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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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 <TITLE>Root RAID HOWTO cookbook: RAID $B%U%!%$%k%7%9%F%`$N9=C[(B</TITLE>
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<HR>
<H2><A NAME="s6">6.</A> <A HREF="Root-RAID-HOWTO.html#toc6">RAID $B%U%!%$%k%7%9%F%`$N9=C[(B</A></H2>

<P>$B$3$N5-=R$O!$%7%9%F%`;EMM$G=R$Y$?I.<T$N(B RAID1 $B%7%9%F%`$K4X$7$F$N$b$N$G(B
$B$9!%$"$J$?$N%7%9%F%`$,0[$J$k(B RAID $B$N%"!<%-%F%/%A%c$r:NMQ$7$F$$$k>l9g$O!$(B
$BE,59=$@5$7$F$/$@$5$$!%>\$7$/$O(B raidtools-0.42 $B$KIUB0$7$F$$$k%*%s%i%$%s(B
$B%^%K%e%"%k$+!$(BQuickStart.RAID $B$r;2>H$7$F$/$@$5$$!%(B</P>
<H2><A NAME="raid5configuration"></A> <A NAME="ss6.1">6.1</A> <A HREF="Root-RAID-HOWTO.html#toc6.1">/etc/raid5.conf </A>
</H2>

<P>
<PRE>
        # raid-5 configuration
        raiddev                 /dev/md0
        raid-level              5
        nr-raid-disks           4
        chunk-size              32

        # Parity placement algorithm
        parity-algorithm        left-symmetric

        # Spare disks for hot reconstruction
        #nr-spare-disks         0

        device                  /dev/sda3
        raid-disk               0

        device                  /dev/sdb3
        raid-disk               1

        device                  /dev/sdc3
        raid-disk               2

        device                  /dev/sdd3
        raid-disk               3
</PRE>
</P>
<H2><A NAME="raid1configuration"></A> <A NAME="ss6.2">6.2</A> <A HREF="Root-RAID-HOWTO.html#toc6.2">/etc/raid1.conf </A>
</H2>

<P>
<PRE>
        # raid-1 configuration
        raiddev                 /dev/md0
        raid-level              1
        nr-raid-disks           2
        nr-spare-disks          0

        device                  /dev/hda4
        raid-disk               0

        device                  /dev/hdc4
        raid-disk               1
</PRE>
</P>
<H2><A NAME="ss6.3">6.3</A> <A HREF="Root-RAID-HOWTO.html#toc6.3">$B;E;vMQ(B RAID $B%U%!%$%k%7%9%F%`$r9=C[$9$k$?$a$N6qBNE*<j=g(B</A>
</H2>

<P>$BI.<T$N(B RAID5 $B%7%9%F%`$G$O!$0J2<$N$b$N$r%$%s%9%H!<%k$7$F$$$^$9!%(B
<PRE>
        Slackware-3.4           $B$I$N%G%#%9%H%j%S%e!<%7%g%s$G$bBg>fIW$G$7$g$&(B
        linuxthreads-0.71
        raidtools-0.42
        linux-2.0.33 $B$K(B raid145 $B%Q%C%A$H(B Gadi $B;a$N%Q%C%A$rEv$F$?$b$N(B
</PRE>
</P>

<P>RAID $B%G%P%$%9$r:n@.!$%U%)!<%^%C%H$7$^$9!%(B
<PRE>
        mkraid /etc/raid5.conf
        mdcreate raid5 /dev/md0 /dev/sda3 /dev/sdb3 /dev/sdc3 /dev/sdd3
        mdadd -ar
        mke2fs /dev/md0
        mkdir /md
        mount -t ext2 /dev/md0 /md
</PRE>

reboot $B$,;H$&;2>H%U%!%$%k$r:n@.$7$^$9!%$3$l$OFI<T$N%7%9%F%`$G$O0[$J$k(B
$B$+$b$7$l$^$;$s!%(B
<PRE>
        cat /proc/mdstat | grep md0 > /dosa/raidboot/raidgood.ref
        cat /proc/mdstat | grep md0 > /dosb/raidboot/raidgood.ref
</PRE>

Slackware-3.4 $B$^$?$OJL$N%Q%C%1!<%8$rMQ$$$F!$(BOS $B$r%$%s%9%H!<%k$7$^$9!%(B
<PRE>
        setup
</PRE>

$B%$%s%9%H!<%k@h$K$O(B `/md' $B$r!$%$%s%9%H!<%k85$K$OFI<T$,IaCJ;H$C$F$$$k$b(B
$B$N$r;XDj$7$^$9!%%+!<%M%k$r=|$/I,MW$J%G%#%9%/%;%C%H$rA*Br!$%$%s%9%H!<%k(B
$B$7$^$9!%(B(Slackware $B$N>l9g(B)$B%7%9%F%`@_Dj(B(Configure)$B$r<B9T$7$^$9$,!$(Blilo 
$B$H%+!<%M%k$N5/F0$N9`L\$OHt$P$7$^$9!%:G8e$K(B setup $B%3%^%s%I$r=*N;$7$^$9!%(B</P>
<P>`pthreads' $B$r%$%s%9%H!<%k$7$^$9!%(B
<PRE>
        cd /usr/src/linuxthreads-0.71
</PRE>

