From owner-FreeBSD-users-jp@jp.FreeBSD.org Fri Nov 29 12:23:24 2002
Received: (from daemon@localhost)
	by castle.jp.FreeBSD.org (8.11.6+3.4W/8.11.3) id gAT3NOc03232;
	Fri, 29 Nov 2002 12:23:24 +0900 (JST)
	(envelope-from owner-FreeBSD-users-jp@jp.FreeBSD.org)
Received: from athena.ginganet.org (postfix@tk0008-202x210x243x26.ap-TK.usen.ad.jp [202.210.243.26])
	by castle.jp.FreeBSD.org (8.11.6+3.4W/8.11.3) with ESMTP/inet id gAT3NJ203223
	for <FreeBSD-users-jp@jp.FreeBSD.org>; Fri, 29 Nov 2002 12:23:23 +0900 (JST)
	(envelope-from ginga@ginganet.org)
Received: by athena.ginganet.org (Postfix, from userid 5003)
	id 7E2023E2D; Fri, 29 Nov 2002 12:23:19 +0900 (JST)
From: Kawaguti Ginga <ginga-freebsd@ginganet.org>
To: FreeBSD-users-jp@jp.FreeBSD.org
Message-ID: <20021129032319.GA88868%ginga-freebsd@ginganet.org>
References: <20021128161901R.kgotoh@cic-kk.co.jp> <20021128221458E.kgotoh@cic-kk.co.jp> <3DE6371B.1070308@honsha.meidensha.co.jp> <20021128161901R.kgotoh@cic-kk.co.jp> <20021128221458E.kgotoh@cic-kk.co.jp> <20021127024952.GC75858%ginga-freebsd@ginganet.org> <20021128161901R.kgotoh@cic-kk.co.jp> <20021127024952.GC75858%ginga-freebsd@ginganet.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-2022-jp
Content-Disposition: inline
In-Reply-To: <3DE6371B.1070308@honsha.meidensha.co.jp> <20021128221458E.kgotoh@cic-kk.co.jp> <20021128161901R.kgotoh@cic-kk.co.jp> <20021127024952.GC75858%ginga-freebsd@ginganet.org>
User-Agent: Mutt/1.5.1i-ja.1
Reply-To: FreeBSD-users-jp@jp.FreeBSD.org
Precedence: list
Date: Fri, 29 Nov 2002 12:23:19 +0900
X-Sequence: FreeBSD-users-jp 72387
Subject: [FreeBSD-users-jp 72387] Re: RAID5 performance(software,hardware)
Errors-To: owner-FreeBSD-users-jp@jp.FreeBSD.org
Sender: owner-FreeBSD-users-jp@jp.FreeBSD.org
X-Originator: ginga-freebsd@ginganet.org
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+021111

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

RAID-5 $B$K5a$a$k$Y$-$G$J$$;v9`$H$O;W$$$D$D$b!$0z$-B3$-(B...

In Wed, Nov 27, 2002 at 11:49:52AM +0900,
Kawaguti Ginga <ginga-freebsd@ginganet.org> wrote:
> $B0lJ}$G(B athlon $B$J$I$r%V%s2s$;$k(B software raid
> (vinum $B$J$s$+$O(B RAID5 $B2DG=$G$9$h$M(B)$B$@$H$I$s$J@-G=$+!$(B
> $B4J0W%Y%s%A%^!<%/$G$b$J$s$G$b$4B8$8$NJ}$O$$$i$C$7$c$$$^$9$G$7$g$&$+(B?

$B$=$N8e!$0lEY!$%O!<%IE*$K$O(B MegaRAID i4 $B$K(B 1$BBf(B/ch $B$G(B 4$BBf(B
$B$D$J$$$@$^$^$G$9$,!$(BRAID5$B$r$[$I$$$FC1$J$k(B IDE card $B07$$$G(B
vinum $B$G(B amrd{0..3} $B$r(B RAID5 $B$K$7$F$_$^$7$?(B(athlon 700MHz)$B!%(B
$B$GF1MM$N(B 1GB $BO"B3=q$-9~$_%F%9%H$r9T$C$?$i(B
5,6MB/s $BDxEY$G$7$?!%(B(MegaRAID i4 $B$N$6$C$H(B2$BG\<e(B)
$B0c$&$H8@$($P0c$&$1$I!$=jA'$3$NDxEY$J$s$G$9$M(B...
3ware $B$K$OE($o$J$$(B...

