vediamo chi ce l'ha più veloce (l'hard disk)!

[mingotta]

FAcciamo un sondaggio per vedere chi ce l'ha più veloce?
Date il comando hdparm -Tt /dev/hda > /dev/null ; hdparm -Tt /dev/hda ; hdparm -i /dev/hda e riportate il Timing buffered disk reads di ogni hard disk che avete. Poi date un voto per ogni hard disk.

root@gentoo:~ # hdparm -Tt /dev/hda > /dev/null ; hdparm -Tt /dev/hda ; hdparm -i /dev/hda

/dev/hda:
 Timing buffer-cache reads:   1224 MB in  2.00 seconds = 612.00 MB/sec
 Timing buffered disk reads:   52 MB in  3.01 seconds =  17.28 MB/sec

/dev/hda:

 Model=Maxtor 6Y060L0, FwRev=YAR41VW0, SerialNo=Y297RJRE
 Config={ Fixed }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=off
 CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=120103200
 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: (null):

 * signifies the current active mode

Questo è uno dei miei hard disk. E' un Maxtor con il veccho firmware YAR41VW0. Ho sentito dire che è lento per il firmware buggato. Infatti le prestazioni fanno piangere.

Poi il mio secondo HD:

root@gentoo:~ # hdparm -Tt /dev/hdc > /dev/null ; hdparm -Tt /dev/hdc ; hdparm -i /dev/hdc

/dev/hdc:
 Timing buffer-cache reads:   1128 MB in  2.00 seconds = 565.41 MB/sec
 Timing buffered disk reads:  102 MB in  3.06 seconds =  33.28 MB/sec

/dev/hdc:

 Model=QUANTUM FIREBALLP AS40.0, FwRev=A1Y.1500, SerialNo=794108871524
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4
 BuffType=DualPortCache, BuffSize=1902kB, MaxMultSect=16, MultSect=off
 CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=78177792
 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=no WriteCache=enabled
 Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1:

 * signifies the current active mode

Questo va meglio, nonostante sia più vecchio e meno capiente. Ma il mio gioiellino è il mio terzo HD, su un altro PC!

root@ipcop:~ # hdparm -Tt /dev/hda > /dev/null ; hdparm -Tt /dev/hda ; hdparm -i /dev/hda

/dev/hda:
 Timing buffer-cache reads:   128 MB in  0.70 seconds =182.86 MB/sec
 Timing buffered disk reads:  64 MB in  1.25 seconds = 51.20 MB/sec

/dev/hda:

 Model=Maxtor 6Y120L0, FwRev=YAR41BW0, SerialNo=Y3JWKB4E
 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=-66060037, LBA=yes, LBAsects=240121728
 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 udma0 udma1 udma2 udma3 *udma4 udma5 udma6
 AdvancedPM=yes: disabled (255)
 Drive Supports : ataATA-1 ATA-2 ATA-3 ATA-4 ATA-5 ATA-6 ATA-7

[Cimi]

53Mb e mezzo e considerate che è in cascata all'hd con l'so, quindi la velocità è ridotta e sto ascoltanto musica e palle varie... e ha solo 2 mega di cache!!!

[VICIUS]

ecco i miei result.:

caspar:/home/pigaz# hdparm -Tt /dev/hdg > /dev/null ; hdparm -Tt /dev/hdg ; hdparm -i /dev/hdg

/dev/hdg:
 Timing buffer-cache reads:   996 MB in  2.00 seconds = 497.33 MB/sec
 Timing buffered disk reads:  102 MB in  3.04 seconds =  33.50 MB/sec

/dev/hdg:

 Model=QUANTUM FIREBALLP AS40.0, FwRev=A1Y.1500, SerialNo=794161670255
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4
 BuffType=DualPortCache, BuffSize=1902kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78177792
 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=no WriteCache=enabled
 Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1:

 * signifies the current active mode

caspar:/home/pigaz# hdparm -Tt /dev/hde > /dev/null ; hdparm -Tt /dev/hde ; hdparm -i /dev/hde

/dev/hde:
 Timing buffer-cache reads:   996 MB in  2.01 seconds = 496.59 MB/sec
 Timing buffered disk reads:   60 MB in  3.02 seconds =  19.90 MB/sec

/dev/hde:

 Model=Maxtor 6Y060L0, FwRev=YAR41BW0, SerialNo=Y2TF38KE
 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=120103200
 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: (null):

 * signifies the current active mode

ciao

[NA01]

slack 9.1 su 2.6, rebooto sul 2.4.23 e vediamo quale và più veloce

/dev/hda:
 Timing buffer-cache reads:   1300 MB in  2.00 seconds = 648.80 MB/sec
 Timing buffered disk reads:  108 MB in  3.06 seconds =  35.35 MB/sec

/dev/hda:

 Model=IBM-DTLA-307030, FwRev=TX4OA6AA, SerialNo=YKEYKMQ5915
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
 BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=60036480
 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: disabled (255) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1: 

 * signifies the current active mode

[NA01]

ed ecco il 2.4.23!

