Hello!

Is there a website suggesting wich parameters to use with hdparm for
specific hard drives?

Thanks in advance,

--
Neptune

Captains log; stardate Tuesday 13 January 2004 03:00 am, Lieutenant Neptune reported that.......

> Hello!
>
> Is there a website suggesting wich parameters to use with hdparm for
> specific hard drives?
>
> Thanks in advance,
>

Um.....No? What would the purpose of documenting this information be, seeing as how different
settings have different effects based on variables OTHER than the hard drive, such as your Mobo,
CPU, Ram, FSB, et al. A switch that makes my Maxtor 5200RPM 100Gb HDD run 80% faster on your
machine may only make mine 2% faster.

For starters, run man hdparm, take a look at every switch and setting available.


Secondly, (and you'll probably want to do the following steps on a few terms so you can see each
output simultaniously) run hdparm /dev/DEVICE, and note down those default values somewhere.

Thirdly run hdparm -i (or I, if you prefer) /dev/DEVICE, and note its capabilities. More likely
than not, they will already be at their optimal settings (Gentoo is just that good)

Now tweak away, bearing in mind that just because your HDD may support a setting, doesn't mean your
Mobo [CPU|FSB|Memory|Grandmother] will support it. One of my HDD's supports a UDMA5 setting whilst
my mobo doesn't. If I try and set it to 5, hdparm claims success but corrupted data (and usually a
kernel panic) ensue shortly thereafter.
--
Shan Destromp
---
Sent: Tue, Jan 13, 2004 @ 03.35.20 EST
----
OS: GNU/Linux 2.4.22-gentoo-r4
Processor: AuthenticAMD i686

Captains log; stardate Tuesday 13 January 2004 03:40 am, Lieutenant Shan Destromp reported
that.......

> Captains log; stardate Tuesday 13 January 2004 03:00 am, Lieutenant Neptune reported that.......
>
>> Hello!
>>
>> Is there a website suggesting wich parameters to use with hdparm for
>> specific hard drives?
>>
>> Thanks in advance,
>>
>
> Um.....No? What would the purpose of documenting this information be, seeing as how different
> settings have different effects based on variables OTHER than the hard drive, such as your Mobo,
> CPU, Ram, FSB, et al. A switch that makes my Maxtor 5200RPM 100Gb HDD run 80% faster on your
> machine may only make mine 2% faster.

</snip>

This kinda makes me sound like an arse, which I'm not (normally). Its just that for such a database
to be truely applicable, one would have to catologue every mobo / cpu / hdd / mem combonation
possible AND all the different switch settings there are....basically a task that is not worth the
effort. the man page is basically your best reference, well that and your hardware manuals
--
Shan Destromp
---
Sent: Tue, Jan 13, 2004 @ 03.42.37 EST
----
OS: GNU/Linux 2.4.22-gentoo-r4
Processor: AuthenticAMD i686

Shan Destromp wrote:

> This kinda makes me sound like an arse, which I'm not (normally). Its just that for such a database
> to be truely applicable, one would have to catologue every mobo / cpu / hdd / mem combonation
> possible AND all the different switch settings there are....basically a task that is not worth the
> effort. the man page is basically your best reference, well that and your hardware manuals

Thanks a lot for this information. It's true that my Gentoo seems to
have set the right parameter for the hard drive. I'll try to read
carefully and entirely the man page, but for the moment, my settings
seems really good.

Thanks!

--
Neptune