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From: Katsunori Obata <obata-k@honsha.meidensha.co.jp>
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Date: Fri, 29 Nov 2002 00:32:43 +0900
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Subject: [FreeBSD-users-jp 72379] Re: RAID5 performance(software,hardware)
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$B>.H*$G$9!#(B

Kazumasa Gotoh wrote:

>$BJ,$+$C$F$O$$$^$7$?$,!"(BUltra Wide SCSI $B$h$j$b(B ATA100 $B$NJ}$,$:$C$HB.$$$s(B
>$B$G$9$M!#$A$g$C$HJ#;(!#(B
>$B$7$+$7!"(BUltra Wide SCSI $B$NBS0h$O(B 40MB/s $B$G$9$,!"$"$^$jB.EY$,=P$F$J$$(B
>$B$G$9$M!#(B20MB/s $B$/$i$$$O=P$k$+$H;W$C$F$?$s$G$9$,!D(B
>  
>
$B:G6a!"F1$8$h$&$K=q$+$l$F$$$k$N$r$h$/L\$K$9$k$N$G$9$,!"$3$N$H$-$N#S#C#S#I(B
$B#B#I#O#S$N(B
$B@_Dj$O$I$&$J$C$F$$$?$N$G$7$g$&$+!)(B
$B#S#C#S#I$O#I#D#E$H0c$C$FBgDq$N>l9g%3%s%H%m!<%i<+?H$K%(%i!<D{@55!G=$r;}$C(B
$B$F$$$^$9!#(B
$BDL>o!"$3$N5!G=$,M-8z$K$J$C$F$$$k$N$G!"$3$l$rL58z!J(Bwrite back->write
through$BEy!K(B
$B$KJQ99$9$l$P$$$/$i$+B.EY$O2~A1$5$l$k$N$G$O$J$$$G$7$g$&$+!)(B
$BC"$7!"$3$N>uBV$G;HMQ$9$k$N$G$"$l$P(BSCSI$B$K$9$k0UL#$,$"$^$j46$8$i$l$^$;$s!#(B
$B;d<+?H$,(BSCSI$B$rA*Br$9$kM}M3$O$=$N!V?.Mj@-!W$K$h$k$H$3$m$,Bg$-$$$N$G$9$,!"6a:"(B
$B$G$O;v>p$,JQ$o$C$F$-$F$$$k$N$G$7$g$&$+!)(B

# $B$H$O8@$C$F$b!"B.$$$K1[$7$?$3$H$O$J$$$N$G$9$,!#!#!#(B




