Re: [git patches] libata hibernation fixes

[Robert Hancock]

Mark Lord wrote:
> Robert Hancock wrote:
> > IDLE IMMEDIATE just transitions the device to the Idle state, which is 
> > normally parked/unloaded and spun down.
> ..
>
> No, you're confusing "IDLE" with "STANDBY".  IDLE just puts the drive
> electronics into a lower-power state than "ACTIVE", but normally leaves
> the platters spinning.
>
> The "UNLOAD" enhancement causes it to also "unload" or "park" (drive's 
> option)
> the heads as part of this action.
>
> "STANDBY" is the command set which parks heads and spins down the platters.

Right, STANDBY IMMEDIATE was the one I was thinking of.
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