おまえの hddparm -tT 教えてください。

bash# cat /proc/ide/hda/model
TOSHIBA MK6015MAP
/dev/hda:
Timing buffer-cache reads: 64 MB in 0.55 seconds =116.36 MB/sec
Timing buffered disk reads: 32 MB in 2.44 seconds =13.11 MB/sec

bash-2.05# cat /proc/ide/hda/model
FUJITSU MPG3409AT E
/dev/hda:
Timing buffer-cache reads: 128 MB in 1.04 seconds =123.08 MB/sec
Timing buffered disk reads: 64 MB in 2.35 seconds = 27.23 MB/sec

bash-2.05# cat /proc/ide/hdc/model
IBM-DPTA-372050
/dev/hdc:
Timing buffer-cache reads: 128 MB in 1.01 seconds =126.73 MB/sec
Timing buffered disk reads: 64 MB in 2.94 seconds = 21.77 MB/sec

>>313
どうもです。
そうですね、この際いろいろ試すべきですよね。このままじゃとても運用なんてできない・・・

RAID0で5本です。

/sbin/hdparm -tT /dev/md1

/dev/md1:
Timing cached reads: 2372 MB in 2.00 seconds = 1186.15 MB/sec
Timing buffered disk reads: 1014 MB in 3.00 seconds = 337.46 MB/sec

SSDモデルのMacbook AirにFedora Core8入れました。

Intel(R) Core(TM)2 Duo CPU P7700 @ 1.80GHz

[root@localhost ~]# cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: MCCOE64GEMPP Rev: 2.9.
Type: Direct-Access ANSI SCSI revision: 05

[root@localhost ~]# /sbin/hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 4608 MB in 1.99 seconds = 2311.78 MB/sec
Timing buffered disk reads: 160 MB in 3.03 seconds = 52.75 MB/sec

# hdparm -itT /dev/sda1

/dev/sda1:

Model=ST340015A , FwRev=3.01 , SerialNo=5LA8TBQR
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6

* signifies the current active mode

Timing cached reads: 856 MB in 2.00 seconds = 427.63 MB/sec
Timing buffered disk reads: 130 MB in 3.02 seconds = 43.03 MB/sec

# hdparm -itT /dev/hda

/dev/hda:

Model=Maxtor 4D080H4, FwRev=DAK019K0, SerialNo=D40XEQHE
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=160080319
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 0: ATA/ATAPI-1,2,3,4,5,6

* signifies the current active mode

Timing cached reads: 734 MB in 2.00 seconds = 366.76 MB/sec
Timing buffered disk reads: 106 MB in 3.02 seconds = 35.10 MB/sec

hdparm -itT /dev/hda

/dev/hda:

Model=ST3160021A, FwRev=8.01, SerialNo=5JS5K6W3
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 *udma4 udma5
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 2: ATA/ATAPI-1,2,3,4,5,6

* signifies the current active mode

Timing cached reads: 952 MB in 2.00 seconds = 475.68 MB/sec
Timing buffered disk reads: 114 MB in 3.22 seconds = 35.41 MB/sec

3桁超えの報告がほとんどないぢゃん・・・
低スペックの情報集めてもあんまタメにならんのでは

/dev/sda:

Model=ST3320620NS , FwRev=3.AEG , SerialNo= 9QF5M1AN
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 2222 MB in 2.00 seconds = 1111.37 MB/sec
Timing buffered disk reads: 236 MB in 3.01 seconds = 78.39 MB/sec

500GB*6@mdadm RAID6

/dev/md0
Timing cached reads:   16284 MB in  2.00 seconds = 8156.26 MB/sec
Timing buffered disk reads:  942 MB in  3.00 seconds = 313.61 MB/sec

すげぇw

そんなもんだろ

# cat /sys/block/sdc/device/model
WDC WD6400AAKS-2

# hdparm -tT /dev/sdc
/dev/sdc:
Timing cached reads: 8956 MB in 2.00 seconds = 4486.14 MB/sec
Timing buffered disk reads: 324 MB in 3.01 seconds = 107.77 MB/sec

単体で3桁は初体験

>>325
> 単体で3桁は初体験
確かに興味深い。

WDの320GB/1プラのは速いねぇ。

http://human7.2ch.net/test/read.cgi/uwasa/1207065281/336

>>323
わが国のＩＴはユーザに使用法を十分説明する時間がありません。
このため、初心者がベテランに疑問についてたずねる光景を目にすることがあります。
しかし本来は事故（情報漏えいなど）が発生した場合の責任は、
接続業者、サーバ運営者、システムを開発したエンジニアにあります。
メーカあるいは購入店にたずねるべきです。
利用者の仕事は自治（掲示板の秩序を守ること）です。助言を行ってはなりません。
素人が専門技術に言及するのは「親切」ではありません。「無責任」です。
海外のプロフェッショナルは、「私の仕事ではない」と答えるはずです。

