From owner-FreeBSD-users-jp@jp.freebsd.org  Thu Aug 21 11:55:32 1997
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From: "Yamamoto Takanori" <yamamoto@nmt.co.jp>
To: <FreeBSD-users-jp@jp.freebsd.org>
Date: Thu, 21 Aug 1997 11:55:18 -0000
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Subject: [FreeBSD-users-jp 17081] RE: hardware RAID controller
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----------
> $B:9=P?M(J : IIJIMA Akihiro <aki@noc.titech.ac.jp>
> $B08@h(J : FreeBSD-users-jp@jp.freebsd.org
> $B7oL>(J : [FreeBSD-users-jp 17073] hardware RAID controller
> $BAw?.F|;~(J :  1997$BG/(J 8$B7n(J 21$BF|(J $BLZMKF|(J $B8aA0(J 09:26
> 
> > $B!!;d$N$H$3$m$G$O!"0J2<$N$h$&$J9=@.$G!"2wD4$KF0$$$F$^$9!#(J
> > $B!!(JSCSI-host : Adaptec AHA-2940UW
> > $B!!(JRAID : IFT 3102UA(Cache 16MB, RAID5)
> > $B!!(JSCSI-drive : IBM DCAS34330 4GB x 3(Removable)
> 
> $B$9$$$^$;$s$,!"$3$l$N(J $BJ*M}E*G[@~$H(J $BO@M}9=@.(J $B$r65$($F$/$@$5$$!#(J
> $B0J2<$O;d$NM=A[?^!#(J



$B!!$^$@(J 3102U $B$r40A4$KM}2r$7$F$$$k$o$1$G$O$J$$$N$G!"4*0c$$!&4V0c$$$,(J
$B$"$k$+$bCN$l$^$;$s$,!";d$,8=;~E@$GCN$C$F$$$k8B$j$N$3$H$r$*EA$($7$^$9!#(J
$B!JK|0l8m$j$N$"$k>l9g$O@'Hs8f65<($/$@$5$$!d=t8-!K(J


 <<$B@=IJ35MW(J>>

$B!!(J3102U $B$O(J Infortrend $B<R(J $B$K$h$k(J Ultra-Wide-SCSI-to-Ultra-Wide-SCSI
Disk Array Controller $B@=IJ$G$"$j!"(JOS $B$rA*$P$:$KF0:n$5$;$k$3$H$,(J
$B$G$-$^$9!#(J(RAID0,1,3,5 $B$rMxMQ2DG=(J)
$B!!;d$,9XF~;~$KJ9$$$?(J Proside $B$NC4Ev<T$NOC$G$O!"!V(J FreeBSD $B$G$N(J
$B1?MQ<B@S$O$"$k!W$H$N$3$H$G$7$?!#(J

$B!!(J3102U $B$K$OI8=`$G(J3$B$D$N(J SCSI Channel $B$,Ek:\$5$l$F$*$j!"%*%W%7%g%s$G(J
6$B$D$^$G(J
$B3HD%$9$k$3$H$,=PMh$^$9!#$3$l$i(J Channel0,1,2 $B$N$&$A!"IaDL$O(J Channel0 $B$K(J
 Host $B$r@\B3$7!"(JChannel1 $B$J$$$7(J 2 $B$K(J Drive $B$r@\B3$9$k$h$&$K$7$^$9$,!"(J
$B$3$3$K$O%O!<%I%&%'%"E*$J@)Ls$O$J$$$N$G!"(JChannel1,2 $B$K(J Host $B$r@\B3$7$F$b(J
$B@5>o$KF0:n$7$^$9!#;d$N4D6-$G$O!"(JChannel0,2$B$r(JDrive$B$K!"(JChannel1$B$r(JHost$B$K(J
$B@_Dj$7$F1?MQ$7$F$$$^$9!#(J



 <<$BJ*M}E*@\B3(J>>

  +-------------+
  | Host System |
  +-------------+
  |  AHA2940UW  |
  +------+------+
         |(Host)
     +---+
     |            (Drive, ID=0,1,2)
     |  +---------O--O--O--X
     |  |
     |  |         (Drive)
     |  |  +---------------X(Terminator)
    0| 1| 2|
  +--+--+--+--+
  | IFT 3102U |
  +-----------+
(RAID Controller)


 *$B%]%$%s%H(J*
$B!!!&(J1$B$D$N(J SCSI Channel $B$K$V$i2<$2$k%N!<%I$O!":G9b(J7$BBf$^$G$G!"(J
$B!!!!$=$l$>$l$K8DJL$N(JSCSI ID $B$r?6$jEv$F$kI,MW$,M-$j$^$9!#(J
$B!!!&(JController $BB&$G$O!"(JHost, Drive $B$N$O!"%?!<%_%M!<%?!<M-$j$K(J
$B!!!!@_Dj$7$^$9!#(J
$B!!!&(JController $BB&%$%s%?!<%U%'!<%9$N(JID$B@_Dj$O!"(JHost:0, Drive:7 $B$K(J
$B!!!!@_Dj$7$^$9!#(J
$B!!!&(JDrive $B$N(J LUN $B$O!"(JHost $B$N(J LUN $B$HF1$8$/$7$^$9!#(J



