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To: FreeBSD-users-jp@jp.FreeBSD.org
In-Reply-To: Your message of "Wed, 27 Nov 2002 11:49:52 +0900"
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Date: Thu, 28 Nov 2002 16:19:01 +0900
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Subject: [FreeBSD-users-jp 72372] Re: RAID5 performance(software,hardware)
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From: Kawaguti Ginga <ginga-freebsd@ginganet.org>
Date: Wed, 27 Nov 2002 11:49:52 +0900

Dell PoweEdge500SC $B$N(B IDE RAID5 $B9=@.(B + RedHat 7.2 $B$N%^%7%s$G(B
$B%F%9%H$7$F$_$^$7$?!#(BRedHat $B$N!!(Bdmesg $B$G$O$3$s$JIw$KG'<1$5$l$^$9!#(B

  megaraid: v1.17a (Release Date: Fri Jul 13 18:44:01 EDT 2001)
  megaraid: found 0x101e:0x1960:idx 0:bus 0:slot 10:func 0
  scsi2 : Found a MegaRAID controller at 0xe0847000, IRQ: 30
  scsi2 : Enabling 64 bit support
  megaraid: [6.61:1.01] detected 1 logical drives
  megaraid: supports extended CDBs.
  megaraid: channel[1] is raid.
  megaraid: channel[2] is raid.
  megaraid: channel[3] is raid.
  megaraid: channel[4] is raid.
  scsi2 : AMI MegaRAID 6.61 254 commands 16 targs 4 chans 40 luns
  scsi2: scanning channel 1 for devices.
  scsi2: scanning channel 2 for devices.
  scsi2: scanning channel 3 for devices.
  scsi2: scanning channel 4 for devices.
  scsi2: scanning virtual channel for logical drives.
    Vendor: MegaRAID  Model: LD 0 RAID5   76G  Rev: 6.61
    Type:   Direct-Access                      ANSI SCSI revision: 02
  Attached scsi disk sda at scsi2, channel 4, id 0, lun 0
  SCSI device sda: 156213248 512-byte hdwr sectors (79981 MB)
  Partition check:
   sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 >

> 	% cstream -o /Amrd0/null.bin -i - -b 2m -B 8m -n 1g -v 3
> $B$J$s$F$d$k$H(B 3.24MB/s $B$H=P$^$9!%(B
> (read $BB&$O(B 30MB/s $B$H$+(B 50MB/s $B$H$+=P$^$9(B)

$B$3$N%^%7%s$K(B cstream $B$r%$%s%9%H!<%k$7$F@n8}$5$s$HF1$8;v$r$7$F$_$^$7$?!#(B
$B%^%7%s%9%Z%C%/$O(B Pentium III 1.2GHz, Memory 512MB $B$G$9!#(B
HDD $B$O(B 40GB x 3 $B$G$9$,!"7?<0$O$o$+$j$^$;$s!#(B(^^;

  root@irving root]# cstream -o /usr/test/null.bin -i - -b 2m -B 8m -n 1g -v 3
  #0 finishing on condition 5
  1073741824 B 1.0 GB 100.98 s 10633213 B/s 10.14 MB/s
  Since end of first transfer: 10723684 B/s 10.23 MB/s
  [root@irving root]#

$B@n8}$5$s$,;n$7$?8<?M;V8~$N$b$N$h$j$O@-G=$,$$$$$h$&$G$9!#(B(^_^)

$B:G=i$N%a%$%k$K=q$$$?$h$&$K!"(BPowerEdge600SC $B$N(B IDE RAID5 $B9=@.%^%7%s$r(B
$BF3F~$7$F(B FreeBSD 4.7 $B$G;H$*$&$+$H9M$($F$$$k$N$G$9$,!"@n8}$5$s$NEj9F$r(B
$B8+$F!"$"$^$jCY$$$H$$$d$@$J!A$H;W$C$F$?$N$G$9$,!">/$70B?4$7$^$7$?!#(B
# $B$G$b!"(BFreeBSD $B$G;n$9$HCY$$$H$+8@$&%*%A$@$C$?$i%d%@$J!#(B(^^;

$B$"$^$jB.$$$H$b8@$($b$7$J$$$s$G$7$g$&$1$I!"$@$$$?$$$O$3$s$J$b$N$J$N(B
$B$G$7$g$&$+!)(B

$B;n$7$K!"(BCeleron 1.2GHz, 512MB, HDD $B$O(B dmesg $B$K$h$l$P(B IC35L080AVVA07-0
$B$H=P$F$/$k(B FreeBSD 4.7-RELEASE $B%^%7%s$G$bF1$8;v$r$d$C$F$_$^$7$?!#(B
$B$3$l$O(B RAID $B$G$O$J$/IaDL$N(B IDE $B9=@.$G(B IDE HDD $B$O(B ATA100 $B$GF0$$$F$$$^$9!#(B

  benbow# 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 24.30 s 44190811 B/s 42.14 MB/s
  Since end of first transfer: 44869390 B/s 42.79 MB/s
  benbow#

$B$3$s$J$b$N$J$N$+$J!)(B

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                             $B8eF#OB@/(B    kgotoh@cic-kk.co.jp