T61
# hdparm -itT /dev/sda

/dev/sda:

Model=FUJITSU MHW2160BH PL , FwRev=0084001E, SerialNo=
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=312581808
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-3,4,5,6,7

* signifies the current active mode

Timing cached reads: 6332 MB in 1.99 seconds = 3186.16 MB/sec
Timing buffered disk reads: 140 MB in 3.00 seconds = 46.63 MB/sec

Velociraptor

/dev/sda:

Model=WDC WD3000GLFS-01F8U0 , FwRev=03.03V01, SerialNo=
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=586072368
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 8112 MB in 2.00 seconds = 4063.08 MB/sec
Timing buffered disk reads: 368 MB in 3.01 seconds = 122.28 MB/sec

ラプターか
最近の320GBプラッタでもそれくらいは逝くそうだな

今まで報告が無かったみたいなんで。

Model=WDC WD10EACS-00D6B0 , FwRev=01.01A01, SerialNo= WD-WCAU40247453
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1953525168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 1754 MB in 2.00 seconds = 876.78 MB/sec
Timing buffered disk reads: 280 MB in 3.01 seconds = 92.93 MB/sec

hdparm -itT /dev/sda

/dev/sda:

Model=Hitachi HDT725040VLA360 , FwRev=V5COA7EA, SerialNo= VFK301R30RVK4K
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=15315kB, MaxMultSect=16, MultSect=?1?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 3184 MB in 2.00 seconds = 1593.01 MB/sec
Timing buffered disk reads: 198 MB in 3.03 seconds = 65.41 MB/sec


こんなものなのか?
遅いような気がするが...........

hdparm -itT /dev/sdb

/dev/sdb:

Model=Maxtor 6V250F0 , FwRev=VA111900, SerialNo=V59BNKPG
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=DualPortCache, BuffSize=16384kB, MaxMultSect=16, MultSect=?1?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 0: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 3138 MB in 2.00 seconds = 1570.41 MB/sec
Timing buffered disk reads: 196 MB in 3.01 seconds = 65.05 MB/sec


うーーむ

hdparm -itT /dev/sdb

/dev/sdb:

Model=Hitachi HDS721075KLA330 , FwRev=GK8OAB0A, SerialNo= GTE200P8GMX7LE
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=31157kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

* signifies the current active mode

Timing cached reads: 3476 MB in 2.00 seconds = 1738.15 MB/sec
Timing buffered disk reads: 250 MB in 3.01 seconds = 83.12 MB/sec

$ sudo /sbin/hdparm -itT /dev/sdb

/dev/sdb:

Model=WDC WD1001FALS-00J7B0 , FwRev=05.00K05, SerialNo= WD-WMATV0088937
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=32767kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1953525168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 6128 MB in 1.99 seconds = 3072.37 MB/sec
Timing buffered disk reads: 308 MB in 3.02 seconds = 102.07 MB/sec

6台分一気に(WD1600AVJS x 1 & Samsung HD103UI x 5)。

# hdparm -i -tT /dev/sd[abcdef]

/dev/sda:

Model=WDC WD1600AVJS-63WNA0 , FwRev=58.01D58, SerialNo= WD-WCAS26811273
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1 ATA/ATAPI-2 ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

* signifies the current active mode

Timing cached reads: 5200 MB in 2.00 seconds = 2599.82 MB/sec
Timing buffered disk reads: 222 MB in 3.02 seconds = 73.48 MB/sec

/dev/sdb:

Model=SAMSUNG HD103UI , FwRev=1AA01111, SerialNo=S1PGJ1BQ800187
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
BuffType=DualPortCache, BuffSize=32767kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

* signifies the current active mode

Timing cached reads: 5204 MB in 2.00 seconds = 2602.79 MB/sec
Timing buffered disk reads: 258 MB in 3.01 seconds = 85.83 MB/sec

/dev/sdc:

Model=SAMSUNG HD103UI , FwRev=1AA01111, SerialNo=S1PGJ1BQ800205
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
BuffType=DualPortCache, BuffSize=32767kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

* signifies the current active mode

Timing cached reads: 5224 MB in 2.00 seconds = 2613.18 MB/sec
Timing buffered disk reads: 274 MB in 3.01 seconds = 91.10 MB/sec

