Ubuntu 18.04 usb mount/umount causes drives resume from standby state

[Fred Eric]

On my system, I've installed a HDD dedicated to backups. When unused, this disk is in standby and unmounted state.
When I plug or unplug usb devices, the mount/unmount of the usb device's filesystem causes the standby disk to wake up. This is unnecessary and increases the wear and tear of my backup HDD.
I would like to mount an usb device without affecting unrelated disks (i.e. sleeping and not mounted).

I had'nt noticed this behavior on ubuntu xenial 16.04.

Another users seems to be confronted to the same problem :
https://unix.stackexchange.com/questions/457729/ubuntu-18-04-mount-umount-causes-drives-resume-from-standby-state

https://github.com/storaged-project/udisks/issues/611 (a patch is proposed for this subject on the github of the project)

My release :
Description: Ubuntu 18.04.2 LTS
Release: 18.04

Package's version :
udisks2:
  Installed: 2.7.6-3ubuntu0.2
  Candidate: 2.7.6-3ubuntu0.2

Thanks !

[Sebastien Bacher (seb128)]

Thank you for your bug report and the upstream reference