SATA problems

[Rohan Kulkarni]

On 7/2/07, John Wendel <john.wendel at metnet.navy.mil> wrote:
>
> Rohan Kulkarni wrote:
> >
> >
> > On 7/2/07, *Tim* <ignored_mailbox at yahoo.com.au
> > <mailto:ignored_mailbox at yahoo.com.au>> wrote:
> >
> >     On Mon, 2007-07-02 at 19:14 +0530, Rohan Kulkarni wrote:
> >      > My motherboard supports hard disk speed of 150MB/s but i get only
> >      > 15MB/s speed
> >
> >     Have you double-checked that the figures you're reading at are bits
> per
> >     second or bytes per second?
> >
> >     --
> >     (This box runs FC5, my others run FC4 & FC6, in case that's
> >     important to the thread.)
> >
> >     Don't send private replies to my address, the mailbox is ignored.
> >     I read messages from the public lists.
> >
> >
> >
> > Hello,
> >            Yes I have checked with the motherboard specifications.It
> > says that it supports
> >            a speed of 150MB/s.It is bytes for second.Though my hard disk
> > supports native command queing my motherboard does not support it.
> >
> >     --
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> >
> >
>
> It doesn't matter what speed your motherboard (SATA controller)
> supports if the disk speed is slower. What brand/model of disk do you
> have? What kernel version? How are you measuring the disk speed?
>
> Regards,
>
> John



Hello,
         I have a Seagate ST3160211AS.It is a Barracuda 160GB hard disk with
a
         speed of 7200RPM.It supports upto 300MB/s with Native Command
Queing.I checked the average  speed of copying by copying a
         3GB file from one FAT32 partition to another.I got a average speed
of around
         15MB/s.I have the kernel 2.6.21-1.3228.fc7
                                                         Thanks...

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