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Date: Sun, 21 Oct 2007 21:24:36 +0900
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Subject: [FreeBSD-users-jp 91090] Re: Disk I/F card for software raid
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$B2#ED$G$9!#(B

Norikatsu Shigemura $B$5$s$O=q$-$^$7$?(B:
> $B=EB<K!9n$G$9!#(B
> 
> On Sun, 21 Oct 2007 13:08:09 +0900
> FreeBSD <FreeBSD@jn1dff.dhis.prug.or.jp> wrote:
>> # atacontrol create RAID0 128 ad8 ad10 ad12 ad14
>> ar0: created
>> # mount /dev/ar0 /mnt/raid0
> 
> 	128$B%;%/%?!<(B(64KB $BC10L(B)$B$G%$%s%?!<%j!<%V$G$9$M!#(B

4$B!A(B512$B$^$G(B2$BG\$:$DJQ$($J$,$i;n$7$?$H$3$m!"(B
128$B$,0lHV@-G=$,$h$+$C$?$N$G(B128$B$K$7$F$$$^$9!#(B
64$B$d(B256$B$H$N:9$O(B1MB/sec$B0J2<$J$N$G$[$H$s$I:9$OL5$$$KEy$7$$$N$G$9$,!#(B

>> % dd if=16GB of=/dev/null bs=256b
>> 32768+0 records in
>> 32768+0 records out
>> 4294967296 bytes transferred in 52.901683 secs (81187725 bytes/sec)
>> $B%A%e!<%K%s%0$NM>CO$O$"$j$=$&$G$9$,(B($B%9%H%i%$%W%5%$%:$J$I(B)$B!"(B
>> $B$d$O$j(BPCI$B%P%9$NB.EY$,%\%H%k%M%C%/$K$J$C$F$$$k$h$&$G$9!#(B
> 
> 	$B;XDj$,(B 256 $B%V%m%C%/!a(B128KB $B$J$N$G(B, 1 I/O $B%j%/%(%9%H$G(B
> 	2 $BBf$N(B HDD $BJ,$7$+%"%/%;%9$K$$$1$F$^$;$s!#(B
> 
> 	1 I/O $B%j%/%(%9%H$G(B 4 $BBf%"%/%;%9$K$$$+$;$k$J$i(B $BG\$N(B 512b $B$OM_(B
> 	$B$7$$$H$3$m!#(B
> 
> 	$B$"$H$3$l$r4p?t$H$7$F(B, $B99$KG\(B, 2 $BG\(B, 3 $BG\$G8z2L$,=P$F$$$k$+(B
> 	($BK0OB$9$k$+(B)$B3NG'$7$F$_$F$/$@$5$$!#(B

$BM}O@>e$O$*$C$7$c$kDL$j$J$N$G$9$,!"(Biostat$B$GI=<($5$l$k(B1$B%H%i%s%6%/%7%g%s$N(B
$B:GBg%5%$%:$,(B128KB$B$J$N$G!"(Bdisk I/O$B$O(B128KB$B$KJ,3d$5$l$F=hM}$5$l$F$$$k$H(B
$B;W$C$F$$$^$9!#%=!<%9$rD4$Y$l$P$$$$$N$G$9$,>\$7$/8+$F$$$^$;$s!#(B

$B<B:]!"(Bdd$B$N%Q%i%a!<%?$r(Bbs=512b$B$K$7$F$b$[$H$s$I:9$O$"$j$^$;$s!#(B
$B:#%P%C%/%0%i%&%s%I$G%W%m%0%i%`$,F0$$$F$$$F@53N$JB,Dj$,$G$-$J$$$N$G!"(B
$B8e$[$I%"%$%I%k$K$J$C$?$H$-$K;X<($5$l$?J}K!$G7W$C$F$_$^$9!#(B