/dev/sdd:

Model=SAMSUNG HD103UI , FwRev=1AA01111, SerialNo=S1PGJ1BQ800183
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
BuffType=DualPortCache, BuffSize=32767kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

* signifies the current active mode

Timing cached reads: 5180 MB in 2.00 seconds = 2590.33 MB/sec
Timing buffered disk reads: 260 MB in 3.00 seconds = 86.53 MB/sec

/dev/sde:

Model=SAMSUNG HD103UI , FwRev=1AA01111, SerialNo=S1PGJ1BQ800184
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
BuffType=DualPortCache, BuffSize=32767kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

* signifies the current active mode

Timing cached reads: 5208 MB in 2.00 seconds = 2604.35 MB/sec
Timing buffered disk reads: 256 MB in 3.00 seconds = 85.24 MB/sec

/dev/sdf:

Model=SAMSUNG HD103UI , FwRev=1AA01111, SerialNo=S1PGJ1BQ800202
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
BuffType=DualPortCache, BuffSize=32767kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-3 ATA/ATAPI-4 ATA/ATAPI-5 ATA/ATAPI-6 ATA/ATAPI-7

* signifies the current active mode

Timing cached reads: 5228 MB in 2.00 seconds = 2615.38 MB/sec
Timing buffered disk reads: 256 MB in 3.00 seconds = 85.19 MB/sec

/dev/sda:

Model=Hitachi HDS721010KLA330 , FwRev=GKAOAB0A, SerialNo= GTE005PBGDBPZL
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=31157kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1953525168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 1396 MB in 2.00 seconds = 698.36 MB/sec
Timing buffered disk reads: 250 MB in 3.02 seconds = 82.73 MB/sec

# hdparm -tT /dev/mapper/VolGroup00-LogVol00

/dev/mapper/VolGroup00-LogVol00:
Timing cached reads: 2764 MB in 2.00 seconds = 1380.83 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device
Timing buffered disk reads: 182 MB in 3.01 seconds = 60.51 MB/sec
HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate ioctl for device

i840 P3-800EBx2 512MB RDRAM

/sbin/hdparm -tiT /dev/hda

/dev/hda:

Model=ST320014A, FwRev=3.07, SerialNo=5JZB6NW7
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=39102336
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4
AdvancedPM=no WriteCache=enabled
Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5 ATA-6

Timing buffer-cache reads: 128 MB in 0.53 seconds =241.51 MB/sec
Timing buffered disk reads: 64 MB in 3.65 seconds = 17.53 MB/sec

/sbin/hdparm -tT /dev/{sd{a,b},md0}

/dev/sda:
Timing cached reads: 590 MB in 2.01 seconds = 294.15 MB/sec
Timing buffered disk reads: 104 MB in 3.02 seconds = 34.39 MB/sec

/dev/sdb:
Timing cached reads: 608 MB in 2.00 seconds = 304.07 MB/sec
Timing buffered disk reads: 104 MB in 3.06 seconds = 34.02 MB/sec

/dev/md0:
Timing cached reads: 594 MB in 2.00 seconds = 296.66 MB/sec
Timing buffered disk reads: 170 MB in 3.00 seconds = 56.65 MB/sec

3〜4年前くらい前のノート。内臓ディスク2機で1機辺りの容量120GB。
RAID0構成にしてるんだけど全然早くならんね。

i945GC Atom230 512MB DDR2-667

/sbin/hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 2096 MB in 2.00 seconds = 1047.40 MB/sec
Timing buffered disk reads: 170 MB in 3.04 seconds = 55.84 MB/sec

$ sudo /sbin/hdparm -itT /dev/sda

/dev/sda:

Model=WDC WD1500HLFS-01G6U0 , FwRev=04.04V01, SerialNo= WD-WXJ508AE0064
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=293046768
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 5852 MB in 2.00 seconds = 2932.22 MB/sec
Timing buffered disk reads: 360 MB in 3.00 seconds = 119.83 MB/sec

HITACHI_DK14FA-20

/dev/hda:
Timing cached reads: 814 MB in 2.00 seconds = 406.36 MB/sec
Timing buffered disk reads: 58 MB in 3.06 seconds = 18.95 MB/se

日立の1.8inch
udma5にて

# /sbin/hdparm -tT /dev/{sd{a,b,c,f},md0}

/dev/sda:
Timing cached reads: 1848 MB in 2.00 seconds = 924.32 MB/sec
Timing buffered disk reads: 214 MB in 3.01 seconds = 71.03 MB/sec