/dev/hda:
 Timing buffer-cache reads:   1276 MB in  2.00 seconds = 638.00 MB/sec
 Timing buffered disk reads:  104 MB in  3.01 seconds =  34.55 MB/sec

/dev/hda:

 Model=IBM-DTLA-307030, FwRev=TX4OA6AA, SerialNo=YKEYKMQ5915
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
 BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=60036480
 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: disabled (255) WriteCache=enabled
 Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1: 

 * signifies the current active mode

vince il 2.6 (se vi interessasse non è compilato come preemptible)

ciiiiiiiiiiiiaaaaaaaaaaaaaaaaaaaaaooooooooooooooooooooooo!

[VICIUS]

a me interesa sta storia del firmware buggato. sembra che anche il mio hd primario abbia la tua stessa versione. c'è modo di rimediare. magari aggiornando il firmware stesso.

ciao

[HenryTheFirst]

refosco:~# hdparm -Tt /dev/hda > /dev/null ; hdparm -Tt /dev/hda ; hdparm -i /dev/hda

/dev/hda:
Timing buffer-cache reads: 996 MB in 2.00 seconds = 498.08 MB/sec
Timing buffered disk reads: 104 MB in 3.08 seconds = 33.76 MB/sec

/dev/hda:

Model=IC35L040AVER07-0, FwRev=ER4OA44A, SerialNo=SXPTXT14954
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=40
BuffType=DualPortCache, BuffSize=1916kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=80418240
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: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1:

* signifies the current active mode

[lamalta]

/dev/hda:
Timing buffer-cache reads: 1412 MB in 2.00 seconds = 705.65 MB/sec
Timing buffered disk reads: 172 MB in 3.03 seconds = 56.71 MB/sec

/dev/hda:

Model=HDS722580VLAT20, FwRev=V32OA60A, SerialNo=VNR21EC2R0SJ9L
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=160836480
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: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a:

***

/dev/hdc:
Timing buffer-cache reads: 1416 MB in 2.00 seconds = 707.65 MB/sec
Timing buffered disk reads: 174 MB in 3.02 seconds = 57.56 MB/sec

/dev/hdc:

Model=HDS722580VLAT20, FwRev=V32OA60A, SerialNo=VNR21EC2R0P9DL
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=160836480
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: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a:

[#!/bin/sh]

Eccomi qua. Primo disco:

PESSIMISMO root # hdparm -Tt /dev/hda > /dev/null ; hdparm -Tt /dev/hda ; hdparm -i /dev/hda

/dev/hda:
Timing buffer-cache reads: 1816 MB in 2.00 seconds = 908.00 MB/sec
Timing buffered disk reads: 152 MB in 3.03 seconds = 50.17 MB/sec

/dev/hda:

Model=Maxtor 6Y080P0, FwRev=YAR41BW0, SerialNo=Y3J1M4FE
Config={ Fixed }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57
BuffType=DualPortCache, BuffSize=7936kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=160086528
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: (null):

Secondo disco:

PESSIMISMO root # hdparm -Tt /dev/hdb > /dev/null ; hdparm -Tt /dev/hdb ; hdparm -i /dev/hdb

/dev/hdb:
Timing buffer-cache reads: 1812 MB in 2.00 seconds = 906.00 MB/sec
Timing buffered disk reads: 122 MB in 3.02 seconds = 40.40 MB/sec

/dev/hdb:

Model=MAXTOR 6L040J2, FwRev=AR1.0400, SerialNo=662134942322
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4
BuffType=DualPortCache, BuffSize=1818kB, MaxMultSect=16, MultSect=16
CurCHS=4047/16/255, CurSects=16511760, LBA=yes, LBAsects=78177792
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=no WriteCache=enabled
Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1:

* signifies the current active mode

[NightStalker]

-----------------------------------------------------------------------------------
/dev/hda:
Timing buffer-cache reads: 360 MB in 2.01 seconds = 179.10 MB/sec
Timing buffered disk reads: 30 MB in 3.14 seconds = 9.55 MB/sec

/dev/hda:

Model=SAMSUNG VG34323A (4.32GB), FwRev=HU101, SerialNo=STc8816173ffffffc9b2
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=14896/9/63, TrkSize=32256, SectSize=512, ECCbytes=4
BuffType=DualPortCache, BuffSize=496kB, MaxMultSect=16, MultSect=16
CurCHS=14896/9/63, CurSects=8446032, LBA=yes, LBAsects=8446032
IORDY=on/off, tPIO={min:120,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
AdvancedPM=no
Drive conforms to: device does not report version: 1 2 3

* signifies the current active mode

-----------------------------------------------------------------------------------


bello eh?


