Did you do it specifiying both flags at the same time?
What -Xxx value did you use?
First query your drive with "hdparm -i /dev/hda" to
see what modes your drive support.
>From the hdparm man page:
...
-X Set the IDE transfer mode for newer
(E)IDE/ATA2
drives. This is typically used in
combination with
-d1 when enabling DMA to/from a drive
on a sup<AD>
ported interface chipset (such as the
Intel 430FX
Triton), where -X34 is used to select
multiword DMA
mode2 transfers. With systems which
support Ultra<AD>
DMA burst timings, -X66 is used to
select UltraDMA
mode2 transfers (you'll need to prepare
the chipset
for UltraDMA beforehand). Apart from
that, use of
this flag is seldom necessary since
most/all modern
IDE drives default to their fastest
PIO transfer
mode at power-on. Fiddling with this
can be both
needless and risky. On drives which
support alter<AD>
nate transfer modes, -X can be used to
switch the
mode of the drive only. Prior to
changing the
transfer mode, the IDE interface should
be jumpered
or programmed (see -p flag) for the new
mode set<AD>
ting to prevent loss and/or
corruption of data.
Use this with extreme caution! For the
PIO (Pro<AD>
grammed Input/Output) transfer modes
used by Linux,
this value is simply the desired PIO
mode number
plus 8. Thus, a value of 09 sets
PIO mode1, 10
enables PIO mode2, and 11 selects PIO
mode3. Set<AD>
ting 00 restores the drive's
"default" PIO mode,
and 01 disables IORDY. For multiword
DMA, the
value used is the desired DMA mode
number plus 32.
for UltraDMA, the value is the
desired UltraDMA
mode number plus 64.
...
It says that most modern drives default to the fastest
mode; he, he, he, I had always have to use hdparm to
get an average of only *twice* the default performance
with all the drives I have ever had. ;-)
--- Pixel <[EMAIL PROTECTED]> wrote:
> "bobby dowling" <[EMAIL PROTECTED]> writes:
>
> > What do you mean the -d flag without the -X flags?
> >
> > So, you can say -dX and those WD drives that froze
> the system before would
> > work?
>
> nope, froze anyway here :(
>
=====
________________________
Eugenio Diaz, BSEE/BSCE
Linux Engineer
[EMAIL PROTECTED]
__________________________________________________
Do You Yahoo!?
Send instant messages with Yahoo! Messenger.
http://im.yahoo.com/
