I'd just like to report I am facing the exact same issue. This is definitely not a hardware problem.
Upgraded from Fedora 9 to 11. Before upgrading everything worked fine. Hard drives will spin down after idling for a while. But now. They don't do that any more.
I have 3 hard drives, 2 of which are for backup purpose, one ATA, one SATA. If I issue a "hdparm -y" command. Both drives would spin down, no problem. then after a while I could hear them suddenly start spinning up again. do a "hadparm -C", both are active now.
This happens every half an hour.
If I kill devkit-disks-daemon, the issue will be gone. Both drives would spin down as expected.
I'd just like to report I am facing the exact same issue. This is definitely not a hardware problem.
Upgraded from Fedora 9 to 11. Before upgrading everything worked fine. Hard drives will spin down after idling for a while. But now. They don't do that any more.
I have 3 hard drives, 2 of which are for backup purpose, one ATA, one SATA. If I issue a "hdparm -y" command. Both drives would spin down, no problem. then after a while I could hear them suddenly start spinning up again. do a "hadparm -C", both are active now.
This happens every half an hour.
If I kill devkit- disks-daemon, the issue will be gone. Both drives would spin down as expected.