/dev/sdb:
Timing cached reads: 1792 MB in 2.00 seconds = 894.60 MB/sec
Timing buffered disk reads: 202 MB in 3.02 seconds = 66.96 MB/sec

/dev/sdc:
Timing cached reads: 1780 MB in 2.00 seconds = 889.24 MB/sec
Timing buffered disk reads: 202 MB in 3.01 seconds = 67.18 MB/sec

/dev/sdf:
Timing cached reads: 1780 MB in 2.00 seconds = 888.64 MB/sec
Timing buffered disk reads: 194 MB in 3.00 seconds = 64.59 MB/sec

/dev/md0:
Timing cached reads: 1784 MB in 2.00 seconds = 890.35 MB/sec
Timing buffered disk reads: 190 MB in 3.02 seconds = 62.95 MB/sec

なんか知らんけどやってみた

HDDが何だかわからんから参考にならん。
hdparm -itT してくれ。

# hdparm -itT /dev/sda

/dev/sda:

Model=Hitachi HDP725050GLA360 , FwRev=GM4OA52A, SerialNo= GEA530RE2E6LKE
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=56
BuffType=DualPortCache, BuffSize=15118kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 5394 MB in 2.00 seconds = 2698.91 MB/sec
Timing buffered disk reads: 270 MB in 3.01 seconds = 89.76 MB/sec

こんな感じで？
でもちょっとうるさくない？

>>354
ウチの P7K 500GB は極めて静かです。
そのかわり、そこまで速度は出ていなかったように思います。
マシンを一時的に撤去しているので確認できませんが。
個体差かな。

>>354
>でもちょっとうるさくない？
これは >>353 だったのね orz...

ThinkPad X40 + SiliconPower 200X 32GB CF

$ sudo /sbin/hdparm -itT /dev/sda

/dev/sda:

Model=SILICON POWER , FwRev=20080821, SerialNo=
Config={ HardSect NotMFM Fixed DTR>10Mbs }
RawCHS=16383/15/63, TrkSize=0, SectSize=576, ECCbytes=4
BuffType=DualPort, BuffSize=1kB, MaxMultSect=1, MultSect=?0?
CurCHS=16383/15/63, CurSects=15481935, LBA=yes, LBAsects=62652416
IORDY=no, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 *udma4 udma3 *udma4
AdvancedPM=yes: disabled (255)
Drive conforms to: Unspecified: ATA/ATAPI-4

* signifies the current active mode

Timing cached reads: 978 MB in 2.00 seconds = 488.33 MB/sec
Timing buffered disk reads: 122 MB in 3.01 seconds = 40.51 MB/sec

Model=WDC WD6400AAKS-22A7B0 x 2
md[01]:RAID1, md[23]:RAID0
# /sbin/hdparm -tT /dev/md[0123]
/dev/md0:
 Timing cached reads:   4360 MB in  2.00 seconds = 2179.81 MB/sec
 Timing buffered disk reads:  124 MB in  1.05 seconds = 117.89 MB/sec

/dev/md1:
 Timing cached reads:   4328 MB in  2.00 seconds = 2164.16 MB/sec
 Timing buffered disk reads:  342 MB in  3.01 seconds = 113.63 MB/sec

/dev/md2:
 Timing cached reads:   4436 MB in  2.00 seconds = 2218.32 MB/sec
 Timing buffered disk reads:  654 MB in  3.00 seconds = 217.85 MB/sec

/dev/md3:
 Timing cached reads:   4316 MB in  2.00 seconds = 2159.40 MB/sec
 Timing buffered disk reads:  646 MB in  3.01 seconds = 214.86 MB/sec

ほぼ計算とおりです。

SSD換装前

Timing cached reads: 360 MB in 2.01 seconds = 179.12 MB/sec
Timing buffered disk reads: 72 MB in 3.02 seconds = 23.83 MB/sec

SSD換装後

Timing cached reads: 354 MB in 2.01 seconds = 176.23 MB/sec
Timing buffered disk reads: 198 MB in 3.00 seconds = 65.94 MB/sec

