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Date: Thu, 28 Nov 2002 22:14:58 +0900
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Subject: [FreeBSD-users-jp 72377] Re: RAID5 performance(software,hardware)
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RAID $B$G$O$J$$$G$9$,!"(BPentium III 500MHz, Memory 384MB, FreeBSD 3.3R
$B$J%^%7%s$G(B SCSI $B%+!<%I$O(B Tekram DC-390F (Ultra Wide SCSI)$B$G!"(BHDD
$B$O(B IBM $B$N!D(B $B2?$H8@$C$?$+(B (^^;; Ultra Wide SCSI $BMQ$N(B 9GB $B%?%$%W$G$N(B
$B7k2L$O$3$&$J$j$^$7$?!#(B

  bash-2.03#  cstream -o /pub2/test/null.bin -i - -b 2m -B 8m -n 1g -v 3
  #0 finishing on condition 5
  1073741824 B 1.0 GB 146.12 s 7348461 B/s 7.01 MB/s
  Since end of first transfer: 7417154 B/s 7.07 MB/s
  You have new mail in /var/mail/root
  bash-2.03# 

$BJ,$+$C$F$O$$$^$7$?$,!"(BUltra Wide SCSI $B$h$j$b(B ATA100 $B$NJ}$,$:$C$HB.$$$s(B
$B$G$9$M!#$A$g$C$HJ#;(!#(B
$B$7$+$7!"(BUltra Wide SCSI $B$NBS0h$O(B 40MB/s $B$G$9$,!"$"$^$jB.EY$,=P$F$J$$(B
$B$G$9$M!#(B20MB/s $B$/$i$$$O=P$k$+$H;W$C$F$?$s$G$9$,!D(B

Compaq Proliant ML370 $B!D(B $B$@$H;W$$$^$9$,!"(B2000$BG/$KF3F~$7$?5!<o$G$b;n$7$F(B
$B$_$^$7$?!#(BOS $B$O(B RedHat 6.2 $B$G$9!#(B
$B%^%7%s%9%Z%C%/$O3N$+(B Penitum III 667MHz, Memory 640MB, RAID $B%+!<%I$O(B
Compaq $B$N(B Smart $B%"%l%$$H$$$&$d$D$G!"(BHDD $B$O(B 9GB x 6 $B$N(B RAID5 $B9=@.!#(B
HDD $B$O(B Ultra Wide SCSI $B$@$C$?$H;W$$$^$9!#(B

  [root@mmtsv]# cstream -o /pub1/test/null.bin -i - -b 2m -B 8m -n 1g -v 3
  #0 finishing on condition 5
  1073741824 B 1.0 GB 186.70 s 5751227 B/s 5.48 MB/s
  Since end of first transfer: 5781723 B/s 5.51 MB/s
  [root@mmtsv]# 

$B%&!A%`!D(B $B$H$$$&46$8$G$7$g$&$+!#(B
$B$=$&$+!"$3$N;~Be$N(B SCSI RAID5 $B$h$j!":#$N(B IDE RAID5 $B$NJ}$,B.$$$N$+!#(B(^^;

# 6$BBf9=@.$H(B 3$BBf9=@.$@$H!"(B6$BBf9=@.$NJ}$,B.EYE*$K$OITMx$K$J$k$N$+$J!)(B

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
($B3t(B) $B%;%s%H%i%k>pJs%;%s%?!<(B
                             $B8eF#OB@/(B    kgotoh@cic-kk.co.jp
