Re: Does Linux support powering down SATA drives?

[Marc Perkel]

Alistair John Strachan wrote:

> On Saturday 19 November 2005 19:01, Alan Cox wrote:
>  
>
> > On Sad, 2005-11-19 at 09:41 -0800, Marc Perkel wrote:
> >    
> >
> > > Trying to save power consumption. I have a backup drive that is used
> > > only once a day to back up the main drive. So - why should I run it more
> > > that 10 minutes a day? What I'd like to do is keep it in an off state
> > > and then at night power it on, mount it up, do the backup, unmount it,
> > > and shut it down. Can I do that?
> > >      
> > SATA not yet, USB you could however.
> >    
>
> Or PATA, of course. I switch off two of my HDs 4 minutes after last use with 
> the commands:
>
> hdparm -S 48 /dev/hde
> hdparm -S 48 /dev/hdg
>
> Isn't there a passthru patch in the works to let commands, such as the one 
> required for suspend, through to a SATA device?
>
>  

So - why isn't there more SATA support. Seems like this and SMART aren't 
supported. What's up with that? Why is SATA harder than IDE?

--
Marc Perkel - marc@xxxxxxxxxx

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