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<TITLE>Linux DPT Hardware RAID HOWTO : $B;H$$$+$?(B</TITLE>
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<H2><A NAME="s5">5.</A> <A HREF="DPT-Hardware-RAID.html#toc5">$B;H$$$+$?(B</A></H2>
<H2><A NAME="ss5.1">5.1</A> <A HREF="DPT-Hardware-RAID.html#toc5.1">fdisk, mke2fs, mount, etc.</A>
</H2>
<P> $B$3$l$G(B RAID $B$rIaDL$N%G%#%9%/$HF1$8$h$&$K07$&$3$H$,$G$-$^$9!#<!$K(B
$B$^$:$d$i$J$1$l$P$J$i$J$$$3$H$O!"%Q!<%F%#%7%g%s$r$-$k$3$H$G$9(B(fdisk $B$r(B
$B;H$$$^$9(B)$B!#(Bext2 $B%U%!%$%k%7%9%F%`$r@_Dj$9$kI,MW$,$"$j$^$9!#<!$N%3%^%s%I(B
$B$rAv$i$;$F$/$@$5$$!#(B</P>
<P>
<BLOCKQUOTE><CODE>
<PRE>
% mkfs -t ext2 /dev/sdxN
</PRE>
</CODE></BLOCKQUOTE>
</P>
<P>/dev/sdxN $B$O(B SCSI $B$N%Q!<%F%#%7%g%s$NL>A0$G$9!#$3$l$G%Q!<%F%#%7%g%s$r(B
$B%^%&%s%H$7$F!"B>$N%G%#%9%/$HF1$8$h$&$K;H$($k$h$&$K$J$j$^$9(B
(/etc/fstab $B$K%(%s%H%j$rDI2C$7$^$7$g$&(B)$B!#(B</P>
<H2><A NAME="ss5.2">5.2</A> <A HREF="DPT-Hardware-RAID.html#toc5.2">$B%[%C%H%9%o%C%W(B</A>
</H2>
<P>$B$O$8$a$K2f!9$O!"%I%i%$%V$N(B 1 $B$D$r<h$j=P$7$F!"$=$l$r$^$?La$9$H$$$&!"(B
$B%[%C%H%9%o%C%W$N%F%9%H$r!"(BDPT $B@=(B $B$N(B $BAH$_9~$_%?%$%W$N(B RAID $B$G;n$7$F(B
$B$_$^$7$?(B($B$3$N(B RAID $B$O9b2A$G$9(B)$B!#$9$k$H%I%i%$%V$r40A4$KH4$/A0$K!"%G%#%9%/$N(B
$B0l$D$,8N>c$7$?>uBV$K$J$j$^$7$?(B($B$3$N;~!"7Y9p2;$G5$$,68$$$=$&$K$J$j$^$7$?(B)$B!#(B
$B%G%#%9%/$,8N>c$7$?$K$b$+$+$o$i$:!"(BRAID $B$NA4$F$N%G!<%?$K%"%/%;%9$G$-$^$7$?!#(B</P>
<P>$B2u$l$?%G%#%9%/$r8r49$9$k$U$j$r$7$F!"F1$8%I%i%$%V$rLa$7$F$_$^$7$?!#(B
$B%I%i%$%V$O%j%S%k%I$5$l$F!"A4$F(B OK $B$N$h$&$G$7$?!#%G%#%9%/$,Kd$^$C$F!"(B
$B%j%S%k%I$7$F$$$k4V!"A4$F$N%G!<%?$K%"%/%;%9$G$-$^$7$?!#$?$@$7$3$3$GB>$N(B
$B%G%#%9%/$,8N>c$7$F$$$?$i!"$H$s$G$b$J$$;vBV$K$J$C$F$$$?!"$H$$$&$3$H$r$*$\$($F(B
$B$*$$$F$/$@$5$$!#(B</P>
<H2><A NAME="ss5.3">5.3</A> <A HREF="DPT-Hardware-RAID.html#toc5.3">$B%Q%U%)!<%^%s%9(B</A>
</H2>
<P> $B%Y%s%A%^!<%/%=%U%H$N(B Bonnie $B$G7WB,$7$?7k2L$r<!$K$"$2$^$9!#5!4o$O!"(B
2144 UW $B$K(B 9x3=17 GB $B$N%G%#%9%/$r(B RAID 5 $B$G9=@.$7!"(BEATA DMA $B%I%i%$%P$r(B
