wiki:TipAndDoc/storage/RAID/benchmark

initiator

target

  • Ubuntu 10.04 x64 (Linux iscsi 2.6.32-31-generic #61-Ubuntu SMP Fri Apr 8 18:25:51 UTC 2011 x86_64 GNU/Linux)
  • iscsitarget 1.4.19+svn275-ubuntu2
    • /etc/ietd.conf
      Target iqn.2011-05.jp.mitty.local.iscsi:md0.disk
      	Lun 0 Path=/dev/md0,Type=blockio
      

hardware 1

  • Intel D915GAV
  • Pentium 4 531 3.00GHz
  • DDR400 2.5GB (see wiki:TipAndDoc/Hardware/memtest#a915GExpressonD915GAV)
  • Intel PRO/1000 PT
  • HDD
    /dev/sda: Device Model:     ST340014A
    /dev/sdb: Device Model:     WDC WD3000JD-22KLB0
    /dev/sdc: Device Model:     WDC WD3000JD-22KLB0
    /dev/sdd: Device Model:     WDC WD3000JD-22KLB0
    /dev/sde: Device Model:     WDC WD3000JD-22KLB0
    
    • hdparm
      /dev/sda:
       Timing buffered disk reads:  168 MB in  3.01 seconds =  55.77 MB/sec
      /dev/sdb:
       Timing buffered disk reads:  176 MB in  3.02 seconds =  58.29 MB/sec
      /dev/sdc:
       Timing buffered disk reads:  188 MB in  3.01 seconds =  62.42 MB/sec
      /dev/sdd:
       Timing buffered disk reads:  188 MB in  3.01 seconds =  62.36 MB/sec
      /dev/sde:
       Timing buffered disk reads:  186 MB in  3.00 seconds =  61.99 MB/sec
      
  • fdisk
    /dev/sdb1              63    10485822     5242880   fd  Linux raid autodetect
    /dev/sdc1              63    10485822     5242880   fd  Linux raid autodetect
    /dev/sdd1              63    10485822     5242880   fd  Linux raid autodetect
    /dev/sde1              63    10485822     5242880   fd  Linux raid autodetect
    

sdc1

  • /etc/ietd.conf
    Target iqn.2011-05.jp.mitty.local.iscsi:md0.disk
            Lun 0 Path=/dev/sdc1,Type=blockio
    
    /dev/sdc1:
     Timing buffered disk reads:  186 MB in  3.00 seconds =  61.92 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    52.009 MB/s
              Sequential Write :    65.029 MB/s
             Random Read 512KB :    24.361 MB/s
            Random Write 512KB :    31.095 MB/s
        Random Read 4KB (QD=1) :     0.414 MB/s [   101.0 IOPS]
       Random Write 4KB (QD=1) :     1.205 MB/s [   294.3 IOPS]
       Random Read 4KB (QD=32) :     0.466 MB/s [   113.8 IOPS]
      Random Write 4KB (QD=32) :     1.221 MB/s [   298.2 IOPS]
    
      Test : 4000 MB [I: 1.1% (56.2/5117.0 MB)] (x5)
      Date : 2011/05/19 16:01:45
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        D915GAV/WD3000JD-22KLB0/no RAID
    

RAID0

mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l0 /dev/sd[bcde]1

md0 : active raid0 sde1[3] sdd1[2] sdc1[1] sdb1[0]
      20971264 blocks 64k chunks
/dev/md0:
 Timing buffered disk reads:  564 MB in  3.00 seconds = 187.99 MB/sec
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    46.145 MB/s
              Sequential Write :    88.671 MB/s
             Random Read 512KB :    22.361 MB/s
            Random Write 512KB :    72.244 MB/s
        Random Read 4KB (QD=1) :     0.561 MB/s [   137.0 IOPS]
       Random Write 4KB (QD=1) :     5.289 MB/s [  1291.2 IOPS]
       Random Read 4KB (QD=32) :     1.109 MB/s [   270.8 IOPS]
      Random Write 4KB (QD=32) :     5.571 MB/s [  1360.0 IOPS]
    
      Test : 4000 MB [I: 0.5% (0.1/20.0 GB)] (x5)
      Date : 2011/05/19 16:24:49
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        D915GAV/WD3000JD-22KLB0/RAID0
    

