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hdparm

Get and set SATA and IDE hard drive parameters.

More information.

• Request the identification info of a given device:

sudo hdparm -I /dev/{device}

• Get the Advanced Power Management level:

sudo hdparm -B /dev/{device}

• Set the Advanced Power Management value (values 1-127 permit spin-down, and values 128-254 do not):

sudo hdparm -B {1} /dev/{device}

• Display the device's current power mode status:

sudo hdparm -C /dev/{device}

• Force a drive to immediately enter standby mode (usually causes a drive to spin down):

sudo hdparm -y /dev/{device}

• Put the drive into idle (low-power) mode, also setting its standby timeout:

sudo hdparm -S {standby_timeout} {device}

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