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From: "Yoshiharu ITO" <yochy@gamma.ocn.ne.jp>
To: FreeBSD-users-jp@jp.FreeBSD.org
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Date: Mon, 31 Mar 2008 22:05:52 +0900
X-Sequence: FreeBSD-users-jp 91511
Subject: [FreeBSD-users-jp 91511] Re: HP SmartArray P400 RAID5 very 
 slow.
Sender: owner-FreeBSD-users-jp@jp.FreeBSD.org
X-Originator: yochy@gamma.ocn.ne.jp
X-Distribute: distribute version 2.1 (Alpha) patchlevel 24e+060209

$B$$$H$&$H$$$$$^$9!#(B

2008$BG/(B 3$B7n(B 20$BF|!JLZ!K(B00:06 $B$K(B Yoshiharu ITO $B$5$s$O=q$-$^$7$?!'(B
 >   - BBWC $B$NM-L5$G%i%$%H%Q%U%)!<%^%s%9$K:9$,=P$k$h$&$@(B
 >   - BBWC $BL5$7$G%i%$%H%Q%U%)!<%^%s%9$,Dc$$(B(10MB/sec $BDxEY(B)$B$N$O(B
 >     $B<BNO$N$h$&$@(B($B$=$l$K$7$F$b(B Fast Narrow SCSI $B$HF1$8$/$i$$$C(B
 >     $B$F$N$O$"$s$^$j$J(B)
 >
 > $B$H$$$&$3$H$K$J$k$G$7$g$&$+!#%a!<%+!<$N1D6H$K$O(B BBWC $B$NDI2C$r(B
 > $BDs0F$5$l$F$$$?$N$G$9$,!"$=$&$7$F$_$k$N$,NI$5$=$&$@$H$$$&$3$H(B
 > $B$,8+$($F$-$^$7$?!#(B

$B%a!<%+!<$N1D6H$+$i(B 512MB $B%-%c%C%7%e%b%8%e!<%k$H%P%C%F%j!<$r<Z$j$k(B
$B$3$H$,$G$-$?$N$G!">r7o$r?6$C$F3NG'$7$F$_$^$7$?!#:#2s$O(B RAID 5 $B%\(B
$B%j%e!<%`$N$_$K$J$j$^$9!#(B

$BNc$K$h$C$F(B(?)$B>\:Y$J=PNO$O<j85$KL5$$$?$a3d0&$7$^$9!#(B

  - 256MB $B%P%C%F%j!<$J$7(B : 8.0MB/sec $BDxEY(B
  - 512MB $B%P%C%F%j!<$J$7(B : 8.0MB/sec $BDxEY(B
  - 256MB $B%P%C%F%j!<$"$j(B : 135MB/sec $BDxEY(B
  - 512MB $B%P%C%F%j!<$"$j(B : 165MB/sec $BDxEY(B

$B$d$O$j%P%C%F%j!<$NM-L5$G(B($B$3$s$J$K:9$,=P$FNI$$$N$+$HG:$`$[$I(B)$BBg$-(B
$B$/%Q%U%)!<%^%s%9$K:9$,=P$^$7$?!#(B

 RAID 5 $B1?MQ$NM=Dj$,$"$kJ}$O!"%P%C%F%j!<%P%C%/%"%C%W<0%i%$%H%-%c%C(B
$B%7%eIU$-$r$*$9$9$a$7$^$9!#(B

----
$B$h$C$A$$(B