RAID1

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l1 /dev/sd[bcde]1
    md0 : active raid1 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          5242816 blocks [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  186 MB in  3.01 seconds =  61.88 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    38.576 MB/s
              Sequential Write :    34.906 MB/s
             Random Read 512KB :    27.966 MB/s
            Random Write 512KB :    19.856 MB/s
        Random Read 4KB (QD=1) :     0.495 MB/s [   120.8 IOPS]
       Random Write 4KB (QD=1) :     1.147 MB/s [   280.0 IOPS]
       Random Read 4KB (QD=32) :     1.057 MB/s [   258.1 IOPS]
      Random Write 4KB (QD=32) :     1.163 MB/s [   283.8 IOPS]
    
      Test : 4000 MB [I: 1.1% (56.2/5117.0 MB)] (x5)
      Date : 2011/05/19 17:01:12
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        D915GAV/WD3000JD-22KLB0/RAID1
    

RAID5

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l5 /dev/sd[bcde]1
    md0 : active raid5 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          15728448 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  362 MB in  3.01 seconds = 120.33 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    39.126 MB/s
              Sequential Write :    28.302 MB/s
             Random Read 512KB :    22.531 MB/s
            Random Write 512KB :    12.854 MB/s
        Random Read 4KB (QD=1) :     0.536 MB/s [   131.0 IOPS]
       Random Write 4KB (QD=1) :     0.216 MB/s [    52.7 IOPS]
       Random Read 4KB (QD=32) :     1.080 MB/s [   263.6 IOPS]
      Random Write 4KB (QD=32) :     0.361 MB/s [    88.0 IOPS]
    
      Test : 4000 MB [I: 0.6% (0.1/15.0 GB)] (x5)
      Date : 2011/05/19 17:45:55
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        D915GAV/WD3000JD-22KLB0/RAID5
    

RAID6

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l6 /dev/sd[bcde]1
    md0 : active raid6 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          10485632 blocks level 6, 64k chunk, algorithm 2 [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  318 MB in  3.01 seconds = 105.59 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    34.377 MB/s
              Sequential Write :    26.325 MB/s
             Random Read 512KB :    17.089 MB/s
            Random Write 512KB :    14.883 MB/s
        Random Read 4KB (QD=1) :     0.513 MB/s [   125.2 IOPS]
       Random Write 4KB (QD=1) :     0.274 MB/s [    66.9 IOPS]
       Random Read 4KB (QD=32) :     1.035 MB/s [   252.7 IOPS]
      Random Write 4KB (QD=32) :     0.512 MB/s [   125.0 IOPS]
    
      Test : 4000 MB [I: 0.8% (0.1/10.0 GB)] (x5)
      Date : 2011/05/21 16:38:27
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        D915GAV/WD3000JD-22KLB0/RAID6
    

RAID10

near

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l10 -pn2 /dev/sd[bcde]1
    md0 : active raid10 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          10485632 blocks 64K chunks 2 near-copies [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  278 MB in  3.02 seconds =  92.07 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    35.480 MB/s
              Sequential Write :    62.991 MB/s
             Random Read 512KB :    19.100 MB/s
            Random Write 512KB :    54.111 MB/s
        Random Read 4KB (QD=1) :     0.507 MB/s [   123.8 IOPS]
       Random Write 4KB (QD=1) :     2.436 MB/s [   594.7 IOPS]
       Random Read 4KB (QD=32) :     1.053 MB/s [   257.0 IOPS]
      Random Write 4KB (QD=32) :     2.528 MB/s [   617.2 IOPS]
    
      Test : 4000 MB [I: 0.8% (0.1/10.0 GB)] (x5)
      Date : 2011/05/19 18:19:32
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        D915GAV/WD3000JD-22KLB0/RAID10 near
    

offset

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l10 -po2 /dev/sd[bcde]1
    md0 : active raid10 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          10485504 blocks 64K chunks 2 offset-copies [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  260 MB in  3.01 seconds =  86.40 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    30.610 MB/s
              Sequential Write :    53.832 MB/s
             Random Read 512KB :    18.595 MB/s
            Random Write 512KB :    48.337 MB/s
        Random Read 4KB (QD=1) :     0.518 MB/s [   126.4 IOPS]
       Random Write 4KB (QD=1) :     2.451 MB/s [   598.3 IOPS]
       Random Read 4KB (QD=32) :     1.011 MB/s [   246.8 IOPS]
      Random Write 4KB (QD=32) :     2.538 MB/s [   619.5 IOPS]
    
