On Wednesday 27 December 2000 15:24, you wrote:
> It is a old mother board is a VX two chipset. I don't quite know how old
> that makes it. but would that be appropriate for it . I know the man pages
> said to use X34 with the -d switch but what does it mean. The man pages do
> give a glimmer on the subject but leave more to be desired. It is safe aint
> it. I just wondered I have a WD drive and it is getting extremely hot. I
> already had it locked up once on me. I checked the thing and it is setup
> for ATA 100 could those switches change the ATA mode of the drive ? But I
> really don't mind the drive being in ATA 100 if the hardware and software
> can handle it. I for sure know that the drive was built for it. Also how
> well would the thing do if I put a hard drive fan on it.
A fan is always a good idea. Semiconductors have an operating range that is
temperature dependent.
Your drive might handle ATA/100 but your chipset won't do even ATA/33 (udma2)
The setting is to coax all out of that chipset that it is capable of, which
is mdma2. The setting is safe for that chipset, and any setting is safe for
that drive if it is truly ATA/100. My testing and bug chasing activities
here give me a little different view of WDs--just used one that tested at
19.1Mb/s at ATA/66 and 19.34Mb/s at ATA/33. I think I will keep it in udma2
(ATA/33) because I don't get any write errors there, and I have a slightly
better data rate.
Anyway, good luck with the rig. It should work well for you. The
conservative hdparm settings will do no harm and a fan will help your hard
drive. It is likely a 7200 rpm model, and I have noticed that they do run
hot.
Experience is that a cooling fan extends the life of IDE HDDs by quite a lot.
Where I used to replace one a year, I have been running one for 2 years with
a fan and it is still working.
Civileme
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of civileme
> Sent: Wednesday, December 27, 2000 6:47 AM
> To: [EMAIL PROTECTED]
> Subject: Re: [expert] What is this
>
> On Wednesday 27 December 2000 08:11, you wrote:
> > Hello I was given some code by someone and I was curious what it meant: (
> > This was sent in response to my asking about hard drive optimization )
> > hard drive optimization :
> > hdparm -A1 -d1 -X34 /dev/hda
> >
> > I was told that hdparm was about adjusting the HD and I know that the
> > /dev/hda is referring to device hda which is the hard drive but those
>
> lines
>
> > in between got me totally stumped.
> > Steve Hagerman
> > [EMAIL PROTECTED]
> > http://www.advancedisp.com
>
> man hdparm
>
> -X34 = mdma*2
>
> -d1 Enable DMA
>
> -A1 enable read lookahead feature
>
> This must be for an older Motherboard. These settings woulf be appropriate
> on an Intel TX chipset.
>
> Civileme
