I recently bought a CubieBoard 3 and installed Debian.The OS is installed on SD card and I use a 2.5 HDD to share files.The HDD is using ext4.I want the HDD to spin down if it is not used to save energy and increase the disk's lifetime. I had some problems using hdparm so I tried hd-idle which seems to work.The disk is spinning down for exactly 5 minutes and is then active for other 10 minutes just to repeat it again.Any tips how I could analyze what is spinning my disk up?
What is spinning my disk up periodically?
debian;hard disk;hdparm;cubieboard
Thanks for your help but I was creating the issue myself.Although it's a stupid thing, I want to share it:I have an ownCloud installation which is installed on the SD card as well.It is necessary to run a cronjob which is writing a lock file to the disk every 15 minutes which was waking my disk up.