      Test : 4000 MB [I: 0.8% (0.1/10.0 GB)] (x5)
      Date : 2011/05/19 19:00:05
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        D915GAV/WD3000JD-22KLB0/RAID10 offset
    

far

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l10 -pf2 /dev/sd[bcde]1
    md0 : active raid10 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          10485504 blocks 64K chunks 2 far-copies [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  534 MB in  3.00 seconds = 177.81 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    46.506 MB/s
              Sequential Write :    33.721 MB/s
             Random Read 512KB :    23.436 MB/s
            Random Write 512KB :    40.049 MB/s
        Random Read 4KB (QD=1) :     0.563 MB/s [   137.4 IOPS]
       Random Write 4KB (QD=1) :     2.337 MB/s [   570.5 IOPS]
       Random Read 4KB (QD=32) :     1.082 MB/s [   264.1 IOPS]
      Random Write 4KB (QD=32) :     2.491 MB/s [   608.1 IOPS]
    
      Test : 4000 MB [I: 0.8% (0.1/10.0 GB)] (x5)
      Date : 2011/05/19 19:40:51
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        D915GAV/WD3000JD-22KLB0/RAID10 far
    

result

methodsdc1raid0raid1raid5raid6nearoffsetfar
hdparm61.92187.9961.88120.33105.5992.0786.40177.81
Sequential Read52.00946.14538.57639.12634.37735.48030.61046.506
Sequential Write65.02988.67134.90628.30226.32562.99153.83233.721
Random Read 512KB24.36122.36127.96622.53117.08919.10018.59523.436
Random Write 512KB31.09572.24419.85612.85414.88354.11148.33740.049
Random Read 4KB (QD=1)0.4140.5610.4950.5360.5130.5070.5180.563
Random Write 4KB (QD=1)1.2055.2891.1470.2160.2742.4362.4512.337
Random Read 4KB (QD=32)0.4661.1091.0571.0801.0351.0531.0111.082
Random Write 4KB (QD=32)1.2215.5711.1630.3610.5122.5282.5382.491

hardware 2

  • Gateway GT5236j (Intel DG33SXG2)
  • Celeron 430 1.80GHz
  • PC2-5300 2GB (see wiki:TipAndDoc/Hardware/memtest#G33onGatewayGT5240jPC2-5300)
  • Intel PRO/1000 PT
  • HDD
    /dev/sda: Device Model:     ST340014A
    /dev/sdb: Device Model:     WDC WD3000JD-22KLB0
    /dev/sdc: Device Model:     WDC WD3000JD-22KLB0
    /dev/sdd: Device Model:     WDC WD3000JD-22KLB0
    /dev/sde: Device Model:     WDC WD3000JD-22KLB0
    
    • hdparm
      /dev/sda:
       Timing buffered disk reads:  168 MB in  3.02 seconds =  55.70 MB/sec
      /dev/sdb:
       Timing buffered disk reads:  174 MB in  3.01 seconds =  57.82 MB/sec
      /dev/sdc:
       Timing buffered disk reads:  188 MB in  3.03 seconds =  62.13 MB/sec
      /dev/sdd:
       Timing buffered disk reads:  186 MB in  3.00 seconds =  61.92 MB/sec
      /dev/sde:
       Timing buffered disk reads:  184 MB in  3.01 seconds =  61.12 MB/sec
      
  • fdisk
    /dev/sdb1              63    10485822     5242880   fd  Linux raid autodetect
    /dev/sdc1              63    10485822     5242880   fd  Linux raid autodetect
    /dev/sdd1              63    10485822     5242880   fd  Linux raid autodetect
    /dev/sde1              63    10485822     5242880   fd  Linux raid autodetect
    

sdc1

  • /etc/ietd.conf
    Target iqn.2011-05.jp.mitty.local.iscsi:md0.disk
            Lun 0 Path=/dev/sdc1,Type=blockio
    
    /dev/sdc1:
     Timing buffered disk reads:  188 MB in  3.02 seconds =  62.22 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    58.987 MB/s
              Sequential Write :    64.984 MB/s
             Random Read 512KB :    24.785 MB/s
            Random Write 512KB :    30.615 MB/s
        Random Read 4KB (QD=1) :     0.450 MB/s [   109.9 IOPS]
       Random Write 4KB (QD=1) :     1.229 MB/s [   300.1 IOPS]
       Random Read 4KB (QD=32) :     0.483 MB/s [   117.9 IOPS]
      Random Write 4KB (QD=32) :     1.228 MB/s [   299.8 IOPS]
    
