Power savings on USB Hard drives

[Nate Lawson]

Laurent LEVIER wrote:
> Hi Guys,
> 
> I am using FreeBSD 6.2, soon 7.0 over a server and a laptop.
> 
> I would like, on both configurations, to be able to have hard drive
> power savings as on internal IDE drives.
> 
> At the moment, my external USB2 drive, when mounted but even not
> adresses, keeps running permanently despite it is just mounted for
> backups (no access out of backup times on sunday then).
> 
> I digged on mailing lists, but cant find why the HD keep running.
> 
> Can someone help?
> 
> Thanks in advance
> 
> Brgrds

This is outside the realm of acpi.  Have you tried the ataidle ported
application?  It works for most internal drives but I'm not sure how it
would do over USB.

-- 
Nate