Makefile $B$rJT=8$7!$4D6-JQ?t$r;XDj$7$^$9!%(B
<PRE>
        BUILDIR=/md

        make
        make install
</PRE>

`raidtools' $B$r%$%s%9%H!<%k$7$^$9!%(B
<PRE>
        cd /usr/src/raidtools-0.42
        configure --sbindir=/md/sbin --prefix=/md/usr
</PRE>

raidtools $B$N(B `make install' $B$GH/@8$9$k%(%i!<$r=$@5$7$^$9!%(B
<PRE>
        cd /md/sbin
        rm mdrun
        rm mdstop
        ln -s mdadd mdrun
        ln -s mdadd mdstop
</PRE>

/dev/mdx $B$r:n$j$^$9!%(B
<PRE>
        cp -a /dev/md* /md/dev
</PRE>

$B8=:_$N%7%9%F%`$+$i%7%9%F%`@_Dj$rDI2C$7$^$9(B($B%(%i!<$OL5;k$7$^$9(B)$B!%(B
<PRE>
        cp -dp /etc/* mnt/etc
        cp -dp /etc/rc.d/* mnt/etc/rc.d         ($B?7$7$$(B rc.6 $B$r4^$`(B)
        mkdir  mnt/lib/modules
        cp -a  /lib/modules/2.x.x mnt/lib/modules &lt;&mdash; $B8=:_;H$C$F$$$k%+!<%M%k(B 2.x.x $B$N%P!<%8%g%s(B
</PRE>

$B0J2<$N%U%!%$%k$rJT=8$7!$FI<T$N%U%!%$%k%7%9%F%`$K9g$o$;$F=$@5$7$^$9!%(B
<PRE>
        cd /md

$BHs%M%C%H%o!<%/4X78(B
        etc/fstab       $B<B:]$N%k!<%H%U%!%$%k%7%9%F%`$H(B RAID $B%G%P%$%9MQ$K=$@5$7$^$9(B
        etc/mdtab       $B$&$^$/F0:n$9$k$O$:$G$9(B
$B%M%C%H%o!<%/4X78(B
        etc/hosts
        etc/resolv.conf 
        etc/hosts.equiv         $B5Z$S4XO"%U%!%$%k(B
        etc/rc.d/rc.inet1       IP $B%"%I%l%9!$%M%C%H%^%9%/!$%2!<%H%&%'%$Ey(B
        etc/rc.d/rc.S           $B%U%!%$%k%7%9%F%`$N%9%F!<%?%9$K$D$$$F$NItJ,$rA4$F:o=|(B
                        # Test to see if the root partition isread-only
                $B$NItJ,$+$i(B
                        # remove /etc/mtab* so that mount will .....
                $B$^$G$r4^$^$J$$$h$&$K$7$^$9!%$3$l$K$h$j!$(BRAM $B%G%#%9%/$,(B
                $BFI$_=q$-2DG=$G%^%&%s%H$5$l$k$H=P$k$&$k$5$$%&%)!<%K%s%0(B
                $B$,=P$J$/$J$j$^$9!%(B
        etc/rc.d/rc.xxxxx       $BI,MW$J$i$PB>$N%U%!%$%k$b(B
        root/.rhosts            $B$b$7B8:_$9$l$P(B
        home/xxxx/xxxx          $BI,MW$J$i$PB>$N%U%!%$%k$b(B

    $B7Y9p(B:       $B$3$NA`:n$G!$%Q%9%o!<%I$H%7%c%I%&%Q%9%o!<%I$N%U%!%$%k$b(B
                $B?7$7$$%U%!%$%k%7%9%F%`$K0\$5$l$^$9!*$3$l$O%;%-%e%j%F%#(B
                $B$NE@$+$i$O!$K>$^$7$/$J$$$+$b$7$l$^$;$s!%(B
</PRE>

$B%7%9%F%`>e$G0l0U$G$"$k$3$H$,I,MW$J(B /dev/disk... $B$r%^%&%s%H$9$k$?$a$N<-(B
$B=q$r:n@.$7$^$9!%I.<T$N>l9g$O0J2<$N$h$&$K$J$j$^$7$?!%(B
<PRE>
        cd /md          &lt;&mdash; $B?7$7$$%U%!%$%k%7%9%F%`$N%k!<%H(B
        mkdir dosa                      DOS$B%Q!<%F%#%7%g%s$N%^%&%s%H%]%$%s%H(B

        mkdir dosb                      DOS $B%_%i!<%Q!<%F%#%7%g%s$N%^%&%s%H%]%$%s%H(B
</PRE>

$B?7$7$$%U%!%$%k%7%9%F%`$O40@.$G$9!%(Bmd $B$N;2>H%9%F!<%?%9$r(B `$B<B:]$N(B'$B%k!<%H(B
$B%G%P%$%9$K3NG'!&J]B8$9$l$P!$5/F0$N=`Hw$O=*$o$j$G$9!%(B</P>
<P>DOS $B%Q!<%F%#%7%g%s$r(B dosa, dosb $B$K%^%&%s%H$7$^$9!%(B
<PRE>
        cat /proc/mdstat | grep md0 > /dosa/raidboot/raidgood.ref
        cat /proc/mdstat | grep md0 > /dosb/raidboot/raidgood.ref

        mdstop /dev/md0
</PRE>
</P>

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