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From: Kawaguti Ginga <ginga-freebsd@ginganet.org>
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References: <20021128161901R.kgotoh@cic-kk.co.jp> <20021128221458E.kgotoh@cic-kk.co.jp> <3DE6371B.1070308@honsha.meidensha.co.jp> <20021127024952.GC75858%ginga-freebsd@ginganet.org> <20021129032319.GA88868%ginga-freebsd@ginganet.org> <200211290943.gAT9hpAg009529@fcomp.fuchu.toshiba.co.jp> <20021208145638.GD88868%ginga-freebsd@ginganet.org> <867kekscrx.wl@bougainvillea.FromTo.Cc>
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Date: Mon, 9 Dec 2002 16:47:39 +0900
X-Sequence: FreeBSD-users-jp 72507
Subject: [FreeBSD-users-jp 72507] Re: RAID5 performance(software,hardware)
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X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+021208

$B@n8}$G$9(B

In Mon, Dec 09, 2002 at 01:20:34AM +0900,
Tatsumi Hosokawa <hosokawa@FromTo.Cc> wrote:
> > $B$=$l$K$7$F$b!$$J$s$G<j85$N(B MegaRAID i4 $B$O$3$s$J$KCY$$$s$@$m$&(B...
> > $B$^!$(Bsequential write $B<+BN$N@-G=$J$s$F$I$&$G$b$$$$$s$G$9$,!$(B
> > newfs $B$b?t;~4V$8$c:Q$^$J$$$/$i$$$+$+$k$7!$A4BN$K(B
> > $BCY$$$N$O$?$7$+$J$s$G$9$h$M!%(B
> 
> MegaRAID i4 $B$C$F!"(BXOR $B$,%O!<%I%&%'%"$8$c$J$/$F%7%9%F%`(B CPU $B$r;H$&$+$i!"(B
> RAID5 $B$,CY$$!"$H$$$&$N$G$O$"$j$^$;$s$G$7$?$C$1!)(B

$B0l1~!$%O!<%I%&%'%"<+BN$O(B "$B%O!<%I%&%'%"(B RAID" $B7OE}$N@=IJ$G(B
i960 100MHz + 16MB cache $B$r;}$C$F$$$^$9!%(B
http://www.lsilogic.com/products/stor_prod/raid/i4.html

FreeBSD $B$N%I%i%$%P$,$=$l$r;H$C$F$$$k$N$+$O3NG'$G$-$^$;$s$,!$(B
  * $B%=%U%H%&%'%"(B RAID $B$G$"$l$PF1$8%O!<%I%&%'%"$G(B vinum $B$K$h$k(B
    RAID5 $B$O%7!<%1%s%7%c%k=q$-9~$_$G(B 5,6MB/s $B=P$F$$$k$,!$(B
    $B$=$l$h$j3JCJ$KCY$$(B($B$N$G!$$?$V$s(B software raid $B$G$O$J$$(B)
  * SCSI $B$N(B MegaRAID* $BN`$H(B(OS $B$+$i$O(B)$B$[$\F1Ey$K8+$($k(B($B$i$7$$(B)
$B$N$G!$$?$V$s(B hardware RAID $B$H$7$F5!G=$7$F$$$k$s$8$c$J$$$+$H;W$$$^$9!%(B

$B$^$"!$0B$$@=IJ$@$7!$;(;o$G$N%Y%s%A%^!<%/7k2L$H;w$?@-G=$O=P$F$$$k$7!$(B
$B;H$$>!<j$NLL$O0-$/$J$5$=$&$J$N$GJL$K8=>u$G$b9=$o$J$$$N$G$9$,!$(B
[FreeBSD-users-jp 72372] $B$N8eF#$5$s$H$N:9$,(B
(RAID $B$N%O!<%I%&%'%"$,F1Ey$G$"$k$J$i(B)$B$A$g$C$HIT2D2r!$$H$$$&(B
$B$N$,5$$K$J$C$F$$$^$9(B...
-- 
       $B"J"J(B
Zzz.. (- - )$B"^"^"=!A(B           $B@n8}(B $B6d2O(B
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