PS: ovviamente l'ho messo per partecipare al censimento "hard disk più lento" ; cmq ci son affezionato a sto Samsung da 4 gb ormai, ce l'ho dal '98 e mai un intoppo


PPS: Fedora Core 1 su celeron 433 + 192 mb di ram pc100 + 3dfx Voodoo 3 2000 + Creative SB 128 PCI + hda Samsung 4,3 gb + hdb lettore cd LG 16X + hdc Fujitsu 2,5 gb

insomma un mostro

[michele.t]

questo è il WD raptor da 36G (sata)

/dev/sda:
 Timing buffer-cache reads:   3692 MB in  2.00 seconds = 1846.28 MB/sec
 Timing buffered disk reads:  164 MB in  3.03 seconds =  54.17 MB/sec
 
/dev/sda:
 operation not supported on SCSI disks

questo è il maxtor da 250G (sata)

 
/dev/sdb:
 Timing buffer-cache reads:   3668 MB in  2.00 seconds = 1834.28 MB/sec
 Timing buffered disk reads:  170 MB in  3.01 seconds =  56.51 MB/sec
 
/dev/sdb:
 operation not supported on SCSI disks

cmq la differenza ad occhio della velocità di trasferimento è nettamente spostata verso il raptor, che si dimostra velocissimo in tutti i tipi di trasferimento....

qui sembra che sia il maxtor il pià veloce....

[mingotta]

Cavoli, hdparm non trova le info sugli hd sata! Hai provato con hdparm -I?

[michele.t]

Originariamente inviato da mingotta
Cavoli, hdparm non trova le info sugli hd sata! Hai provato con hdparm -I?

root@redrobot michele # hdparm -I /dev/sda
 
/dev/sda:
 operation not supported on SCSI disks

[DjMix]

neo:/home/djmix# hdparm -Tt /dev/hda

/dev/hda:
Timing buffer-cache reads: 1132 MB in 2.00 seconds = 564.67 MB/sec
Timing buffered disk reads: 120 MB in 3.02 seconds = 39.73 MB/sec
neo:/home/djmix# hdparm -Tt /dev/hda


neo:/home/djmix# hdparm -I /dev/hda

/dev/hda:

ATA device, with non-removable media
Model Number: MAXTOR 6L020J1
Serial Number: 661129534936
Firmware Revision: A93.0500
Standards:
Used: ATA/ATAPI-5 T13 1321D revision 1
Supported: 5 4 3 2 & some of 6
Configuration:
Logical max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 40132503
device size with M = 1024*1024: 19595 MBytes
device size with M = 1000*1000: 20547 MBytes (20 GB)
Capabilities:
LBA, IORDY(can be disabled)
bytes avail on r/w long: 4 Queue depth: 1
Standby timer values: spec'd by Vendor, no device specific minimum
R/W multiple sector transfer: Max = 16 Current = 0
Recommended acoustic management value: 128, current value: 128
DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 udma6
Cycle time: min=120ns recommended=120ns
PIO: pio0 pio1 pio2 pio3 pio4
Cycle time: no flow control=120ns IORDY flow control=120ns
Commands/features:
Enabled Supported:
* READ BUFFER cmd
* WRITE BUFFER cmd
* Host Protected Area feature set
* Look-ahead
* Write cache
* Power Management feature set
Security Mode feature set
* SMART feature set
* Mandatory FLUSH CACHE command
* Device Configuration Overlay feature set
* Automatic Acoustic Management feature set
SET MAX security extension
* DOWNLOAD MICROCODE cmd
* SMART self-test
* SMART error logging
Security:
Master password revision code = 65534
supported
not enabled
not locked
not frozen
not expired: security count
not supported: enhanced erase
10min for SECURITY ERASE UNIT.
HW reset results:
CBLID- above Vih
Device num = 0 determined by the jumper
Checksum: correct


Hehe il mio vetusto Maxtor da 20GB si fa sentire eh

[Jøhñ Ðøë]

waste-bin root $ hdparm -Tt /dev/sda > /dev/null ; hdparm -Tt /dev/sda  

/dev/sda:
 Timing buffer-cache reads:   1732 MB in  2.00 seconds = 865.70 MB/sec
 Timing buffered disk reads:  158 MB in  3.00 seconds =  52.66 MB/sec
waste-bin root $ hdparm -Tt /dev/sdb > /dev/null ; hdparm -Tt /dev/sdb  

