On Mon, 2003-08-18 at 16:54, John wrote:
> >From what I've read, firewire is difficult for OSS because the specs are
> proprietary and the hackers have to reverse-engineer in order to write
> drivers.
>
> In contrast, information about USB is readily available. Given the
> choice, I would prefer USB2 over firewire.
I purchased a Maxtor 500DV 200GB external USB2/firewire hard drive, and
under shrike / kernel 2.4.20-19.9 from my Dell Inspiron 8000
I get 11MB/s (hdparm -t or time dd) when I plug it using USB2
(through a PCMCIA NEC UDB2 adapter) and 21MB/s when I plug it on
firewire. Published benchmarks (under other OSes :) show 25 to 35 MB/s.
Since I don't need much performance (main use is backup) I leave it
plugged on USB2 because it seems to survive much better plug/unplug than
firewire (where I have to play with rmmod and sometimes reboot to get it
back).
Will newer Red Hat releases / kernel versions get better performance
and plug/unplug behaviour? Any other user experience with this drive?
Thanks in advance (and sorry if it's the wrong list).
Laurent
FYI builtin firewire and PCMCIA/USB2 adapter:
# lspci -tv
-[00]-+-00.0 Intel Corp. 82815 815 Chipset Host Bridge and Memory Controller Hub
+-01.0-[01]----00.0 nVidia Corporation NV11 [GeForce2 Go]
+-1e.0-[02-10]--+-[07]-+-00.0 NEC Corporation USB
| | +-00.1 NEC Corporation USB
| | \-00.2 NEC Corporation USB 2.0
| \-[02]-+-03.0 ESS Technology ES1983S Maestro-3i PCI Audio
Accelerator
| +-06.0 Lucent Microelectronics WinModem 56k
| +-0f.0 Texas Instruments PCI4451 PC card Cardbus
Controller
| +-0f.1 Texas Instruments PCI4451 PC card Cardbus
Controller
| \-0f.2 Texas Instruments PCI4451 IEEE-1394 Controller
+-1f.0 Intel Corp. 82801BAM ISA Bridge (LPC)
+-1f.1 Intel Corp. 82801BAM IDE U100
\-1f.2 Intel Corp. 82801BA/BAM USB (Hub #1)
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