      Test : 4000 MB [I: 1.1% (56.2/5117.0 MB)] (x5)
      Date : 2011/05/19 22:53:46
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        GT5236j/WD3000JD-22KLB0/no RAID
    

RAID0

mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l0 /dev/sd[bcde]1

md0 : active raid0 sde1[3] sdd1[2] sdc1[1] sdb1[0]
      20971264 blocks 64k chunks
/dev/md0:
 Timing buffered disk reads:  690 MB in  3.01 seconds = 229.60 MB/sec
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    94.797 MB/s
              Sequential Write :    94.943 MB/s
             Random Read 512KB :    33.619 MB/s
            Random Write 512KB :    79.516 MB/s
        Random Read 4KB (QD=1) :     0.577 MB/s [   140.8 IOPS]
       Random Write 4KB (QD=1) :     5.226 MB/s [  1275.8 IOPS]
       Random Read 4KB (QD=32) :     1.639 MB/s [   400.3 IOPS]
      Random Write 4KB (QD=32) :     5.621 MB/s [  1372.2 IOPS]
    
      Test : 4000 MB [I: 0.5% (0.1/20.0 GB)] (x5)
      Date : 2011/05/19 23:11:05
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        GT5236j/WD3000JD-22KLB0/RAID0
    

RAID1

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l1 /dev/sd[bcde]1
    md0 : active raid1 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          5242816 blocks [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  174 MB in  3.00 seconds =  57.91 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    46.092 MB/s
              Sequential Write :    54.080 MB/s
             Random Read 512KB :    28.015 MB/s
            Random Write 512KB :    26.521 MB/s
        Random Read 4KB (QD=1) :     0.498 MB/s [   121.6 IOPS]
       Random Write 4KB (QD=1) :     1.147 MB/s [   279.9 IOPS]
       Random Read 4KB (QD=32) :     1.740 MB/s [   424.9 IOPS]
      Random Write 4KB (QD=32) :     1.187 MB/s [   289.9 IOPS]
    
      Test : 4000 MB [I: 1.1% (56.2/5117.0 MB)] (x5)
      Date : 2011/05/19 23:40:16
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        GT5236j/WD3000JD-22KLB0/RAID1
    

RAID5

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l5 /dev/sd[bcde]1
    md0 : active raid5 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          15728448 blocks level 5, 64k chunk, algorithm 2 [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  504 MB in  3.00 seconds = 167.82 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    65.202 MB/s
              Sequential Write :    33.132 MB/s
             Random Read 512KB :    33.384 MB/s
            Random Write 512KB :    15.253 MB/s
        Random Read 4KB (QD=1) :     0.544 MB/s [   132.8 IOPS]
       Random Write 4KB (QD=1) :     0.245 MB/s [    59.9 IOPS]
       Random Read 4KB (QD=32) :     1.641 MB/s [   400.6 IOPS]
      Random Write 4KB (QD=32) :     0.638 MB/s [   155.8 IOPS]
    
      Test : 4000 MB [I: 0.6% (0.1/15.0 GB)] (x5)
      Date : 2011/05/20 0:14:47
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        GT5236j/WD3000JD-22KLB0/RAID5
    

RAID6

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l6 /dev/sd[bcde]1
    md0 : active raid6 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          10485632 blocks level 6, 64k chunk, algorithm 2 [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  330 MB in  3.02 seconds = 109.43 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    52.403 MB/s
              Sequential Write :    32.220 MB/s
             Random Read 512KB :    26.041 MB/s
            Random Write 512KB :    15.759 MB/s
        Random Read 4KB (QD=1) :     0.520 MB/s [   126.9 IOPS]
       Random Write 4KB (QD=1) :     0.261 MB/s [    63.6 IOPS]
       Random Read 4KB (QD=32) :     1.564 MB/s [   381.9 IOPS]
      Random Write 4KB (QD=32) :     0.734 MB/s [   179.3 IOPS]
    
      Test : 4000 MB [I: 0.8% (0.1/10.0 GB)] (x5)
      Date : 2011/05/20 18:39:38
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        GT5236j/WD3000JD-22KLB0/RAID6
    

