Sherman Grunewagon wrote:
On Tue Apr 9, 2013, at 06:02:08, pomo wrote:
On 09.04.2013 07:38, Sherman Grunewagon wrote:
I have an external SATA disk in a USB-3 / eSATA docking
station. When I connect using eSATA, the disk stays awake. But when I
connect using the USB-3 port, it goes to sleep after a few
minutes. How do I make it work like the eSATA?
- autosuspend
less /usr/share/doc/kernel-doc-3.8.5/Documentation/usb/power-management.txt
Thanks. Nicely written doc. But nothing I've tried after reading it works.
Here's what I did.
gdisk -l /dev/sdd (to wakeup the disk)
echo -1 > /sys/devices/pci0000:00/0000:00:14.0/usb4/power/autosuspend (it was 0)
<After a few minutes the disk suspends>
gdisk -l /dev/sdd (to wakeup the disk again)
echo "on" > /sys/devices/pci0000:00/0000:00:14.0/usb4/power/control (was "auto")
<Disk suspends again after a few minutes>
gdisk -l /dev/sdd (wakeup it up again)
echo on > /sys/devices/pci0000:00/0000:00:14.0/usb4/4-3/4-3:1.0/host20/target20:0:0/20:0:0:0/block/sdd/power/control (was "auto")
<No luck. Disk still suspends>
Other suggestions?
Have you tried just disabling spindown? (hdparm -S0 drive)
--
Bill Davidsen <davidsen@xxxxxxx>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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