静かだ・・・

>>359
体感速度は向上しましたか？

>>360氏

はい、向上しました。

>>360氏
まだまだ、チューニングが必要かもしれません。

# hdparm -tT /dev/{sd{a,b,c,d,e,f},md1}
/dev/sda:
Timing cached reads: 20076 MB in 1.99 seconds = 10063.61 MB/sec
Timing buffered disk reads: 376 MB in 3.01 seconds = 125.12 MB/sec
/dev/sdb:
Timing cached reads: 21944 MB in 1.99 seconds = 11001.30 MB/sec
Timing buffered disk reads: 378 MB in 3.02 seconds = 125.36 MB/sec
/dev/sdc:
Timing cached reads: 20116 MB in 2.00 seconds = 10082.27 MB/sec
Timing buffered disk reads: 376 MB in 3.00 seconds = 125.28 MB/sec
/dev/sdd:
Timing cached reads: 20992 MB in 1.99 seconds = 10522.85 MB/sec
Timing buffered disk reads: 376 MB in 3.00 seconds = 125.25 MB/sec
/dev/sde:
Timing cached reads: 19760 MB in 1.99 seconds = 9904.86 MB/sec
Timing buffered disk reads: 376 MB in 3.01 seconds = 124.96 MB/sec
/dev/sdf:
Timing cached reads: 20588 MB in 1.99 seconds = 10320.11 MB/sec
Timing buffered disk reads: 378 MB in 3.01 seconds = 125.40 MB/sec
/dev/md1:
Timing cached reads: 22024 MB in 1.99 seconds = 11042.53 MB/sec
Timing buffered disk reads: 1452 MB in 3.00 seconds = 483.54 MB/sec

HDDは15k.5の300GBx6
SAS RAIDコントローラは LSI 1068E
(っつーてもRAID機能は殺してHBAとしてlinuxのmdでRAID5を構成)

>>363のシステムドライブにOCZのMLCな60GBのSSDをゲット
さっそくCentOS5.2(x86_64)を入れてhdparm実行してみた。

# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 22780 MB in 1.99 seconds = 11423.06 MB/sec
Timing buffered disk reads: 328 MB in 3.01 seconds = 108.82 MB/sec

とりあえずsshで入れる環境まで作って今日はおしまい。

HP Mini 1000 (HDD 60GBモデル)

/dev/sda:

Model=TOSHIBA MK6028GAL , FwRev=BN101C , SerialNo= Y82RW1ZQW
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=46
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=117210240
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-3,4,5,6,7

* signifies the current active mode

Timing cached reads: 1152 MB in 2.00 seconds = 575.91 MB/sec
Timing buffered disk reads: 88 MB in 3.02 seconds = 29.12 MB/sec

/dev/sda:

Model=HDS722516VLAT20 , FwRev=V34OA6EA, SerialNo= VNR41EC4CJKL0M
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=1794kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=321670847
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a: ATA/ATAPI-2,3,4,5,6

* signifies the current active mode

Timing cached reads: 2086 MB in 2.00 seconds = 1043.12 MB/sec
Timing buffered disk reads: 168 MB in 3.00 seconds = 55.93 MB/sec

Hitachi HDP725050GLA360 x 6
Hitachi HDT725050VLA360 x 2

mdadm
md1:raid1
md2:raid10
md3:raid10
md4:raid6

# hdparm -tT /dev/md{1,2,3,4}

/dev/md1:
Timing cached reads: 4434 MB in 2.00 seconds = 2217.98 MB/sec
Timing buffered disk reads: 270 MB in 3.02 seconds = 89.35 MB/sec

/dev/md2:
Timing cached reads: 4794 MB in 2.00 seconds = 2398.63 MB/sec
Timing buffered disk reads: 1724 MB in 3.00 seconds = 574.57 MB/sec

/dev/md3:
Timing cached reads: 4602 MB in 2.00 seconds = 2301.99 MB/sec
Timing buffered disk reads: 848 MB in 3.02 seconds = 280.57 MB/sec

/dev/md4:
Timing cached reads: 3302 MB in 2.00 seconds = 1651.67 MB/sec
Timing buffered disk reads: 1034 MB in 3.01 seconds = 343.55 MB/sec

# /sbin/hdparm -tT /dev/{sd{a,d},md2}
/dev/sda:
 Timing cached reads:   4416 MB in  2.00 seconds = 2208.16 MB/sec
 Timing buffered disk reads:  220 MB in  3.00 seconds =  73.23 MB/sec

/dev/sdd:
 Timing cached reads:   4412 MB in  2.00 seconds = 2206.96 MB/sec
 Timing buffered disk reads:  368 MB in  3.01 seconds = 122.20 MB/sec

/dev/md2:
 Timing cached reads:   4368 MB in  2.00 seconds = 2183.79 MB/sec
 Timing buffered disk reads:  652 MB in  3.01 seconds = 216.83 MB/sec

