-
When I us hdparm -v /dev/hd? I get this
/dev/hda:
Model=IC35L040AVVN07-0, FwRev=VA2OAF0C, SerialNo=VNP210B2GTKD0B
Config={ HardSect NotMFM HdSw15uSec Fixed DTR10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=52
BuffType=DualPortCache, BuffSize=1863kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=80416127
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
AdvancedPM=yes: disabled (255) WriteCache=enabled
Drive conforms to: ATA/ATAPI-5 T13 1321D revision 1:
* signifies the current active mode
/dev/hdb:
Model=CB511D ATAPI COMBO, FwRev=VER 13SA, SerialNo=
Config={ Fixed Removeable DTR=5Mbs DTR10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=0kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
IORDY=yes, tPIO={min:227,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=no
* signifies the current active mode
/dev/hdc:
Model=WDC WD1600JB-00GVA0, FwRev=08.02D08, SerialNo=WD-WCAL92351843
Config={ HardSect NotMFM HdSw15uSec SpinMotCtl Fixed DTR5Mbs FmtGapReq }
RawCHS=16383/16/63, TrkSize=57600, SectSize=600, ECCbytes=74
BuffType=DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=16
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=no WriteCache=enabled
Drive conforms to: device does not report version:
* signifies the current active mode
-
And also this
/dev/hda:
multcount= 16 (on)
IO_support = 0 (default 16-bit)
unmaskirq= 0 (off)
using_dma= 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead= 256 (on)
geometry = 65535/16/63, sectors = 41173057024, start = 0
/dev/hdb:
IO_support = 0 (default 16-bit)
unmaskirq= 0 (off)
using_dma= 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead= 256 (on)
/dev/hdc:
multcount= 16 (on)
IO_support = 0 (default 16-bit)
unmaskirq= 0 (off)
using_dma= 0 (off)
keepsettings = 0 (off)
readonly = 0 (off)
readahead= 256 (on)
geometry = 19457/255/63, sectors = 160040803840, start = 0
-
As can be seen I do not have DMA enabled. But I think UDMA is enabled??? I know
from reading all the stuff on mythtv that DMA is needed for mythtv to work
well. After searching for this on the internet I found the command hdparm -d1
/dev/hd? Which should enable dma access. But this does not work. I get an error
stating
HID0_SET_DMA failed: Operation not permitted
I am running the command as root.
-
I also ran hdparm -tT /dev/hd? And I get this
/dev/hda:
Timing cached reads: 1852 MB in 2.00 seconds = 924.29 MB/sec
Timing buffered disk reads:8 MB in 3.36 seconds = 2.38 MB/sec
/dev/hdb:
Timing buffered disk reads:
/dev/hdc:
Timing cached reads: 1840 MB in 2.00 seconds = 920.14 MB/sec
Timing buffered disk reads:8 MB in 3.18 seconds = 2.51 MB/sec
Again from reading on the net the buffered disk reads are bad. Is this correct?
Anyway, I have recompiled the Kernel (which is 2.6.9 do to the custom driver
for the DVICO card) to support the IDE controller and this did not make any
difference. I am using a Gigabit mother board model GA-8S661FXM-775 with a p4
on it. A pretty quick machine for this task.
So any suggestions on what to try next?
Thanks in advance for any help.
Regards,
Robert McRostie.
___
mythtv-users mailing list
mythtv-users@mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
