-B option

2005-07-18
2013-04-27
  • Gilson Laurent
    Gilson Laurent
    2005-07-18

    Hello (somebody here ?)

    What is this -B option exactly ? Where do i find information on this apm-for-HD's ?

    Or is it simply a combination of -S and -M ?

    thx

     
    • stanz
      stanz
      2006-05-02

      http://www.linuxdevcenter.com/pub/a/linux/2000/06/29/hdparm.html

      has kinda allot of info...google for more!

       
    • Mark Lord
      Mark Lord
      2006-10-16

      The -B option simply tells the drive firmware to use a specific power management mode.  These are vendor-defined, and often do more than the simpler -S (spindown timeout) does.

      -B often also sets a spindown time of it's own choosing, but also powers down parts of the on-drive electronics before / instead / after spindown, giving a more comprehensive power-savings effect.

      Or not.

      Cheers