起動時間はSSDが早いのう
CentOS5.2 POST > auto login > desktop
/dev/sda:Model=WD1600AAJS-19WAA0           57s
/dev/sdd:Model=SPCC Solid State DiskB20    40s
/dev/md2:Model=WD6400AAKS-22A7B0[RAID0]    46s

$ sudo /sbin/hdparm -itT /dev/sdc

/dev/sdc:

Model=Hitachi HDT721010SLA360 , FwRev=ST6OA31B, SerialNo=STF604MH0D5R9B
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=56
BuffType=DualPortCache, BuffSize=15001kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1953525168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 7406 MB in 2.00 seconds = 3705.39 MB/sec
Timing buffered disk reads: 336 MB in 3.01 seconds = 111.47 MB/sec

echo "test" > /dev/null

$ sudo /sbin/hdparm -itT /dev/sda

/dev/sda:

Model=Hitachi HDS721010KLA330 , FwRev=GKAOAB0A, SerialNo= GTE005PBGDBPZL
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=31157kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1953525168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 6220 MB in 2.00 seconds = 3111.82 MB/sec
Timing buffered disk reads: 248 MB in 3.01 seconds = 82.28 MB/sec

echo "test" > /dev/null

K8T800　Athlon64 3000+　PC3200 512MB
さすがにシングルチャネルだからか、メモリおせえな…

# hdparm -tiT /dev/sda

/dev/sda:

Model=ST340016A , FwRev=3.75 , SerialNo=3HS3J6YJ
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=?16?
(maybe): CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5

* signifies the current active mode

Timing cached reads: 894 MB in 2.00 seconds = 446.50 MB/sec
Timing buffered disk reads: 96 MB in 3.03 seconds = 31.67 MB/sec

/dev/sda:
Timing cached reads: 562 MB in 2.02 seconds = 277.61 MB/sec
Timing buffered disk reads: 70 MB in 3.05 seconds = 22.92 MB/sec

echo "test" > /dev/null

# cat /sys/block/sda/device/model
TOSHIBA THNS064G

# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 3244 MB in 2.00 seconds = 1622.84 MB/sec
Timing buffered disk reads: 676 MB in 3.01 seconds = 224.48 MB/sec

$ sudo hdparm -itT /dev/sda

/dev/sda:

Model=Hitachi HDT725032VLA360 , FwRev=V54OA73A, SerialNo= VFD200R2DALDRL
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=15315kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=625142448
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 3290 MB in 2.00 seconds = 1644.69 MB/sec
Timing buffered disk reads: 222 MB in 3.01 seconds = 73.64 MB/sec

Model=HITACHI_DK23EA-30

/dev/hda:
Timing cached reads: 386 MB in 2.00 seconds = 192.92 MB/sec
Timing buffered disk reads: 76 MB in 3.02 seconds = 25.13 MB/sec

udma5

# cat /sys/block/sda/device/model
9650SE-2LP DISK
# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 26200 MB in 1.99 seconds = 13174.04 MB/sec
Timing buffered disk reads: 320 MB in 3.01 seconds = 106.27 MB/sec

intel SSDの結果が見てみたいな
入れた香具師居ないかな

マシン１
#cat /sys/block/sda/device/model
LD 0 RAID5 349G
# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 3956 MB in 2.00 seconds = 1979.00 MB/sec
Timing buffered disk reads: 448 MB in 3.00 seconds = 149.16 MB/sec

マシン２
#cat /sys/block/sda/device/model
PERC 5/i Adapter
# hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 12696 MB in 2.00 seconds = 6354.50 MB/sec
Timing buffered disk reads: 734 MB in 3.02 seconds = 243.22 MB/sec

intel G33 Core2Duo E4400 2GB DDR2-667 WD400JD

/sbin/hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 2270 MB in 2.00 seconds = 1134.52 MB/sec
Timing buffered disk reads: 174 MB in 3.01 seconds = 57.86 MB/sec

ST380815AS

hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 2424 MB in 2.00 seconds = 1211.69 MB/sec
Timing buffered disk reads: 224 MB in 3.01 seconds = 74.44 MB/sec

test

$ cat /sys/block/sda/device/model
SAMSUNG HD502HJ
# for ((i=0;i<3;i++)) ; do /sbin/hdparm -tT /dev/sda ; done
/dev/sda:
 Timing cached reads:   5212 MB in  2.00 seconds = 2605.05 MB/sec
 Timing buffered disk reads:  434 MB in  3.00 seconds = 144.45 MB/sec