 <<$BO@M}E*9=@.(J>>

$B!!(JChannel1$B>e$N(J3$BBf$N%I%i%$%V$r(JRAID5$B$G0l$D$K$^$H$a$F$$$^$9!#(J
$B!!(JRAID$B$rM-8z$K$7$?>l9g$N%I%i%$%VMFNL$O!"0J2<$N7W;;<0$r;2>H$7$F(J
$B!!$/$@$5$$!#(J

$B!!(J+-----------+--------------------+--------------------+
$B!!(J| OPERATION | Min.DRIVE REQUIRED | CAPACITY AVAILABLE |
$B!!(J+-----------+--------------------+--------------------+
$B!!(J| RAID0     | 2 drives           | T                  |
$B!!(J| RAID1     | 2 drives           | T/2                |
$B!!(J| RAID0+1   | 4 drives           | T/2                |
$B!!(J| RAID3     | 3 drives           | T*(n-1)/n          |
$B!!(J| RAID5     | 3 drives           | T*(n-1)/n          |
$B!!(J+-----------+--------------------+--------------------+
$B!!(J T: $B@\B3$5$l$?A4$F$N%I%i%$%V$NMFNL$NOB(J
$B!!(J n: $B@\B3$5$l$?%I%i%$%V$N?t(J


$B!!;d$N9=@.$G$O!"(J4GB*3$BBf$G$9$+$i!"(J12*(3-1)/3$B$G!"ET9g(J8GB$B$N%I%i%$%V$H$7$F(J
$BG'<1$5$l$k$H$$$&$3$H$G$9!#!J(JHost$BB&$+$i$O!"(JSCSI ID=0 $B$N0lBf$N%I%i%$%V(J
$B$H$7$FG'<1$5$l$F$$$^$9!K(J

$B!!$A$J$_$K!"(JRAID $B$N%3%s%H%m!<%k$K4X$7$F$O!"%U%m%s%H%Q%M%k$+$i$NA`:n$G(J
$BKX$I;vB-$j$^$9!#(J
$B!J(JBIOS$B$N%"%C%W%G!<%HEy$O!"(JRS-232C$B7PM3$G9T$C$F$d$kI,MW$,M-$j$^$9!K(J



 <<$B$=$NB>=t!9(J>>

$B!!(JController $B$N(J BIOS $B$O!"(J1.11$B$G1?MQ$7$F$$$^$9!#(J

$B!!(JBIOS $B$O(J ftp://ftp.infortrend.com/ $B$+$i%@%&%s%m!<%I$G$-$^$9!#(J
$B!J:G?7%P!<%8%g%s$N$b$N$O!"BfOQ%5%$%H$K$N$_B8:_$7$F$$$k$h$&$G$9!K(J

$B!!(JRAID5$B$G1?MQ$9$k$J$i!"%9%Z%"%I%i%$%V$rF~$l$F!"(J4$BBf0J>e$N%I%i%$%V$G(J
$B1?MQ$9$k$N$,L5Fq$G$7$g$&!#!J;d<+?H!"8=:_DI2CCmJ8$7$F$$$^$9!K(J

$B!!FsBf$N%[%9%H%7%9%F%`$r@\B3$7$?$j!"%3%s%H%m!<%i$rFs=E2=$G$-$?$j$H!"(J
$B7k9=%$%s%F%j%8%'%s%9$G$9!#2L$7$F$=$l$,0BDjF0:n$9$k$+$I$&$+$O(J
$BCN$j$^$;$s$,!#(J

$B!!@=IJIUB0$N%^%K%e%"%k$OIT?F@Z$K;W$($^$9!#3F%*%Z%l!<%7%g%s$N@bL@$,(J
$BBgH>$r@j$a!"%H%i%V%kH/@8;~$K$I$&$$$&%7!<%1%s%9$GBP=h$9$Y$-$+$,(J
$B$"$^$j?F@Z$K$O=q$+$l$F$$$J$$$H$$$C$?46$8$G$9!#(J

$B!!@=IJ$N>\$7$$%9%Z%C%/$K$D$$$F$O!"0J2<$N%5%$%H$r;2>H$7$F$/$@$5$$!#(J
$B!!!!(Jhttp://www.infortrend.com/
$B!!!!(Jhttp://www.infortrend.com.tw/



--------
New Media Tokushima Co.,ltd.
System Development Dept.
Yamamoto Takanori <yamamoto@nmt.co.jp>




