On 04/12/2013 04:27 PM, Bill Davidsen issued this missive:
Sherman Grunewagon wrote:
On Wed Apr 10, 2013 at 11:41 AM, Bill Davidsen wrote:
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?
<snip>

Other suggestions?

Have you tried just disabling spindown? (hdparm -S0 drive)
Thanks. I have now, as well as hdparm -B 255 drive.
The disk/docking station still suspends after a few minutes.
I'm ready to try recompling the kernel with CONFIG_USB_SUSPEND=n
But since

     for i in /sys/bus/usb/devices/*/power/autosuspend; do echo -1 >
$i; done

also has no effect, I think it will be a waste of time.

I believe you should be doing

for i in /sys/bus/usb/devices/*/power/autosuspend_delay_ms; do echo "-1" >$i; done

Or

    for i in /sys/bus/usb/devices/*/power/control; do echo "on" >$i; done

They're supposedly equivalent (according to the kernel docs).
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- Rick Stevens, Systems Engineer, AllDigital    ri...@alldigital.com -
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-   Which is worse: ignorance or apathy?  I don't know.  Who cares?  -
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