Re: External HDD reset and subsequent disconnect

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Looks like I found a solution to my problem, and can understand why I
wasn't finding anyone else with the same exact problem. Hope this
message helps someone else who DOES encounter the same problem.

The system I was using had 3 USB ports, all occupied:
1. Maxtor One Touch 3 (80GB) external (USB-powered) drive
2: Seagate FreeAgent Xtreme (1TB) external (externally-powered) drive
3. Targus Chill-Mat cooling device (USB-powered.)

The Seagate drive was the one showing the disconnect problem. However, I
noticed that it was failing when the system was transferring from the
Maxtor to the Seagate.

Turns out that the Maxtor needs to be plugged into TWO ports to have
sufficient power (special cable required.) I decided to replace the
cooling device with a (USB-powered) hub. Then I could plug in both the
extra power connection for the Maxtor and the cooling device into the
hub. This seems to have fixed the issue.

So, the question becomes, does it make sense that the Maxtor would draw
too much power, off-lining the Seagate? If so, then the Seagate must not
be able to recover from this situation for some reason. Is there a
possible software fix for this, or is it too hardware-specific to
justify a fix?

-- Dourado

On Fri, 2009-11-27 at 14:51 -0800, Dourado wrote:
> Hi all,
> 
> I've been trying to find a solution/workaround for my external hard
> drive. It stays connected and working for awhile, but eventually gets
> off-lined. It can vary from a few hours to a couple of days, but always
> happens eventually.
> 
> I am running kernel 2.6.26 from debian stable, but I've also tested it
> on 2.6.30 from backports and get the same result.
> 
> Any help at all would be greatly appreciated. I've attached the relevant
> logs.
> 
> Thanks!
> -- Dourado
> 

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