[TriLUG] Slow hard drive Centos 5.6

[Igor Partola]

I was under the impression that most things in modern OSes were controlled
from the OS, and the BIOS settings only affected the system before the
kernel was loaded. For example the IDE transfer mode, the IDE/SATA's drive
write-caching and power options can all be controlled via hdparm (8).

Another option: try connecting the new drive to an old machine and see what
the performance is like there. Maybe the drives themselves are slower.

Igor

On Wed, Oct 5, 2011 at 1:50 PM, Mike Norwood <norwoodm at embarqmail.com>wrote:

>
> Ron,
>
> Thanks for quick reply. The problem is the stupid Dell bios which really
> doesn't seem to let you change anything of importance. I can't see any way
> to actually affect the hard drive settings.
>
> Mike
>
> On Wed, 5 Oct 2011, Ron Kelley wrote:
>
> > Check to see if the BIOS settings for the HDDs are set for AHCI instead
> of IDE (or compatible).  /dev/hda implies older IDE drives - thus pointing
> to the slowness you are experiencing.
> >
> > Thanks,
> >
> > -----------------------------
> > Ron Kelley
> > rkelleyrtp at gmail.com
> >
> >
> >
> > On Oct 5, 2011, at 1:15 PM, Mike Norwood wrote:
> >
> > >
> > > Hello,
> > >
> > > We have been purchasing Dell Vostro's and loading them with Centos and
> > > everything has been working great.  Recently Dell changed their models
> on
> > > their slim tower Vostro's from 230 to 260, which meant they got rid of
> PCI
> > > slots for PCIexpress and got rid of the still useful serial port.  We
> have
> > > been loading Centos 5.6 and it still loads fine and everything works,
> but
> > > the hard drive performance is now so much slower.  It now sees the SATA
> > > drive as /dev/hda instead of /dev/sda.   Google searches say to check
> the
> > > bios and make sure all the SATA stuff is turned on, but these Dell
> > > computers have very limited bios settings and no real control over
> > > anything.  Just wondered if anyone else had ever seen anything similar
> or
> > > had any possible solutions.
> > >
> > > Thanks in advance,  Mike in Hillsborough
> > >
> > > --
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