いつだかわからんが昔測ったデータ
# hdparm -itT /dev/sda

/dev/sda:

Model=WDC WD2500BEVS-00UST0 , FwRev=01.01A01, SerialNo= WD-WXE807137827
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=?0?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=268435455
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 796 MB in 2.00 seconds = 398.17 MB/sec
Timing buffered disk reads: 164 MB in 3.03 seconds = 54.14 MB/sec

同じドライブでいま測ったデータ
# hdparm -itT /dev/sda

/dev/sda:

Model=WDC, FwRev=01.01A01, SerialNo=WD-WXE807137827
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=449338050
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 2166 MB in 2.00 seconds = 1083.50 MB/sec
Timing buffered disk reads: 170 MB in 3.03 seconds = 56.06 MB/sec

なんかUDMAのモードが増えてるしcachedが3倍近く速くなってる

キャッシュはメインメモリの速度だからな

/dev/sda:

Model=INTEL, FwRev=2CV102HD, SerialNo=CVPO015203FN080JGN
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 6288 MB in 2.00 seconds = 3147.82 MB/sec
Timing buffered disk reads: 778 MB in 3.00 seconds = 259.12 MB/sec


cpuinfo
model name : Intel(R) Core(TM) i7 CPU L 620 @ 2.00GHz


Intel の SSD 80G だよん。
思えば遠くへ来たもんだ。

>>389
おおー速い
よさそうだね
起動速度も凄い？

起動はメチャ速くなりました。
要らんモジュールは削ってるけど、それでも速いです。
躊躇せず再起動できます。

まだあまり使い込んでるわけではないので、アレですけど
read は速くて write は期待したほどじゃない感じでしょうか。
tar の展開とか遅いなあって感じが、なんとなく。
ただ、これは気のせいかもしれません。
(裏で何かやってたかも)

test fencs schr?linger

2TB*6@mdadm RAID5

/dev/md0:
Timing cached reads: 14054 MB in 2.00 seconds = 7040.24 MB/sec
Timing buffered disk reads: 1684 MB in 3.01 seconds = 560.09 MB/sec

WD20EARSの667GBプラッタのほうです。

>>389 に続いて Intel X25-M

$ sudo /sbin/hdparm -itT /dev/sdj

/dev/sdj:

Model=INTEL, FwRev=2CV102HD, SerialNo=CVPO01650065080JGN
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=1
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=156301488
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 18998 MB in 2.00 seconds = 9510.80 MB/sec
Timing buffered disk reads: 806 MB in 3.01 seconds = 268.06 MB/sec

500GB プラッタ、キャッシュ 64MB の Caviar Black 1TB モデル。

$ cat /sys/block/sdg/device/model
WDC WD1002FAEX-0

$ sudo hdparm -itT /dev/sdg

/dev/sdg:

Model=WDC, FwRev=05.01D05, SerialNo=WD-WCATR2025250
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1953525168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 26398 MB in 2.00 seconds = 13214.35 MB/sec
Timing buffered disk reads: 382 MB in 3.00 seconds = 127.24 MB/sec

1.8インチのサムソンSSDです

Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: ATA Model: SAMSUNG MCCOE64G Rev: PS10
Type: Direct-Access ANSI SCSI revision: 05

~# hdparm -tT /dev/sda

/dev/sda:
Timing cached reads: 12084 MB in 1.99 seconds = 6065.87 MB/sec
Timing buffered disk reads: 328 MB in 3.01 seconds = 109.12 MB/sec

INTELに全然敵ってないな〜

>>396
というかすぐ上のHDDにすら負けているね。

>>397
さすがに >395 のは64MBキャッシュ効きまくりの結果でしょ〜
って思ってるんだけど、それともudma6ってのが効いてるの？
だとしても >386 と >387 は大差ないし・・・

SSDはシーケンシャルよりランダムがHDDよりも圧倒的だろ

そうか、そうだね、実際の使用状況ではランダムアクセス性能だよね。
ぼーっとしてた。ゴメン。

SSDならぬSDカードを/にした安物ノートPCを使用中
カード差し替えると環境をまるごと移せるから結構便利

# hdparm -tT /dev/sdb

/dev/sdb:
Timing cached reads: 1870 MB in 2.00 seconds = 935.60 MB/sec
Timing buffered disk reads: 60 MB in 3.08 seconds = 19.46 MB/sec

Intel製安ファイルサーバ＋WD30EZRS(750GB プラッタ)

