4$H$KAw$i$l$^$9!#(B
$B$A$g$C$HD9$$$N$G!"(B
	$B8=:_$N%X%C%I$N0LCV$K$h$j6a$$%5!<%S%9$NMW5a$K$h$C$F!"(B
	$B%a%G%#%"$N1s$$ItJ,$X$N%H%i%s%6%/%7%g%s$,(B
	$BIT3NDj$K1d4|$5$;$i$l$k$+$b$7$l$^$;$s!#(B
	$B$3$N$h$&$J%H%i%s%6%/%7%g%s$,E,@Z$J;~4|(B (*1) $B$K40N;$9$k$3$H$r(B
	$BJ]>Z$9$k$?$a$K!"(B
	$B%G%P%$%9$NA`:n$,B3$$$F$$$k4V!"(B
	$B=gHVIU$1$5$l$?%?%0IU$-%H%i%s%6%/%7%g%s(B 1 $B$D(B (*2) $B$,(B
	15 $BIC$4$H$KAw$l$^$9!#(B
$B$J$I$H$7$?$i$I$&$G$7$g$&!#(B(*1)(*2) $B$NItJ,$O$A$g$C$H8mLu$@$C$?$H;W$$$^$9!#(B

	(*1) timely fashion
	(*2) an orderd tagged transaction ($B$b$C$HE,@Z$J=Q8l$,$"$k$+$b(B)


> $B%a%G%#%"$N=$I|%Q%i%a!<%?$O%b!<%I%Z!<%8(B1$B!"FI$_=q$-%(%i!<=$I|%b!<%I(B
> $B%Z!<%8$K0LCV$7$F$$$^$9!#(B
 $BF|K\8l$N!V!"!W$KEy2A$N0UL#$r;}$D$H2r<a$7$F$b$i$&$N$O$A$g$C$HFq$7$$$+(B
$B$b$7$l$J$$$N$G!"(B
	$B%a%G%#%"$N=$I|%Q%i%a!<%?$O%b!<%I%Z!<%8(B 1$B!"$9$J$o$AFI$_=q$-%(%i!<(B
	$B=$I|%b!<%I$K$"$j$^$9!#(B
$B$J$I!"!V$9$J$o$A!W!V$D$^$j!W$J$I$rJd$C$F$O$I$&$G$7$g$&!#(B

> $BB?$/$N%G%P%$%9$O!"$3$l$i$N5!G=$,M-8z$K$5$l$F!"9)>l$+$i=P2Y$5$l$F$O(B
> $B$$$^$;$s!#(B
 ($B86J8$b$"$^$j$h$m$7$/$J$$$H;W$&$N$G$9$,(B)
	$BB?$/$N%G%P%$%9$O!"9)>l=P2Y;~$K$3$l$i$N5!G=$,L58z$K$5$l$F$$$^$9!#(B
$B$J$I$H$9$k$N$O$I$&$G$7$g$&!#(B


> .It Dv DIOCGDINFO
> $B%I%i%$%V$N%G%#%9%/%i%Y%k$N(B in-core $B%3%T!<$r%+!<%M%k$+$i(B
> $BFI$_9~$_$^$9!#$b$7!"%I%i%$%V$,0lEY$b=i4|2=$5$l$F$$$J$$$H$-$O!"(B
> $B2>$N%G%#%9%/%i%Y%k$rM?$(!"$=$N>l9g$K$O!"(B
> .Tn SCSI
> $BLd$$9g$o$;%3%^%s%I$+$i!"FI$_9~$s$@>pJs$r4^$s$G$$$^$9!#(B
camcontrol(8) $B$G(B inquiry $B$N$^$^$H$7$F$$$^$9$N$G!"(B
$B$3$3$G$b(B inquiry $B$N$^$^$K$7$F$$$?$@$-$?$/!#(B

> $B?7$?$K%a%G%#%"$NA^F~$d%G%P%$%9$NCV$-49$($K$h$kIT@5$J>u67$rHr$1$k$?$a$K!"(B
> $B8E$$%G%P%$%9$r;2>H$7$F$$$k:G8e$N%U%!%$%k5-=R;R$,JD$8$i$l$k$^$G!"(B
> $B%G%P%$%9$X$N$9$Y$F$N%"%/%;%9$OGK4~$5$l$^$9!#(B
	$B?7$?$KA^F~$5$l$?%a%G%#%"$dCV$-49$($i$l$?%G%P%$%9$N(B
	$BGK2u$rKI$0$?$a$K!"(B
$B$G$O$J$$$G$7$g$&$+!#86J8$O(B
To avoid corruption of a newly inserted piece of media or a
replacement device, all accesses to the device will be dis carded
until the last file descriptor referencing the old device is closed.

> .No Ar n Ns $BHVL\$N(B
$B$3$3$O(B
	.Ar n
	$BHVL\$N(B
$B$G$h$$$H;W$$$^$9!#$b$&0l2U=j$bF1MM$G$9!#(B
--
$BKY@nOBM:(B
