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From: "Hirokazu WATANABE" <wnabe@par.odn.ne.jp>
To: <FreeBSD-users-jp@jp.FreeBSD.org>
References: <20041106084807.2FF0.SHINO@fornext.org> <007601c4c551$8f9c3b20$4741930a@knmsv001> <20041110105221.46C6.SHINO@fornext.org>
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Date: Wed, 10 Nov 2004 21:03:44 +0900
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Subject: [FreeBSD-users-jp 81670] Re: RAID =?ISO-2022-JP?B?GyRCQC0bKEI=?=
 =?ISO-2022-JP?B?GyRCRz0bKEI=?= 
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$BEOJU9@OB$G$9!#%U%)%m!<$"$j$,$H$&$4$6$$$^$9!#(B

From: "Shunsuke SHINOMIYA" <shino@fornext.org>
Sent: Wednesday, November 10, 2004 11:22 AM

>> $B6D$i$l$F$$$k$3$H$O$4$b$C$H$b$@$H;W$$$^$9!#$?$@!"F1$8%^%7%sFb$GHf3S(B
>> $B$9$kJ,$K$OLdBj$J$$$+$J$H;W$C$F$*$j$^$7$?!#G'<1$,4V0c$C$F$*$j$^$7$?$i(B
>> $B$4;XE&$/$@$5$$!#(B
> $B!!F1$8%^%7%s$G$b!"Av$k%W%m%0%i%`$,0[$J$k$N$G$"$l$P!"%W%m%0%i%`$K$h$C$F%G(B
> $B%P%C%0MQ$N5!9=$N1F6A$,0[$J$C$F$-$^$9$N$G!"0c$$$O$"$k$N$@$H;W$$$^$9!#(B

$B$=$&$G$9$M!#<B:]$KAv$k%3!<%IItJ,$b0c$&0J>e!"@-G=$X$N1F6AEY$bEvA30[$J$k(B
$B$H9M$($k$Y$-$G$7$?!#(B

>> $B!D$H$3$l$@$1$G$O>pJsNL(B0$B$J$N$G!"(BOS$B$r99?7$7$F3NG'$7$F$_$^$7$?!#(B2$B!A(B3$BF|(B
>> $BA0$N(B 5-stable $B$H!"Ls0lG/A0$N(B 5-current $B$G$9!#(B
> $B!!(Bad?$B$H(Bar?$B$NHf3S$O$*$$$F$*$$$?$H$7$F$b!"0lG/A0$N(B5-current$B$H:#$N(B5-stable
> $B$G$3$3$^$G:9$,$J$$$N$O>/$76C$-$G$9!#(B

$B$3$l$O@5D>0U30$G$7$?!#(Bcommit log $B$K;~!9!V(Bxx%$B$N@-G=8~>e!A!W$H$+=q$$$F$"$C(B
$B$?$j$9$k$N$G!"$b$C$HB.$/$J$C$F$$$k$+$H;W$C$F$$$?$s$G$9$,!D$I$&$d$iHs>o$K(B
$B8BDj$5$l$?4D6-$G$N8z2L$_$?$$$G$9$M!#$b$7$/$O!"==J,$K$=$l$rBG$A>C$9$@$1$N(B
$B@-G=Nt2=(B($B3N<B$J%(%i!<=hM}(B/$BGSB>=hM}Ey(B)$B$,H/@8$7$F$$$k$N$+!#(B
$B!t$O$?$^$?!"2<$N$h$&$KHf3S$,0UL#$r$J$7$F$$$J$$$N$+$b!#(B

> $B!!$^$?!"(Bdiskinfo$B$N7k2L$r8+$k$H!"(Bar0$B$O(Binside$B$NJ}$,(Boutside$B$h$jE>AwB.EY(B($B$3(B
> $B$l$C$F!"FI9~$_$@$1$N@-G=$G$9$h$M(B)$B$,>e$@$H$$$&7k2L$,=P$F$$$k$N$G!"$*$=$i(B
> $B$/@5$7$$B,Dj$,$G$-$F$$$J$$$N$G$O$J$$$+$H;W$$$^$9!#B,Dj%D!<%k$,E,@Z$G$O$J(B
> $B$$!"$H$$$&0UL#$G!#(B

