- Original Message -
From: "Arne Wörner" <[EMAIL PROTECTED]>
That seems to be 2 or about 2 times faster than disc->disc
transfer... But still slower, than I would have expected...
SATA150 sounds like the drive can do 150MB/sec...
LOL, you might want to read up on what SATA150 means.
In
Arne Wörner wrote:
Hi!
--- Patrick Proniewski <[EMAIL PROTECTED]> wrote:
Can u find out, if DMA transfers are enabled for those discs?
What does dmesg say?
see end of mail for full dmesg output,
Looks good... :-)) But I never saw FBSD's kernel messages about
SATA drives... ;-)
Maybe at
Hi!
--- Patrick Proniewski <[EMAIL PROTECTED]> wrote:
> > Can u find out, if DMA transfers are enabled for those discs?
> > What does dmesg say?
>
> see end of mail for full dmesg output,
>
Looks good... :-)) But I never saw FBSD's kernel messages about
SATA drives... ;-)
> > Maybe atacontrol(8)
Hi,
Can u find out, if DMA transfers are enabled for those discs?
What does dmesg say?
see end of mail for full dmesg output,
What does "sysctl hw.ata.ata_dma" say?
hw.ata.ata_dma: 1
Maybe atacontrol(8) says something useful about SATA discs, too
(e. g. atacontrol mode 0)?
# atacontr
--- Steven Hartland <[EMAIL PROTECTED]> wrote:
> From: "Patrick Proniewski" <[EMAIL PROTECTED]>
>> # dd if=/dev/ad4 of=/dev/ad6 bs=1m
>>
>> It yields to poor performances:
>>
> That's actually pretty good for a sustained read / write on a
> single disk.
>
Does somebody know, why this is "pretty go
That's actually pretty good for a sustained read / write on a single disk.
Steve
- Original Message -
From: "Patrick Proniewski" <[EMAIL PROTECTED]>
To:
Sent: Sunday, October 02, 2005 3:57 PM
Subject: dd(1) performance when copiing a disk to another
Hi,
(carte mère supermicro
chi
Hi,
(carte mère supermicro
chip SATA Intel 6300ESB)
I run FreeBSD 5.4 on a PIV 3GHz (SuperMicro motherboard, Intel SATA
6300ESB chipset) with 2 SATA HDD. I'm in the process to duplicate the
boot HDD to the second HDD. I run dd for that:
# dd if=/dev/ad4 of=/dev/ad6 bs=1m
It yields to poor
