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Re: USB external hard drive spin down problem
From: Marty <martyb(at)ix.netcom.com>
Date: Wed Oct 31 2007 - 19:36:19 EDT
>> Douglas A. Tutty wrote:
>> >On Sun, Oct 28, 2007 at 09:47:58PM -0400, Marty wrote:
>> >>On my Etch system a new Western Digital USB external hard drive seems to
>> >>be automatically spinning itself down after a period of inactivity, and
>> >>causing the USB controller to become unresponsive to all USB devices
>> >>until the system is rebooted.
>> >>
>> >>I don't see any other problems. Based on my web search, it seems to be
>> >>an old issue in Debian and some spinoff distros, with no clear
>> >>resolutions that I could find. The exact behavior has been reported
>> >>several times, but rarely and few of the reports are recent. My current
>> >>workaround is to keep the drive busy while I am using it. I am hoping
>> >>that there is some configuration or tool that resolves or works around
>> >>this problem, which I am not aware of.
>> >
>> >Try hdparm to turn off the drive's auto-spindown.
>> >
>>
>> # hdparm -S0 /dev/sdb
Date: Wed Oct 31 2007 - 19:36:19 EDT
Douglas A. Tutty wrote:
> On Mon, Oct 29, 2007 at 01:15:44AM -0400, Marty wrote:
>> Douglas A. Tutty wrote:
>> >On Sun, Oct 28, 2007 at 09:47:58PM -0400, Marty wrote:
>> >>On my Etch system a new Western Digital USB external hard drive seems to
>> >>be automatically spinning itself down after a period of inactivity, and
>> >>causing the USB controller to become unresponsive to all USB devices
>> >>until the system is rebooted.
>> >>
>> >>I don't see any other problems. Based on my web search, it seems to be
>> >>an old issue in Debian and some spinoff distros, with no clear
>> >>resolutions that I could find. The exact behavior has been reported
>> >>several times, but rarely and few of the reports are recent. My current
>> >>workaround is to keep the drive busy while I am using it. I am hoping
>> >>that there is some configuration or tool that resolves or works around
>> >>this problem, which I am not aware of.
>> >
>> >Try hdparm to turn off the drive's auto-spindown.
>> >
>>
>> # hdparm -S0 /dev/sdb
> > I don't have it installed right now, but don't you have to tell hdparm > (with a param) that its a scsi or something (even though it should > figure that out with /dev/sdb)? Anyway, from what I remember, you're > missing a param.
I've been experimenting for a few days now and still can't get hdparm or sdparm to work on the drive. Additional research suggests there is currently no way to change a USB drive standby timer using Debian/Linux. (See the USB section at http://sg.torque.net/sg/sdparm.html).
In the meantime I've discovered I can start or stop the drive using sg-start, athough it doesn't wake up the drive if it spins down as a result of the standby timeout, so a reboot is still required. I suspect that this is a kernel bug.
-- To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.orgReceived on Wed Oct 31 19:36:43 2007
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