Sluggish USB hard drives
in [General Linux]
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From: James H. Markowitz on 11 Feb 2010 21:40 On Thu, 11 Feb 2010 15:24:58 -0500, David W. Hodgins wrote: > On Thu, 11 Feb 2010 14:22:20 -0500, Todd <todd(a)invalid.com> wrote: > >> On 02/09/2010 06:03 PM, James H. Markowitz wrote: >>> I have a number of USB hard drives connected to a Linux PC. They >>> all work fine, but they have an annoyance in common: When they have >>> been accessed for a while (minutes; I am not sure how many) the next >>> time I try to access them several seconds elapse before they respond. >>> It's as though they stopped spinning when not accessed for a while. > >> https://bugzilla.redhat.com/show_bug.cgi?id=469290 You are not alone. >> The only way I found to get around it was to reboot. Changing >> "elevators" did not work either. > > See if > echo "-1" >/sys/module/usbcore/parameters/autosuspend helps fix this. Unfortunately, /sys/module/usbcore/parameters/autosuspend doesn't exist in my Slackware 12.1 box, running a 2.6.24.5 kernel.
From: David W. Hodgins on 11 Feb 2010 22:01 On Thu, 11 Feb 2010 21:40:25 -0500, James H. Markowitz <noone(a)nowhere.net> wrote: > Unfortunately, /sys/module/usbcore/parameters/autosuspend doesn't > exist in my Slackware 12.1 box, running a 2.6.24.5 kernel. See if the fourth answer in http://www.linuxquestions.org/questions/linux-hardware-18/how-can-one-get-usb-external-disk-drive-to-sleep-667762/ helps. Regards, Dave Hodgins -- Change nomail.afraid.org to ody.ca to reply by email. (nomail.afraid.org has been set up specifically for use in usenet. Feel free to use it yourself.)
From: James H. Markowitz on 12 Feb 2010 11:30 On Thu, 11 Feb 2010 22:01:44 -0500, David W. Hodgins wrote: > On Thu, 11 Feb 2010 21:40:25 -0500, James H. Markowitz > <noone(a)nowhere.net> wrote: > >> Unfortunately, /sys/module/usbcore/parameters/autosuspend doesn't >> exist in my Slackware 12.1 box, running a 2.6.24.5 kernel. > > See if the fourth answer in > http://www.linuxquestions.org/questions/linux-hardware-18/how-can-one- get-usb-external-disk-drive-to-sleep-667762/ > helps. Thanks. Still no joy, unfortunately: autosuspend is nowhere to bee seen in my /sys/bus/usb/devices subdirectories, and trying to echo anything into it makes no difference.
From: J G Miller on 12 Feb 2010 13:30 On Fri, 12 Feb 2010 16:30:31 +0000, James H. Markowitz wrote: > Still no joy And what happens when you try using the hdparm utility as suggested in another posting?
From: Harold Johanssen on 12 Feb 2010 15:00
On Fri, 12 Feb 2010 19:30:53 +0100, J G Miller wrote: > On Fri, 12 Feb 2010 16:30:31 +0000, James H. Markowitz wrote: > >> Still no joy > > And what happens when you try using the hdparm utility as suggested in > another posting? I thought that hdparm was meant for IDE drives, not USB ones. Anyway, I tried the following: # hdparm -C /dev/sde and this is what I got. /dev/sde: G_IO: bad/missing ATA_16 sense data:: 70 00 05 00 00 00 00 0a 00 0 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 G_IO: bad/missing ATA_16 sense data:: 70 00 05 00 00 00 00 0a 00 0 00 00 20 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 drive state is: unknown I am a bit reluctant to tinker with my USB drive using hdparm any further until I understand it better. |