Re: Seagate Device Timing Out -- Needs Reset.

[Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>]

On Fri, 13 Jul 2007, Stephen Samuel wrote:

> I have a Seagate external 500GB drive that has a problem with Linux.
> What's going on (I'm guessing) is that, after a period of inactivity, the drive
> goes into an odd state (probably low-power), and the next read request results
> in a read error.  (see below).
> 
> What catches my eye is:
> Jul 13 14:30:49 steve-dev kernel: [344664.233185]     Additional
> sense: Logical unit not ready, initializing command required
> 
> It seems to me that this error is requesting that the device be restarted.
>   Couldn't the normal response to this sense code be to reset the
> device and/or allow it to resettle, rather than throwing an error back
> into user space? It's really annoying to have your external hard drive
> 'randomly' disappear when you go for lunch.

I believe this has been addressed in later kernels.  Anyway it's a SCSI 
problem, not a USB problem.  You should post your message to the 
linux-scsi mailing list; they ought to be able to help.

Alan Stern


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