/dev/sdb:
 Timing buffer-cache reads:   1740 MB in  2.00 seconds = 867.96 MB/sec
 Timing buffered disk reads:  152 MB in  3.03 seconds =  50.24 MB/sec
waste-bin root $ hdparm -Tt /dev/md/0 > /dev/null ; hdparm -Tt /dev/md/0  

 /dev/md/0:
 Timing buffer-cache reads:   1728 MB in  2.00 seconds = 861.98 MB/sec
 Timing buffered disk reads:  304 MB in  3.01 seconds = 101.11 MB/sec

Md0 è il raid sw di linux tra sda3 e sdb3.
C'è anche md1,md2 e ovviamente danno gli stessi risultati.
John

[Jøhñ Ðøë]

Originariamente inviato da michele.t

cmq la differenza ad occhio della velocità di trasferimento è nettamente spostata verso il raptor, che si dimostra velocissimo in tutti i tipi di trasferimento....

qui sembra che sia il maxtor il pià veloce....

si, da sto post sembra anche che i dischi ata vadan di più a volte sia dei miei scsi che dei raptor. Poi nell'utilizzo, non c'è paragone
Ho avuto modo di provare un raptor e effettivamente va quanto un U160, forse un pochino meno sotto molte operazioni su piccoli file contemporanee, cosa dovuta ad un tempo si accesso più alto. Veramente un bel disco...
John

[mingotta]

Originariamente inviato da Jøhñ Ðøë

 /dev/md/0:
 Timing buffer-cache reads:   1728 MB in  2.00 seconds = 861.98 MB/sec
 Timing buffered disk reads:  304 MB in  3.01 seconds = 101.11 MB/sec

Azzo! Mi viene voglia di farmi un hd uguale e farmi il RAID! Ma si sente la differenza di prestazioni nell'utilizzo? Se si in quali applicazioni? Lo usi come desktop o come server?

[Dun]

Malessere:/# hdparm -Tt /dev/md0 > /dev/null ; hdparm -Tt /dev/md0 ; hdparm -i /dev/md0

/dev/md0:
 Timing buffer-cache reads:   128 MB in  0.98 seconds =130.61 MB/sec
 Timing buffered disk reads:  64 MB in  2.36 seconds = 27.12 MB/sec

/dev/md0:
 operation not supported on SCSI disks
Malessere:/# hdparm -Tt /dev/hda > /dev/null ; hdparm -Tt /dev/hda ; hdparm -i /dev/hda

/dev/hda:
 Timing buffer-cache reads:   128 MB in  0.98 seconds =130.61 MB/sec
 Timing buffered disk reads:  64 MB in  1.41 seconds = 45.39 MB/sec

/dev/hda:

 Model=Maxtor 6E030L0, FwRev=NAR61590, SerialNo=E1H7MFYE
 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=60058656
 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 udma0 udma1 udma2 udma3 udma4 *udma5 udma6 
 AdvancedPM=yes: disabled (255) WriteCache=enabled
 Drive Supports : ataATA-1 ATA-2 ATA-3 ATA-4 ATA-5 ATA-6 ATA-7 

Malessere:/# hdparm -Tt /dev/hdc > /dev/null ; hdparm -Tt /dev/hdc ; hdparm -i /dev/hdc

/dev/hdc:
 Timing buffer-cache reads:   128 MB in  0.97 seconds =131.96 MB/sec
 Timing buffered disk reads:  64 MB in  2.67 seconds = 23.97 MB/sec

/dev/hdc:

 Model=SAMSUNG SV2042H, FwRev=PK100-23, SerialNo=0273J1ER626448
 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
 RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4
 BuffType=DualPortCache, BuffSize=426kB, MaxMultSect=16, MultSect=16
 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=39865392
 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 udma0 udma1 udma2 udma3 udma4 *udma5 
 AdvancedPM=no WriteCache=enabled
 Drive Supports : ATA/ATAPI-4 T13 1153D revision 17 : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5 ATA-6 

Malessere:/#

Raid 1

Il samsung da 20 GB raiddato con una partizione del Maxtor 30 GB

[mingotta]

Perchè mirroring? Non è meglio lo striping? Voglio dire, hai veramente bisogno del mirroring? Come abbiamo visto con John Doe, lo striping dà prestazioni da paura: la velocità è esattamente il doppio!

[Dun]

Originariamente inviato da mingotta
Perchè mirroring? Non è meglio lo striping? Voglio dire, hai veramente bisogno del mirroring? Come abbiamo visto con John Doe, lo striping dà prestazioni da paura: la velocità è esattamente il doppio!

E' il server