disk problems or false alarm??
guolin at alexa.com
Fri Apr 30 23:31:15 UTC 2004
> Be aware, that idebus does not mean UDMA speed (like UDMA33 or
> or the speed in MB/sec. On actual PC architecture the 32bit PCI bus is
> rated at 33 MHz as well the IDE bus. So setting idebus to anything
> than the default of 33 is nonsense.
Then that means for normal ia-32 machines, the PCI&IDE Bus speed is
mostly 33MHz/s, and so the sustainable IDE disk access speed is always
no more than about 33MB/s? I tried several types of Linux boxes, the
long-time disk access is about no more than 35MB/s.
And there are no other means to accelerate disk access speed? Manuauly
setting IDE disk's access mode (UDMA2/3/4/5/6) with hdparm has no big
difference, as far as from my own experience.
Any other ideas, besides buy ia-64 hosts? Thanks.
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