On Tue, 2020-06-02 at 11:57 +0100, Patrick O'Callaghan wrote: > On Tue, 2020-06-02 at 18:18 +0800, Ed Greshko wrote: > > On 2020-06-02 17:57, Patrick O'Callaghan wrote: > > > I have a powered USB dock with a couple of SATA drives configured as > > > RAID1, and used only for nightly backups. The (minimal) manual for the > > > dock tells me it will power down after 30 minutes idle time, however I > > > don't see this happening. I presume that something (such as the md > > > system) is touching the drives periodically. > > > > > > What is the fstab option to have the drives mounted only when accessed? > > > This used to be automount (or autofs) but with systemd getting its > > > fingers into everything I know longer know how to do this. > > > > > > Can the drive be automatically unmounted if not in use? I presume this > > > would stop md from trying to check it and hence prevent the dock from > > > keeping it powered on. > > > > I've not tried the timeouts.... But I think you are looking for these options > > > > x-systemd.automount, x-systemd.device-timeout=10, x-systemd.idle-timeout=1800 > > > > I use x-systemd.automount for nfs4 mounts but the NAS takes care of spinning down. > > Thanks Ed. I managed to find the man pages under systemd-mount(1) but > it took a while. The man page for mount(1) should have a reference but > doesn't. Doesn't seem to do anything. I've tested with this line in /etc/fstab: UUID=6cb66da2-147a-4f3c-a513-36f6164ab581 /raid ext4 rw,x-systemd.automount,x-systemd.device-timeout=1,x-systemd.idle-timeout=60 0 0 followed by 'mount -a' (using a 60-second timeout for testing) but it's not unmounting. I also ran 'journalctl -f' but it doesn't show anything. poc _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
