Comment 21 for bug 1281588

udisks' / gnome-disk-utility's support for the drive standby timer is broken. If the standby timer is set to at least 10 minutes ( which is the minimum on many drives ), every 10 minutes udisks tries to update the smart status of the drive, which resets the standby timer.

Reported in Ubuntu: https://bugs.launchpad.net/bugs/1281588

As David Zuthern noted in a private message, my initial patches to fix this also prevent ever updating smart data on disks that are never used, even if they do not have a standby timer enabled. I will fix them to be contingent on a standby timer and post updated patches here soon.