Re: Does Linux support powering down SATA drives?

From: Marc Perkel
Date: Mon Nov 21 2005 - 10:49:02 EST

Mark Lord wrote:

Yes, the hdparm -y, -Y, and -S flags all work with the passthru feature set,
which is included in the 2.6.15-rc* kernels.

Typical power consumption figures, from WDC SataII drives:

Idle: 430mA@12VDC + 730mA@5VDC (about 8.75 watts)
Standby: 20mA@12VDC + 270mA@5VDC (about 1.60 watts)
Sleep: 20mA@12VDC + 250mA@5VDC (about 1.50 watts)

Those are from the WDC datasheets.


Here's maxotor specs

Spinup (avg, watts) 28.7
Seek (avg, watts) 12.3
Idle (avg, watts) 7.0
Standby (avg, watts) 2.1

Marc Perkel - marc@xxxxxxxxxx

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