From owner-FreeBSD-users-jp@jp.freebsd.org  Wed Dec 24 14:00:34 1997
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Message-Id: <19971224140032A.simokawa@sat.t.u-tokyo.ac.jp>
Date: Wed, 24 Dec 1997 14:00:32 +0900
From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
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Subject: [FreeBSD-users-jp 22735] Re: Expmt. Concatinated Disk driver.
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$B2<@n!wElBg$G$9(B.

takuya-k> $BK\Bj$O!"(BCCD $B$H$+(B RAID $B$N@-G=$K$D$$$F$G$9!#(B
takuya-k> 
takuya-k>   $BF14|E>AwB.EY$,(B 8MB/sec $B$N(B HDD $B$r0l$D$N(B UltraWide $B$J(B SCSI 
takuya-k>   $B%P%9$K(B 6 $BBf0J>e$D$J$$$G(B RAID5 $B$r9=@.$9$k$H:GBgE>AwB.EY$,(B 
takuya-k>   40MB/sec $B$r1[$($k$N$G(B UltraWide $B$G$bNOITB-(B
takuya-k> 
takuya-k> $B$H$$$&$h$&$J@bL@$rL\$K$9$k$3$H$,$"$k$N$G$9$,!"$3$l$OK\Ev$J$N(B
takuya-k> $B$G$7$g$&$+(B? $B$b$A$m$s!"(BRAID $B%3%s%H%m!<%i$N%P%C%U%!MFNL$r1[$((B
takuya-k> $B$k%5%$%:$N%P!<%9%HE>Aw$r9T$J$&>l9g$NOC$G$9!#(B

40MB/sec$B6a$/$@$9$?$a$K$O(B, $BIaDL$O(BRAID controller$B$,(Bbottle neck$B$K$J$k$h(B
$B$&$J5$$,$7$^$9(B. $B$=$l$@$1$G$k(Bcontroller$B$,$"$l$P@'HsCN$j$?$$$G$9(B.

$B$?$7$+(Bccd(striping$B$N$_(B)$B$G$b(B20MB/s$BDxEY$7$+=P$J$$$N$G$O$J$$$G$7$g(B
$B$&$+(B? $B$3$l$O(Bmemory$B$N(Bbandwidth$B$NLdBj$@$H$$$&OC$rJ9$$$?$3$H$,$"$j$^(B
$B$9(B.

$B!t(Bpc$B$@$H:#$d(BSCSI bus$B0lK\$U$d$9$N$b$?$$$7$F(Bcost$B$+$+$i$J$$$G$9$M(B.
$B!t(BPCI slot$B$,B-$j$J$$$H$$$&$3$H$O$"$C$F$b(B.

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: finger -l simokawa@sat.t.u-tokyo.ac.jp
