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. -- The key to getting good answers is to ask good questions. _______________________________________________ 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