On Sunday 19 November 2000 06:29 am, skidley wrote:
> I am just wondering about the -a128 setting, mine is at 8
> automatically I have a Western Digital AC313000R my MB has a maximum
> of udma mode 2 but my drive can support udma3(ata/66). I am thinking
> about setting up these options hdparm -m16 -c1 -d1 -X66(It says for
> ultraDMA its the mode(2) +64)
Don't use '-X66'. Your motherboard needs to support ata/66 (or have
a /66 controller card), you need to use a special 80 wire ata/66 cable,
and you can't have non-ata/66 drives on the same ide, in order to use
X66.
but I am wondering about the -a option,
> maybe I should leave it at 8?
You just have to experiment. Somone with exactly the same HDD as
you, configured the same (eg, ide*, slave/master), might get better
results from hdparm settings that differ from yours.
also the -u option. It says in man it
> could be dangerous, some drive/controller combinations can't tolerate
> the increeased I/O latencies.
That example line was for my WD AC38400L. If you're not
comfortable with using -a or -u, then don't.
Just wondering what you think about the
> settings and to get some feedback before i do anything that may
> corrupt my filesystem.
Start with -c1 -d1, turns on 32 bit and DMA. That's where you'll
prob'ly see the biggest performance increase. You can't use -X66,
so the next settings to play with would be -a and -m. 'Course like
anything that needs to be done as root, you're responsible for the
result.
--
Tom Brinkman [EMAIL PROTECTED] Galveston Bay
