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SubjectRe: Does Linux support powering down SATA drives?


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@perkel.com

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My Blog: http://marc.perkel.com

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