$B$4$a$s$J$5$$!"$^$H$b$K%Y%s%A%^!<%/$d$C$?$3$H$,L5$$$N$G$h$/J,$+$j$^$;$s!#(B
$BB,Dj%D!<%k$,E,@Z$G$J$$$N$O3N$+$G$7$g$&$,!"(Bdiskinfo -t $B$d(B dd $B$,$3$N>l9g$K(B
$B$I$NDxEYNI$/$J$$$N$+A4A3M}2r$G$-$F$$$^$;$s!#$3$N$?$a!"E,@Z$JB,Dj%D!<%k(B
$B$H$7$F2?$r!"$I$N$h$&$K;H$($PNI$$$N$+$bJ,$+$i$J$$>uBV$J$N$G$9!#(B

> $B!!(Bdd$B$GB,Dj$5$l$?$H8@$&$3$H$G$9$,!"$3$l$K$D$$$F$b!"FC$K%G%#%9%/$N$I$3$r(Bdd
> $B$G%"%/%;%9$9$k$+$O9MN8$5$l$F$$$J$+$C$?$h$&$KFI$_<h$l$^$7$?$N$G!"F1$8;v$,(B
> $B8@$($k$H;W$$$^$9!#9MN8$5$l$F$$$?$N$G$"$l$P$4$a$s$J$5$$!#(B

$B$A$H[#Kf$G$9$,!"%G%#%9%/$N@hF,$+$i(B 1GB $BFI$s$G$$$k$H$$$&A[Dj$N85$G<B;\$7$F(B
$B$$$^$9!#$3$s$J46$8!#(B

5-current% dd if=/dev/ad4 of=/dev/null bs=64k count=16384
16384+0 records in
16384+0 records out
1073741824 bytes transferred in 22.628731 secs (47450377 bytes/sec)
5-current% dd if=/dev/ar0 of=/dev/null bs=64k count=32768
32768+0 records in
32768+0 records out
2147483648 bytes transferred in 47.980916 secs (44757037 bytes/sec)

5-stable% dd if=/dev/ad8 of=/dev/null bs=64k count=16384
16384+0 records in
16384+0 records out
1073741824 bytes transferred in 22.547857 secs (47620571 bytes/sec)
5-stable% dd if=/dev/ar0 of=/dev/null bs=64k count=32768
32768+0 records in
32768+0 records out
2147483648 bytes transferred in 45.663473 secs (47028478 bytes/sec)
$B"($3$N%G!<%?$OJ?6QCM$G$O$"$j$^$;$s$N$G!"$=$l$J$j$K8m:9$,$"$k$O$:!#(B

$B$b$A$m$s!"$3$N>l9g$b(B ar0$B$,<B:]$K$I$N%G%#%9%/(B/$BJ*M}%(%j%"$rFI$s$G$$$k$N(B
$B$+$OJ,$+$j$^$;$s!#$?$@!"0J2<$N$h$&$KFI$s$G$/$l$k$N$G$O$J$$$+$J$H4|BT$7(B
$B$F$$$^$7$?!#(B

disk1 + 0   (offset 0)
disk2 + 0   (offset 0)
disk1 + 32K (offset 1)
disk2 + 32K (offset 1)
disk1 + 64K (offset 2)
disk2 + 64K (offset 2)
...

$B$J$*!"0JA0=q$-K:$l$F$$$^$7$?$,$3$3$G%V%m%C%/%5%$%:$r(B 64K$B$H$7$F$$$k$N$O!"(B
ad $B;~$K(B ata-lowlevel.c:ata_generic_command() $B$rN.$l$k%G!<%?$r8+$F7h$a$?(B
$B0U?^E*$JCM$G$9!#(B[FreeBSD-users-jp 81598] $B$G>R2p$5$l$?%9%l%C%I$rFI$`$H!"(B
$B$I$&$d$i(B GEOM $B$G$3$N%5%$%:$KD4@0$5$l$F$$$k$i$7$$$G$9!#E>AwNL$N(B 1GB $B$O!"(B
$BBP>]5!$N<g5-21NL(B(512MB)$B$rD6$($k==J,$JBg$-$5$H$$$&$3$H$G$J$s$H$J$/@_Dj$7(B
$B$^$7$?!#(B

$B!t(Bbs=65k $B$H$9$k$H!"(B64k + 1k $B$N7WFs2s$N%j%/%(%9%H$,7+$jJV$5$l!"8+$+$1$N(B
$B!t@-G=$KBg$-$J1F6A$,$"$k$b$N$G!D!#(B
---
$BEOJU9@OB!w(B $BI\Cf(B
<wnabe@par.odn.ne.jp>

