Yes, DMA is enabled on all drives:
[12:50:51][root@david:/home/david]# hdparm -i /dev/hda
/dev/hda:
Model=Maxtor 6E040L0, FwRev=NAR61590, SerialNo=E10RVGWE
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=80293248
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
[12:50:56][root@david:/home/david]# hdparm -i /dev/hdc
/dev/hdc:
Model=Pioneer DVD-ROM ATAPIModel DVD-106S 011, FwRev=E1.14, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=13395, BuffSize=64kB, MaxMultSect=0
(maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
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 udma0 udma1 *udma2 udma3
udma4
AdvancedPM=no
Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5
[12:51:32][root@david:/home/david]# hdparm -i /dev/hdd
/dev/hdd:
Model=LITE-ON LTR-24102B, FwRev=5S54, SerialNo=
Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs 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 udma0 udma1 *udma2
AdvancedPM=no
I'm running 2.4.19, though, I've had this problem with 2.4.17 as well.
On Tue, 2002-11-26 at 10:21, Len Sorensen wrote:
> Have you checked if dma is enabled? It could help a lot (both on the HD
> and on the cd burner). Other times apparently dma on the cd burner is
> bad and ust on the hd is good. You probably need a 2.4 kernel to get
> dma support on that chipset. I have seen some comments about never
> using anything other than HDs on a promise controller, although I
> haven't seen any info about why that is the recomendation.
>
> uname -a: gives your kernel version
> cat /proc/ide/hd?/settings: gives current, min and max settings for each
> ide device.
>
> Len Sorensen
>
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