$ cat /sys/block/sdb/device/model
WDC WD30EZRS-00J
$ dmesg | grep -i ich
[ 0.178597] pci 0000:00:1f.0: quirk: region 0800-087f claimed by ICH6 ACPI/GPIO/TCO
[ 0.178602] pci 0000:00:1f.0: quirk: region 0480-04bf claimed by ICH6 GPIO
$ sudo hdparm -itT /dev/sdb

/dev/sdb:

Model=WDC WD30EZRS-00J99B0 , FwRev=80.00A80, SerialNo= WD-WCAWZ0032511
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=?16?
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=5860533168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 1546 MB in 2.00 seconds = 772.95 MB/sec
Timing buffered disk reads: 344 MB in 3.01 seconds = 114.30 MB/sec

最近買い換えたノートPC
# hdparm -itT /dev/sda

/dev/sda:

Model=WDC WD6400BPVT-26HXZT1, FwRev=02.01A02, SerialNo=WD-WX21A90L0608
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=16
CurCHS=65535/1/63, CurSects=4128705, LBA=yes, LBAsects=1250263728
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 5958 MB in 2.00 seconds = 2980.72 MB/sec
Timing buffered disk reads: 254 MB in 3.02 seconds = 84.11 MB/sec

test

$ sudo hdparm -itT /dev/sda

/dev/sda:

Model=Hitachi HDT725032VLA360, FwRev=V54OA73A, SerialNo=VFD200R2DALDRL
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=15315kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=625142448
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-7 T13 1532D revision 1: ATA/ATAPI-2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 2882 MB in 2.00 seconds = 1440.68 MB/sec
Timing buffered disk reads: 222 MB in 3.01 seconds = 73.70 MB/sec

$ sudo hdparm -itT /dev/sdb

/dev/sdb:

Model=WDC WD10EADS-00L5B1, FwRev=01.01A01, SerialNo=WD-WCAU49342910
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1953525168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 2988 MB in 2.00 seconds = 1493.76 MB/sec
Timing buffered disk reads: 280 MB in 3.02 seconds = 92.78 MB/sec

sudo hdparm -itT /dev/sda #Arch Linux

/dev/sda:

Model=WDC WD10EARS-22Y5B1, FwRev=80.00A80, SerialNo=WD-WCAV5A704312
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=1953525168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 4776 MB in 2.00 seconds = 2388.39 MB/sec
Timing buffered disk reads: 330 MB in 3.01 seconds = 109.63 MB/sec

sudo hdparm -itT /dev/hda

/dev/hda:

Model=CF Card, FwRev=Ver6.00, SerialNo=D5E00708106C00000677
Config={ HardSect NotMFM Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=32256, SectSize=512, ECCbytes=4
BuffType=DualPort, BuffSize=1kB, MaxMultSect=1, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=31227840
IORDY=yes, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 udma6
AdvancedPM=no WriteCache=disabled
Drive conforms to: Unspecified: ATA/ATAPI-4,5

* signifies the current active mode

Timing cached reads: 1522 MB in 2.00 seconds = 760.95 MB/sec
Timing buffered disk reads: 194 MB in 3.01 seconds = 64.47 MB/sec

hdparm -itT /dev/sdc

/dev/sdc:

Model=WDC WD20EARS-00MVWB0, FwRev=51.0AB51, SerialNo=WD-WMAZA3948940
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=50
BuffType=unknown, BuffSize=unknown, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=3907029168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=no WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5,6,7

* signifies the current active mode

Timing cached reads: 2962 MB in 2.00 seconds = 1480.98 MB/sec
Timing buffered disk reads: 358 MB in 3.01 seconds = 118.98 MB/sec

ちなみに>>409はeSATA接続です。

Timing cached reads: 538 MB in 2.00 seconds = 268.71 MB/sec
Timing buffered disk reads: 116 MB in 3.03 seconds = 38.32 MB/sec

どうなの？

Intel X25-E 4台のraid0
/dev/md0:
Timing cached reads: 26748 MB in 2.00 seconds = 13403.41 MB/sec
Timing buffered disk reads: 1284 MB in 3.00 seconds = 427.86 MB/sec

オンボのSATAコントローラがPCI接続だったでござる orz

# hdparm -itT /dev/sda

/dev/sda:

Model=SPCC, FwRev=100730, SerialNo=0000000000000000005F
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=62533296
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: Unspecified: ATA/ATAPI-4,5,6,7

* signifies the current active mode

Timing cached reads: 2068 MB in 2.00 seconds = 1034.34 MB/sec
Timing buffered disk reads: 222 MB in 3.01 seconds = 73.74 MB/sec