Low HDD tranfer rate with FreeBSD 5.3-Release

[John Von Essen]

Actually, using a variety of Maxtor drives, I don't think I have ever
gotten anything better then 11.5 Megabytes/sec - and this was on boards
with ATA-100.

About a year ago I had several Tyan S2099's with a 40Gb Seagate, and was
doing drive duplications with dd and a FreeBSD boot CD. Again, 11
Megabytes/sec max.

-john

On Mon, 9 May 2005, Erik Udo wrote:

> But he is getting over 100 megabits per second!
>
> Anyway, i'm getting 50~60MB/s on my
> ad0: 194481MB <Maxtor 6Y200P0/YAR41BW0> [395136/16/63] at ata0-master
> UDMA133
>
> So i think 15MB/s is a little slow.
>
> John Von Essen wrote:
> > That sounds about right!
> >
> > You weren't expecting to get 100Mb/s were you??
> >
> > -john
> >
> > On Mon, 9 May 2005, Amandeep wrote:
> >
> >
> >>Hi all,
> >>
> >>I am using Tyan S2098 MB with 160GB Maxtor ATA  Drive and the transfer
> >>rate is very low. FreeBSD 5.3-Release.
> >>Any ideas what is going on here.
> >>
> >>The transfer rate is about 15MB/s
> >>
> >>when I run
> >>
> >>#dd if=/dev/zero of=/usr/junk bs=8192
> >>
> >>then do
> >>#iostat 1
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