I'm using jaunty 64 bit. Unfortunately I've install a mainline kernel Linux xxx-desktop 2.6.29-02062906-generic #02062906 SMP Fri Jul 3 10:17:03 UTC 2009 x86_64 GNU/Linux but speed problem persists. Speed transfer between hard disks below 5Mb/sec.
Below hard disks info.
/dev/sda:
Model=SAMSUNG SP2504C , FwRev=VT100-50, SerialNo=S09QJ1PP321450 Config={ Fixed } RawCHS=16383/16/63, TrkSize=34902, SectSize=554, ECCbytes=4 BuffType=DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=?0? CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=488397168 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: unknown: ATA/ATAPI-1,2,3,4,5,6,7
* signifies the current active mode -------------------------------------------------------------------------------------------------- /dev/sdb:
Model=SAMSUNG HD753LJ , FwRev=1AA01113, SerialNo=S13UJDWQ801281 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=1465149168 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-3,4,5,6,7
* signifies the current active mode
Singular Hard disk performance is standard/ sudo hdparm -tT /dev/sda
/dev/sda: Timing cached reads: 3872 MB in 2.00 seconds = 1936.29 MB/sec Timing buffered disk reads: 194 MB in 3.01 seconds = 64.54 MB/sec
/dev/sdb: Timing cached reads: 5664 MB in 2.00 seconds = 2833.85 MB/sec Timing buffered disk reads: 286 MB in 3.02 seconds = 94.67 MB/sec
I'm using jaunty 64 bit. 02062906- generic #02062906 SMP Fri Jul 3 10:17:03 UTC 2009 x86_64 GNU/Linux
Unfortunately I've install a mainline kernel
Linux xxx-desktop 2.6.29-
but speed problem persists. Speed transfer between hard disks below 5Mb/sec.
Below hard disks info.
/dev/sda:
Model=SAMSUNG SP2504C , FwRev=VT100-50, SerialNo= S09QJ1PP321450 16383/16/ 63, TrkSize=34902, SectSize=554, ECCbytes=4 DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=?0? 16383/16/ 63, CurSects=16514064, LBA=yes, LBAsects=488397168 120,w/IORDY: 120}, tDMA={min: 120,rec: 120} 1,2,3,4, 5,6,7
Config={ Fixed }
RawCHS=
BuffType=
CurCHS=
IORDY=on/off, tPIO={min:
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: unknown: ATA/ATAPI-
* signifies the current active mode ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- ------- -------
-------
/dev/sdb:
Model=SAMSUNG HD753LJ , FwRev=1AA01113, SerialNo= S13UJDWQ801281 16383/16/ 63, TrkSize=34902, SectSize=554, ECCbytes=4 DualPortCache, BuffSize=32767kB, MaxMultSect=16, MultSect=?0? 16383/16/ 63, CurSects=16514064, LBA=yes, LBAsects=1465149168 120,w/IORDY: 120}, tDMA={min: 120,rec: 120}
Config={ Fixed }
RawCHS=
BuffType=
CurCHS=
IORDY=on/off, tPIO={min:
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-3,4,5,6,7
* signifies the current active mode
Singular Hard disk performance is standard/
sudo hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 3872 MB in 2.00 seconds = 1936.29 MB/sec
Timing buffered disk reads: 194 MB in 3.01 seconds = 64.54 MB/sec
/dev/sdb:
Timing cached reads: 5664 MB in 2.00 seconds = 2833.85 MB/sec
Timing buffered disk reads: 286 MB in 3.02 seconds = 94.67 MB/sec