RAID10

near

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l10 -pn2 /dev/sd[bcde]1
    md0 : active raid10 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          10485632 blocks 64K chunks 2 near-copies [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  346 MB in  3.01 seconds = 115.12 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    50.446 MB/s
              Sequential Write :    81.228 MB/s
             Random Read 512KB :    31.192 MB/s
            Random Write 512KB :    59.114 MB/s
        Random Read 4KB (QD=1) :     0.528 MB/s [   128.8 IOPS]
       Random Write 4KB (QD=1) :     2.496 MB/s [   609.4 IOPS]
       Random Read 4KB (QD=32) :     1.679 MB/s [   409.9 IOPS]
      Random Write 4KB (QD=32) :     2.607 MB/s [   636.5 IOPS]
    
      Test : 4000 MB [I: 0.8% (0.1/10.0 GB)] (x5)
      Date : 2011/05/20 0:44:04
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        GT5236j/WD3000JD-22KLB0/RAID10 near
    

offset

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l10 -po2 /dev/sd[bcde]1
    md0 : active raid10 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          10485504 blocks 64K chunks 2 offset-copies [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  348 MB in  3.01 seconds = 115.50 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    57.014 MB/s
              Sequential Write :    81.717 MB/s
             Random Read 512KB :    31.337 MB/s
            Random Write 512KB :    48.060 MB/s
        Random Read 4KB (QD=1) :     0.533 MB/s [   130.1 IOPS]
       Random Write 4KB (QD=1) :     2.459 MB/s [   600.2 IOPS]
       Random Read 4KB (QD=32) :     1.516 MB/s [   370.1 IOPS]
      Random Write 4KB (QD=32) :     2.612 MB/s [   637.7 IOPS]
    
      Test : 4000 MB [I: 0.8% (0.1/10.0 GB)] (x5)
      Date : 2011/05/20 1:10:50
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        GT5236j/WD3000JD-22KLB0/RAID10 offset
    

far

  • mitty@iscsi:~$ sudo mdadm --create /dev/md0 -n4 -l10 -pf2 /dev/sd[bcde]1
    md0 : active raid10 sde1[3] sdd1[2] sdc1[1] sdb1[0]
          10485504 blocks 64K chunks 2 far-copies [4/4] [UUUU]
    
    /dev/md0:
     Timing buffered disk reads:  686 MB in  3.01 seconds = 227.96 MB/sec
    
  • result
    -----------------------------------------------------------------------
    CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo
                               Crystal Dew World : http://crystalmark.info/
    -----------------------------------------------------------------------
    * MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
    
               Sequential Read :    98.748 MB/s
              Sequential Write :    44.695 MB/s
             Random Read 512KB :    33.241 MB/s
            Random Write 512KB :    40.741 MB/s
        Random Read 4KB (QD=1) :     0.574 MB/s [   140.1 IOPS]
       Random Write 4KB (QD=1) :     2.399 MB/s [   585.6 IOPS]
       Random Read 4KB (QD=32) :     1.627 MB/s [   397.2 IOPS]
      Random Write 4KB (QD=32) :     2.500 MB/s [   610.3 IOPS]
    
      Test : 4000 MB [I: 0.8% (0.1/10.0 GB)] (x5)
      Date : 2011/05/20 2:08:56
        OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)
        GT5236j/WD3000JD-22KLB0/RAID10 far
    

result

methodsdc1raid0raid1raid5raid6nearoffsetfar
hdparm62.22229.6057.91167.82109.43115.12115.50227.96
Sequential Read58.98794.79746.09265.20252.40350.44657.01498.748
Sequential Write64.98494.94354.08033.13232.22081.22881.71744.695
Random Read 512KB24.78533.61928.01533.38426.04131.19231.33733.241
Random Write 512KB30.61579.51626.52115.25315.75959.11448.06040.741
Random Read 4KB (QD=1)0.4500.5770.4980.5440.5200.5280.5330.574
Random Write 4KB (QD=1)1.2295.2261.1470.2450.2612.4962.4592.399
Random Read 4KB (QD=32)0.4831.6391.7401.6411.5641.6791.5161.627
Random Write 4KB (QD=32)1.2285.6211.1870.6380.7342.6072.6122.500

Last modified 7 years ago Last modified on May 21, 2011 5:19:57 PM

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