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To: FreeBSD-users-jp@jp.FreeBSD.org
In-Reply-To: Your message of "Thu, 28 Nov 2002 16:19:01 +0900"
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Date: Sun, 29 Dec 2002 20:55:37 +0900
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Subject: [FreeBSD-users-jp 72738] Re: RAID5 performance(software,hardware)
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$B8E$$OCBj$X$N%U%)%m!<$G$9$,!"(BPowerEdge600SC RAID $B9=@.$NJ}$?$A$N(B
$BB.EY%F%9%H(B(?)$B$NJs9p$,$J$+$C$?$N$G!"$d$C$HG/Kv$K$J$C$FG<F~$5$l$?(B
$B%^%7%s$G;n$7$F$_$^$7$?!#(B
$B0J2<$N(B OS $B$OCG$j$,L5$$8B$jA4$F(B FreeBSD 4.7-RELEASE $B$G$9!#(B

  Dell PowerEdge600SC
    CPU Pentium4 1.8GHz, Memory 512MB, IDE RAID5 80DB x 4$BBf(B

$B%G%#%9%/$O8e=R$NHs(B RAID $B%^%7%s$HF1$8$@$H;W$o$l$^$9$N$G!"(B
ad0: 76293MB <WDC WD800BB-18CAA0> [155009/16/63] at ata0-master BIOSDMA
$B$3$N%G%#%9%/$G$7$g$&!#(B

$B0JA0!"@n8}$5$s$,;n$7$?$3$H$HF1$8;v$r$d$C$?$i!"(B

  hamp# cstream -o /pub1/test/null.bin -i - -b 2m -B 8m -n 1g -v 3
  #0 finishing on condition 5
  1073741824 B 1.0 GB 227.1 s (3:47 min) 4729065 B/s 4.51 MB/s
  Since end of first transfer: 4733274 B/s 4.51 MB/s
  hamp# 

$B$H$J$j$^$7$?!#(B
[FreeBSD-users-jp 72372] $B$G;d$,;29M$H$7$F=P$7$?!"(BDell PoweEdge500SC $B$N(B
IDE RAID5 $B9=@.(B + RedHat 7.2 $B$N%^%7%s(B(Peuntium III 1.2GHz, Memory 512MB,
$B7A<0ITL@(B HDD 40GB x 3$BBf(B)$B$N7k2L$O(B

  root@irving root]# cstream -o /usr/test/null.bin -i - -b 2m -B 8m -n 1g -v 3
  #0 finishing on condition 5
  1073741824 B 1.0 GB 100.98 s 10633213 B/s 10.14 MB/s
  Since end of first transfer: 10723684 B/s 10.23 MB/s
  [root@irving root]#

$B$G$7$?$N$G!"$3$l$HHf$Y$k$H$@$$$V@-G=$,0-$$$h$&$G$9!#(B 
Linux $BMQ$N%I%i%$%P$NJ}$,@-G=$,NI$$$N$G$7$g$&$+!)(B (^^;

$BJL%9%l%C%I$G=q$$$F$$$k!"Hs(B RAID $B9=@.$G(B Primary $B$N(B Slave $B$K(B HDD $B$r$D$J$0$H(B
$B%@%a$K$J$k%^%7%s$G$b;n$7$F$_$^$7$?!#(B

Primary $B$N(B Master $B$K$D$J$,$C$F$$$k%I%i%$%V$KBP$7$F<B9T$9$k$H$3$&$J$j$^$9!#(B

  bash-2.05b#  cstream -o /pub1/test/null.bin -i - -b 2m -B 8m -n 1g -v 3
  #0 finishing on condition 5
  1073741824 B 1.0 GB 33.87 s 31704875 B/s 30.24 MB/s
  Since end of first transfer: 32038897 B/s 30.55 MB/s

$B$^$?!"(BSecondary $B$N(B Slave $B$K$D$J$,$C$F$$$k%I%i%$%V$KBP$7$F<B9T$7$?$i(B
$B$3$&$J$j$^$7$?!#(B

  bash-2.05b# mkdir /pub2/test
  bash-2.05b#  cstream -o /pub2/test/null.bin -i - -b 2m -B 8m -n 1g -v 3
  #0 finishing on condition 5
  1073741824 B 1.0 GB 34.04 s 31544916 B/s 30.08 MB/s
  Since end of first transfer: 31879955 B/s 30.40 MB/s
  bash-2.05b# 

$B$D$^$j!"N><T$GM-0U$J:9$OL5$$!)(B [FreeBSD-users-jp 72737] $B$K=q$$$?$h$&$K(B
$B2?$+$N@)Ls$G(B BIOS $B@_Dj$G$N(B UDMA $B;XDj$O(B ATA33 $B$K$J$C$F$$$k$N$G$9$,!"(B
$B$3$N;XDj$,N'B.MW0x$K$J$C$F$$$k$N$G$7$g$&$+!)(B
$B$@$H$7$?$i$$$d$@$J$!!D(B

$B$7$+$7!"(BRAID5 $B9=@.$N%^%7%s$O%$%s%9%H!<%k$,Hs(B RAID $B9=@.$N%^%7%s$KBP$7$F(B
$B$+$J$jCY$+$C$?$N$G$9$,!">e5-$N7k2L$r8+$l$PG<F@$,$$$-$^$9!#(B

$B$3$N7k2L$@$1$+$i$G$O2?$H$b$$$($^$;$s$,!"(BCERC $B$r;H$C$?(B IDE RIAD5 $B$O(B
FreeBSD $B$G$O$+$J$jCY$$$H$$$&;v$K$J$j$^$9$M!#(B

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
($B3t(B) $B%;%s%H%i%k>pJs%;%s%?!<(B
                             $B8eF#OB@/(B    kgotoh@cic-kk.co.jp
