Wilson Yau <[EMAIL PROTECTED]> wrote:
> hde: IBM-DJNA-371800, 17206MB w/1966kB Cache, CHS=34960/16/63
> hdf: IBM-DPTA-372050, 19574MB w/1961kB Cache, CHS=39770/16/63
hde: IBM-DJNA-370910, 8693MB w/1966kB Cache, CHS=17662/16/63, UDMA(66)
The above is what I got for my DJNA connected to HPT366. So
Wilson Yau <[EMAIL PROTECTED]> wrote:
> Does anyone know how hdparm works? How accurate (in what sense) does
> the figure reflect the performance (esp data read-write access rate) of
> a tested hard drive?
Not very much accurate I suppose. For me it works more or less
like bogomips: just a numbe
Chuan-kai Lin wrote:
>
> Wilson Yau <[EMAIL PROTECTED]> wrote:
> > Q.1/ Can anyone explain to me this phenomenon?
>
> It seems likely that the HPT366 is operating with DMA (not just
> UDMA/66, but all kinds of DMA operations) disabled. Could you
> show us the boot messages concerning the HPT366
> I question the utility of the hdparm performance. This doesn't
appear to be random
> reads.
Good point!
Does anyone know how hdparm works? How accurate (in what sense) does
the figure reflect the performance (esp data read-write access rate) of
a tested hard drive?
Wilson Yau <[EMAIL PROTECTED]> wrote:
> Q.1/ Can anyone explain to me this phenomenon?
It seems likely that the HPT366 is operating with DMA (not just
UDMA/66, but all kinds of DMA operations) disabled. Could you
show us the boot messages concerning the HPT366 controller?
> Q.2/ How to optimize
I know this isn't helpful, but here is some additional information. I have
a P233 with a non-UDMA66 45GB hard drive. I get about 12MB/s. I question
the utility of the hdparm performance. This doesn't appear to be random
reads. Either way, I get much better performance with Storm (based on
debi
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