Gordon Messmer wrote: > On 01/27/2016 08:11 AM, m.roth at 5-cent.us wrote: >> my manager has me using >> pmount/pumount to mount the hard drives I'm putting in the eSATA drive >> bay for offline backups. Formerly, I used mount/umount, and when I >> umounted it, and walked downstairs, mostly, esp the green drives, >> were spun down. I pumount... and*nothing* spins down. > > I think you're seeing a simple correlation of events that are > indeterminate. Un-mounting a filesystem doesn't cause the drive to spin > down (though "eject" should, IIRC). WD Green drives have a short > spin-down period, and are more likely to spin down while not being > accessed. > > pmount is just a SUID wrapper around mount. That is, it calls mount and > umount. Whatever is keeping your drives from spinning down is almost > certainly unrelated to using pmount. > > I'd suggest that you make the users who need to handle these disks > members of the "disk" group. With that membership, they should be able > to run "eject" to safely remove the drives and cause them to spin down. Um, us sysadmins, the only ones using pmount, can do that already. Thanks. mark