Re: USB disk fails when accessed after idle for some hours
On Thu, 29 Jan 2009 22:00:13 +0100, Ron Johnson wrote:
> On 01/29/2009 10:52 AM, Reid Priedhorsky wrote:
>> All,
>>
>> I have a USB disk (a 320GB Western Digital My Passport) which is
>> exhibiting the following problem.
>>
>> When first hooked up and mounted, it works fine. I've successfully
>> transferred 100's of GB onto the disk.
>>
>> However, if left idle for some hours, it fails when accessed, with a
>> spontaneous USB disconnect and reconnect of the device (log excerpts below).
>
> Could it be going into hibernation or sleep?
hdparm -S0 (turning off spin-down) fixes the problem.
(hdparm -B2555 - turn off advanced power management - doesn't help.)
Thanks for the suggestions, folks!
I am going to set up automount and see if that also helps. I will report
back in a couple of weeks.
Reid
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