In Thu, Nov 28, 2002 at 04:19:01PM +0900,
Kazumasa Gotoh <kgotoh@cic-kk.co.jp> wrote:
> Dell PoweEdge500SC $B$N(B IDE RAID5 $B9=@.(B + RedHat 7.2 $B$N%^%7%s$G(B
> $B%F%9%H$7$F$_$^$7$?!#(BRedHat $B$N!!(Bdmesg $B$G$O$3$s$JIw$KG'<1$5$l$^$9!#(B

$B$"$j$,$H$&$4$6$$$^$9!%(B

>   megaraid: v1.17a (Release Date: Fri Jul 13 18:44:01 EDT 2001)
>   megaraid: found 0x101e:0x1960:idx 0:bus 0:slot 10:func 0
>   scsi2 : Found a MegaRAID controller at 0xe0847000, IRQ: 30
>   scsi2 : Enabling 64 bit support
>   megaraid: [6.61:1.01] detected 1 logical drives

$B?7$7$$(B firmware $B=P$F$$$^$9$M!%(B
(CERC $B$H(B MegaRAID i4 $B$O$I$3$^$GF10l$J$s$G$7$g$&$M(B...
 i960RS 100MHz + 16MB cache $B$H$+$OF1$8$G$9$N$G!$(B
 $BL>>h$j$,(B "CERC" $B$H$J$C$F$$$?$j$9$k$@$1$N0c$$$J$iNI$$$N$G$9$,!$(B
 Dell $B$,G[$C$F$$$k(B firmware $B$J$I$N%P!<%8%g%s$N(B naming convention $B$,(B
 LSI Logic $B$N$b$N$O(B "I661" => "M661" $B$G@hF,$NJ8;z$,99?7$5$l$F$$$/$N$K(B
 $BBP$7!$(BDell $B$N$b$N$O(B 6.61 => 6.62 $B$HIaDL$KJQ$o$k(B...
 BIOS $BItJ,$b(B 1.01 $B$H(B 1.03 $B$HHyL/$K0c$C$F$$$k$7(B...
 ($B$A$J$_$K99?7F|IU$O(B 2002/10 $B$GN><T$H$b6a$$(B))

> $B$3$N%^%7%s$K(B cstream $B$r%$%s%9%H!<%k$7$F@n8}$5$s$HF1$8;v$r$7$F$_$^$7$?!#(B

RAID5 $B$N9=@.%Q%i%a!<%?(B(block size, read/write cache $B@_Dj$J$I(B)$B$O(B
$BJ,$+$j$^$9$G$7$g$&$+(B?

> $B%^%7%s%9%Z%C%/$O(B Pentium III 1.2GHz, Memory 512MB $B$G$9!#(B
> HDD $B$O(B 40GB x 3 $B$G$9$,!"7?<0$O$o$+$j$^$;$s!#(B(^^;

2$BG/A0$/$i$$$N@=IJ$G$7$g$&$+(B? (dmesg |grep ad $B$,$"$l$P(B...)

$B$A$J$_$K;d$,%F%9%H$7$?(B IBM 120GXP(AVVA) $B$OCzEY(B1$BG/A0$N(B
40GB/platter 7200rpm $B$N$b$N$G$9!%(B

> $B:G=i$N%a%$%k$K=q$$$?$h$&$K!"(BPowerEdge600SC $B$N(B IDE RAID5 $B9=@.%^%7%s$r(B
> $BF3F~$7$F(B FreeBSD 4.7 $B$G;H$*$&$+$H9M$($F$$$k$N$G$9$,!"@n8}$5$s$NEj9F$r(B
> $B8+$F!"$"$^$jCY$$$H$$$d$@$J!A$H;W$C$F$?$N$G$9$,!">/$70B?4$7$^$7$?!#(B

