Fusion Drive: HDD constantly spins down and up

Discussion in 'Mac mini' started by mightyspambot, Dec 3, 2012.

  1. mightyspambot macrumors newbie

    Dec 3, 2012
    Hey there,
    I didn't know where to put my question/problem - hope I'm right here.

    I installed a new SSD and a new HDD in my Mac mini (2011) and merged them to a Fusion Drive. The performance (booting up, starting applications, etc.) is great. But it seems that I have problems with permanent spin downs/spin ups of the the HDD.

    It seems that when there is no access on the HDD, the drive spins down. But - for example during surfing in the internet (open a new tab,...) - OSX wakes the drive up again. This lasts for 15-20s and then the drive spins down again. For additional 5-10s,... and the procedure starts from the begin.

    Is this the usual behavior of the Fusion Drive?

    Bye, mightyspambot
  2. spinko macrumors regular

    Sep 16, 2003
    N hemisphere
    I'm getting the same behavior. The internal HDD spins-up constantly. It is especially noticeable in Safari which locks down for a couple of seconds until the HDD has reached its operating speed. Just happened now, while I was writing.:confused:

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