$B;HMQ$7$F$$$^$9!#(BRAID $BMQ$N%^%7%s$O!"%G%e%"%k$N(B Pentium Pro $B$,Ek:\$5$l!"(B
Linux 2.0.33 $B$,$N$C$F$$$^$9!#(B
$BHf3S$H$7$F!"F10l%^%7%s$N(B IDE $B%I%i%$%V$N(B Bonnie $B$N7k2L$b$N$;$F$*$-$^$9!#(B</P>
<P>
<BLOCKQUOTE><CODE>
<PRE>
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
RAID 100 9210 96.8 1613 5.9 717 5.8 3797 36.1 90931 96.8 4648.2 159.2
IDE 100 3277 32.0 6325 23.5 2627 18.3 4818 44.8 59697 88.0 575.9 16.3
</PRE>
</CODE></BLOCKQUOTE>
</P>
<P>$B>e5-$N7WB,7k2L$K0[O@$r$b$?$l$kJ}$b$$$^$9(B($B4V0c$$$J$/$3$N7k2L$J$N$G$9$,(B...$B!#(B
$B$b$&2f!9$N%^%7%s$O<B2TF/>uBV$K$"$k$N$G!"$b$&0lEY7WB,$9$k$3$H$,$G$-$^$;$s(B)$B!#(B
$BM}M3$O!"%F%9%H$K;HMQ$7$?%U%!%$%k$NBg$-$5$,>.$5$$$?$a!"%G%#%9%/!&%-%c%C%7%e(B
$B$KF~$C$F$7$^$C$?$+$b$7$l$J$$!"$H$$$&$3$H$G$9(B($B$3$&$J$k$H!"IaDL$G$O$"$j$($J$$!"(B
$BAG@2$i$7$$%Q%U%)!<%^%s%9$,$G$F$7$^$$$^$9(B)$B!#<!$O(B 3344 UW $B%3%s%H%m!<%i$rMQ$$$?(B
$B7k2L$G$9!#(B</P>
<P>
<BLOCKQUOTE><CODE>
<PRE>
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
1000 1714 17.2 1689 6.0 1200 5.7 5263 40.2 7023 12.1 51.3 2.2
</PRE>
</CODE></BLOCKQUOTE>
</P>
<P>$B$3$s$I$O!"%[%9%HFbB"%?%$%W$N(B RAID $B%7%9%F%`$N7WB,7k2L$G$9!#(B</P>
<P>
<BLOCKQUOTE><CODE>
<PRE>
-------Sequential Output-------- ---Sequential Input-- --Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
64 7465 100.0 70287 98.7 37012 97.7 8074 99.2 *****100.3 ***** 196.6
128 7289 99.3 67595 98.5 35294 98.6 7792 97.6 *****100.3 ***** 195.8
256 7222 98.8 44844 69.6 16096 51.8 5787 72.7 ***** 99.8 ***** 85.2
512 7138 98.4 13871 23.2 7888 29.3 7183 89.3 16488 27.2 1585. 11.5
1024 6908 95.8 12270 21.5 7161 25.4 7373 90.4 16527 28.2 123.8 1.8
2047 6081 84.1 12664 22.6 7191 25.6 7289 89.5 16573 28.5 75.0 1.2
</PRE>
</CODE></BLOCKQUOTE>
</P>
<P>***** $B$NItJ,$O7k2LI=<($NOH$r1[$($F$7$^$C$?$b$N$G$9(B(> 100 MB/sec,
> 10000 seeks/sec) </P>
<P>$B%[%9%H(B: $B%G%e%"%k(B PII 400 MHz, 2 x U2W, 512 MB RAM, $BFbB"%G%#%9%/$J$7(B
RAID: IFT 3102 UA 128 MB $B%-%c%C%7%e(B, RAID-5, 6 x 9 GB
OS: SuSE Linux 6.0($B%+!<%M%k(B 2.2.3)</P>
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