disk spindown

[Wolfgang S. Rupprecht]

Has anyone succeeded in spinning down disks under Fedora?

I've done the following and the "hdparm -C" does show the disk spun
down, but the next time I look it is spun up, and it stays up.  The disk
is unmounted and I've stopped and disabled smartd, so it isn't accessing
the disks.  I don't think anything else is either.  I'm probably missing
a trick somewhere, but what???

    disk=/dev/sdc

    hdparm -S 120 $disk
    hdparm -y $disk
    hdparm -C $disk

-wolfgang
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