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List:       linux-usb
Subject:    Re: 2.6.26.6-79.fc9: turning off one USB drive disconnected other
From:       NdK <ndk.clanbo () gmail ! com>
Date:       2008-10-31 9:10:04
Message-ID: 490ACB6C.5030905 () gmail ! com
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Alan Stern ha scritto:

> If you plug the Samsung device into a hub instead of directly into the
> computer, then the crosstalk effect should be minimized or even
> eliminated.  You might want to try that experiment as well.
I can confirm that sometimes "bad things" happen when writing, too.
Happened to me a couple of times, but had no time to investigate it
better. Once the corruption was quite severe (had to use reiser's
rebuild-tree) and some files where lost/damaged.

Didn't test w/ an external hub (poor performances when transferring
large amounts of data: from 20+MB/s down to 6-7!), but once happened
when drives were on different controllers (one on the mainboard, the
other on PCI). Both were USB 2.0 .

Hope it helps.

BYtE,
 Diego.
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