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From: Tatsumi Hosokawa <hosokawa@FromTo.Cc>
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Date: Mon, 09 Dec 2002 17:54:34 +0900
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Subject: [FreeBSD-users-jp 72509] Re: RAID5 performance(software,hardware)
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$B$[$=$+$o$G$9!#(B

At Mon, 9 Dec 2002 16:47:39 +0900,
Kawaguti Ginga wrote:
> 
> $B0l1~!$%O!<%I%&%'%"<+BN$O(B "$B%O!<%I%&%'%"(B RAID" $B7OE}$N@=IJ$G(B
> i960 100MHz + 16MB cache $B$r;}$C$F$$$^$9!%(B
> http://www.lsilogic.com/products/stor_prod/raid/i4.html

$B$A$g$C$H8!:w$7$F$_$k$H!"$3$N$"$?$j$K5$$K$J$k5-=R$,!D!#(B
http://www.bless.co.jp/storage/mainbn020119p2.html

> $B$^$"!$0B$$@=IJ$@$7!$;(;o$G$N%Y%s%A%^!<%/7k2L$H;w$?@-G=$O=P$F$$$k$7!$(B
> $B;H$$>!<j$NLL$O0-$/$J$5$=$&$J$N$GJL$K8=>u$G$b9=$o$J$$$N$G$9$,!$(B
> [FreeBSD-users-jp 72372] $B$N8eF#$5$s$H$N:9$,(B
> (RAID $B$N%O!<%I%&%'%"$,F1Ey$G$"$k$J$i(B)$B$A$g$C$HIT2D2r!$$H$$$&(B
> $B$N$,5$$K$J$C$F$$$^$9(B...

$B$A$J$_$K;29M$^$G$K!"<j85$K$"$k(B SCSI RAID $B%+!<%I$G$O!D(B 
(10000RPM SCSI $B$G(B 3 $BK\AH$_(B RAID5)$B!#(B
$BB.$$$J!#(B

Mylex AccelRAID 170 (mly0):

# cstream -o /data/tmp/null.bin -i - -b 2m -B 8m -n 1g -v 3
#0 finishing on condition 5
1073741824 B 1.0 GB 57.58 s 18647145 B/s 17.78 MB/s
Since end of first transfer: 18769192 B/s 17.90 MB/s

Adaptec SCSI RAID 2110S (asr0):

# cstream -o /var/tmp/null.bin -i - -b 2m -B 8m -n 1g -v 3
#0 finishing on condition 5
1073741824 B 1.0 GB 55.54 s 19333210 B/s 18.44 MB/s
Since end of first transfer: 19403156 B/s 18.50 MB/s

$B$?$@$7!""-$3$l!"F~$C$F$$$k%G%#%9%/ITL@$J$s$@$1$I!"(B
$B$3$&$$$&CY$$$N$b$"$C$?!#(B

Adaptec SCSI RAID 2100S (asr0):

# cstream -o /var/tmp/null.bin -i - -b 2m -B 8m -n 1g -v 3
#0 finishing on condition 5
1073741824 B 1.0 GB 215.9 s (3:35 min) 4974080 B/s 4.74 MB/s
Since end of first transfer: 4981008 B/s 4.75 MB/s


--
Tatsumi Hosokawa
E-mail : <hosokawa@FromTo.Cc>
http://FromTo.Cc/hosokawa/
