-Phil
On 10/13/05, Steve Adeff <[EMAIL PROTECTED]> wrote:
On Thursday 13 October 2005 13:58, Kirk Bocek wrote:
> I ran this on kernel 2.6.13.2. So I'm not so sure it's a kernel issue.
>
> Kirk
>
> Steve Adeff wrote:
> > On Thursday 13 October 2005 13:13, Kirk Bocek wrote:
> >>I've used hdparm -Tt on all sorts of non-IDE devices: flash-memory
> >> drives, Raid devices, RAM drives. It's never been a problem.
> >>
> >>Kirk
> >>
> >>Steve Adeff wrote:
> >>>On Thursday 13 October 2005 12:50, Kirk Bocek wrote:
> >>>>Here's the output on my SATA drive:
> >>>>
> >>>># hdparm -Tt /dev/sda
> >>>>
> >>>>/dev/sda:
> >>>> Timing cached reads: 3832 MB in 2.00 seconds = 1915.88 MB/sec
> >>>>HDIO_DRIVE_CMD(null) (wait for flush complete) failed: Inappropriate
> >>>>ioctl for device Timing buffered disk reads: 184 MB in 3.02 seconds =
> >>>>60.84 MB/sec HDIO_DRIVE_CMD(null) (wait for flush complete) failed:
> >>>>Inappropriate ioctl for device
> >>>>
> >>>>So it fails on some sort of IO command but still runs the benchmark.
> >>>>
> >>>>Kirk
> >>>
> >>>those IO errors are normal as hdparm is designed for IDE while the SATA
> >>>drivers treat SATA as a SCSI device. from your numbers though, DMA is
> >>>definitely on.
> >>>
> >>>Steve
> >
> > Well, yes, but the older SATA drivers didn't have a complete command set.
> > I used to get the same error on my SATA drives but with the 2.6.13 kernel
> > i don't. Nothing to worry about though, and as I said, "DMA" is
> > definitely on (not that SATA does the whole DMA thing like PATA does).
> >
> > Steve
quite strange, don't know what to say, so I'll bow out of this thread...
--
Steve
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--
Phil Strong
Synergetic Data Systems
(w) 240 793 6565
[EMAIL PROTECTED]
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