The command that is causing the rapid spin down is the spindown time command "hdparm -S 12". Manually issuing a hdparm -S 244 command makes the frequent parking stop. The spindown command is obviously taking precedence over the hdparm -B 254 command.
So the bug is that some process on resume is issuing the spindown time command "hdparm -S 12 /dev/sda" when power is not attached. This spindown time command is normally not executed upon power removal, and consequently there is no corresponding spindown time command issued to increase the time when power is reattached. I can't find any settings for issuing the hdparm -S 12 command so I can't see which script is doing it - does anyone have any suggestions where to look? The problem is acerbated by another bug ie that hdparm -S 12 is supposed to cause spin down every 1 minute but instead sets spindown to 5 seconds after no disk activity. See https://bugs.launchpad.net/ubuntu/+source/hdparm/+bug/309139 (which is not a duplicate of this bug). -- hard disk parks regularly after resume - hdparm -B 254 has no effect https://bugs.launchpad.net/bugs/361680 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