$B$$$d!$;d$b<+J,$N@_Dj$+$J$K$+$,0-$$$s$8$c$J$$$+$H$$$&(B
$B5$$,$7$FA02s$NEj9F$K$J$C$?$N$G$9$,!$(B
> http://vmag.vwalker.com/series/testlab/art.asp?newsid=2033
$B$r8+$F$b(B IDE 7200rpm x4 $B$G%F%9%H$7$F(B sequential write $B$O(B
$B6%9g5!<o$HHf$Y$F%@%s%H%D$KCY$$(B(!)$B@=IJ$J$N$G$=$&$$$&$b$N$J$N$+$J!$(B
$B$H;W$C$F$$$^$9!%(B

# $B",$A$J$_$K(B 3ware Escalade $B$N(B 7x50 $B$OB.$$$G$9$M!%(B
# $B2q<R$G(B 7450 $B$G(B RAID-0 $B$7$F!$(B7410 $B$G(B RAID-5 $B1?MQ$7$F(B
# $B$7$^$C$F$$$k;d$OBg%P%+%b%N$G$9$M(B($B;~4V$,$H$l$?$i8r49$7$A$c$*(B)

$BJL%a!<%k$K$F(B
> # 6$BBf9=@.$H(B 3$BBf9=@.$@$H!"(B6$BBf9=@.$NJ}$,B.EYE*$K$OITMx$K$J$k$N$+$J!)(B
$B$H=q$+$l$F$$$^$9$,!$(BRAID5 $B$N>l9g$O(B read $B$OBf?t$,A}$($l$P(B
striping $B$HF1MM$K%Q%U%)!<%^%s%9$,8~>e$9$k$O$:$G$9$,!$(Bwrite $B$O(B
  * $B$*L\Ev$F$N(B disk $B$K=q$/(B
  * $BA4It(B-2$B$N(B disk $B$NBP1~$9$k(B block $B$rFI$`(B 
  * parity $B$r7W;;(B
  * parity $B$r=q$-9~$`(B
$B$H$$$&:n6H$,$"$k$O$:$J$N$G!$Bf?t$,A}$($k$[$ICY$/$J$k!$(B
$B$H$$$&$3$H$G$9$+$M(B... ($B2<<j$9$k$H(B1$B$D$E$DFI$s$G$$$?$j$7$F(B...)

> # $B$G$b!"(BFreeBSD $B$G;n$9$HCY$$$H$+8@$&%*%A$@$C$?$i%d%@$J!#(B(^^;

$B$=$l$O$?$V$s(B(DOS/V magazine $B$HHf$Y$F;w$F$$$k$N$G(B)$BBg>fIW$8$c$J$$$G$7$g$&$+!%(B

> $B$"$^$jB.$$$H$b8@$($b$7$J$$$s$G$7$g$&$1$I!"$@$$$?$$$O$3$s$J$b$N$J$N(B
> $B$G$7$g$&$+!)(B

$B;d$bCN$j$?$$$G$9(B...

> $B;n$7$K!"(BCeleron 1.2GHz, 512MB, HDD $B$O(B dmesg $B$K$h$l$P(B IC35L080AVVA07-0
> $B$H=P$F$/$k(B FreeBSD 4.7-RELEASE $B%^%7%s$G$bF1$8;v$r$d$C$F$_$^$7$?!#(B
> $B$3$l$O(B RAID $B$G$O$J$/IaDL$N(B IDE $B9=@.$G(B IDE HDD $B$O(B ATA100 $B$GF0$$$F$$$^$9!#(B
$BN,(B
>   1073741824 B 1.0 GB 24.30 s 44190811 B/s 42.14 MB/s
$BN,(B
> $B$3$s$J$b$N$J$N$+$J!)(B

$B$3$A$i$O$3$s$J$b$N$G$7$g$&!%(B
($B$3$A$i$O;d$N;HMQ$7$F$$$k(B HDD $B$HF1$8(B AVVA $B$G$9$M(B)

