Is error possible using usb to transfer file?

When transfer big file( > 100M ) via ethernet cable,
no matter using ftp, http or netbue, some times
error do occure, and the file must be re-transfered.
But if the file is transfered between two hard drives
within a computer, it seems there's never any error.
How about usb? Any error happened to you when using
usb? (usb flsh, usb external hard drive, etc. )
Thank you for your information.

["Followup-To:" header set to comp.os.linux.hardware.]
On Fri, 22 Oct 2004 12:03:58 -0400, hyh staggered into the Black Sun and
said:
> When [transferring] [a] big file( > 100M ) via ethernet cable, no
> matter [whether I'm] using ftp, http or [netBEUI], sometimes [errors]
> [occur], and the file must be re-transferred.

This is not normal. I've never had problems like this at work or at
home. If Cat5 and 100bT NICs were this unreliable, I wouldn't ever be
able to get any work done. *Check your hardware*. Bad cables, cables
that are too long, or a NIC or switch that's randomly dropping bits
could cause these problems. Exact details on your hardware (like "we're
using a Foobar 3000 switch, 3c501 NICs, and 400-foot-long cables made by
Joe Bob's Cable Factory") would help people tell you where the problem
is likely to be.

> But if the file is transfered between two hard drives within a
> computer, it seems there's never any error.

Sounds like a problem with your Ethernet setup.

> How about usb? [Has] any error happened to you when using usb? (usb
> [flash], usb external hard drive, etc. )

No, but I don't use USB storage devices very much because they're slow.
USB2 is faster but more expensive. Fix your Ethernet setup; a good
network is more flexible, faster, and easier to work with than USB
devices.

--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin / mail: TRAP + SPAN don't belong
http://www.brainbench.com / Hire me!
-----------------------------/ http://crow202.dyndns.org/~mhgraham/resume

On Fri, 22 Oct 2004 12:03:58 -0400, hyh <(E-Mail Removed)> wrote:

> When transfer big file( > 100M ) via ethernet cable,
> no matter using ftp, http or netbue, some times
> error do occure, and the file must be re-transfered.

What kind of error? TCP fixes errors and drops.

> But if the file is transfered between two hard drives
> within a computer, it seems there's never any error.
> How about usb? Any error happened to you when using
> usb? (usb flsh, usb external hard drive, etc. )
> Thank you for your information.

hyh wrote:

> When transfer big file( > 100M ) via ethernet cable,
> no matter using ftp, http or netbue, some times
> error do occure, and the file must be re-transfered.

If you're getting errors, you've got a problem that needs to be corrected.

--

(This space intentionally left blank)

On 2004-10-22, hyh <(E-Mail Removed)> wrote:
> When transfer big file( > 100M ) via ethernet cable,
> no matter using ftp, http or netbue, some times
> error do occure, and the file must be re-transfered.

What kind of brain-dead transfert protocol are you using? ftp and scp
have error correction, and is not the first time that I've copied
GIGABYTES of files trought the network without error. You've a problem
in your network that need to be solved.

Davide

--
"Microsoft technology" -- isn't that an oxymoron? -- Gareth Barnard