# HDD $BC1BN$J$i(B cache $B$b>/$J$$$N$G(B 1GB $B$b=q$-9~$^$J$/$F$b(B
# $B$6$C$/$j8+$k$K$O==J,$G$9$M(B :-)

In Thu, Nov 28, 2002 at 10:14:58PM +0900,
Kazumasa Gotoh <kgotoh@cic-kk.co.jp> wrote:
> RAID $B$G$O$J$$$G$9$,!"(BPentium III 500MHz, Memory 384MB, FreeBSD 3.3R
> $B$J%^%7%s$G(B SCSI $B%+!<%I$O(B Tekram DC-390F (Ultra Wide SCSI)$B$G!"(BHDD
> $B$O(B IBM $B$N!D(B $B2?$H8@$C$?$+(B (^^;; Ultra Wide SCSI $BMQ$N(B 9GB $B%?%$%W$G$N(B
$BN,(B
>   1073741824 B 1.0 GB 146.12 s 7348461 B/s 7.01 MB/s
$BN,(B
> $BJ,$+$C$F$O$$$^$7$?$,!"(BUltra Wide SCSI $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

interface $B$h$j$b2?(BGB platter, $B2?(Brpm, cache $BMFNL!$0L$G7h$^$k(B
$B?t;z$N$h$&$J5$$,$7$^$9(B($B0l8@$GI=8=$9$k$H(B "$B$$$D:"$N(B" $B$K$J$k(B)$B!%(B
"9GB $B$,Bg$-$+$C$?(B" $B;~Be$N(B disk $B$G$"$k$J$i!$N)GI$J(B
$B@.@S$G$O$J$$$+$H;W$$$^$9!%(B

<$BAG?M$N$?$o$4$H(B>

$B$3$3?tG/$N0lHL$K=P2s$C$F$$$k(B SCSI $B@=IJ72$O(B
$B9b2sE>$G!$(Bseek $B$,$H$K$+$/B.$/$J$C$F$$$k(B(IDE $B7O$NG\0J>e(B?)$B$,!$(B
sequential I/O $B$G$O(B IDE $B@=IJ72$,5-O?L)EY$K$b$N$r8@$o$;$F(B
$B2T$$$G$/$k$N$G$3$A$i$N:9$O>/$J$/$J$C$F$-$F$$$k!$$H$$$&0u>]$G$9!%(B

# $B@hF|Gc$C$?(B "$B0lHV0B$$(B SCSI"(10000rpm) $B$G$9$i(B avg.seek 3.9ms $B$G$9$+$i(B...

$B$?$V$s!$%5!<%P!<MQES$G(B DB $B%"%/%;%9$H$+$,=EMW!$$H$$$&(B
$B$h$&$JGX7J$,$"$k$s$8$c$J$$$+$H;W$$$^$9$,!%(B

</$BAG?M$N$?$o$4$H(B>


In Fri, Nov 29, 2002 at 12:32:43AM +0900,
Katsunori Obata <obata-k@honsha.meidensha.co.jp> wrote:
> $B#S#C#S#I$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

$B%Q%j%F%#%A%'%C%/$NOC(B?

$B%Q%j%F%#%A%'%C%/$GB.EY$,CY$/$J$k$H$b;W$($J$$$G$9$,(B...
(RAID5 $B$N%Q%j%F%#$H$OA4A30c$&OC$J$N$G(B)

CRC $BN`$N$d$D$O(B on/off $B$b$X$C$?$/$l$b$J$$$G$9$7!%(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

$B%-%c%C%7%e$N@_Dj$NOC(B?

RAID card $B$O$H$b$+$/!$(BSCSI HostAdapter $BN`$G$O$"$^$j8+3]$1$^$;$s$,!$(B
HDD $BB&$N(B cache $B$r$I$&;H$&$+$NOC$G$"$l$P!$(BIDE/SCSI $B6&$K$"$j$^$9!%(B
($B$A$g$C$HA0$^$G$O!$(BSCSI $B5!<o$NJ}$,0lHL$KB?$a$N(B cache $B$r@Q$s$G$$$k(B
$B798~$,$"$C$?$N$G$9$,!$(BWD1200JB(8MB cache $B$N(B IDE)$B0JMh!$(B
$B$=$&$$$&$3$H$b$J$/$J$C$?5$$,$7$^$9$M(B)
-- 
       $B"J"J(B
Zzz.. (- - )$B"^"^"=!A(B           $B@n8}(B $B6d2O(B
      ##############   ginga-freebsd@ginganet.org
