Checking "systemctl list-units" I noticed that "multipathd.service" had failed to load. Searching for this issue I found several bug reports (other Linux OSes), and this in particular refering to the same issue for Solus Budgie, which hasn't been submitted in Phabricator as suggested, so I thought that should be a good idea.
The output of "systemctl status multipathd.service" is
● multipathd.service Loaded: not-found (Reason: No such file or directory) Active: failed (Result: exit-code) since Tue 2017-08-01 10:39:02 -04; 3h 11min ago Main PID: 195 (code=exited, status=1/FAILURE)
The output of "sudo journalctl -u multipathd.service" is something like this,
... -- Reboot -- Jul 26 22:53:27 solus multipathd[192]: Jul 27 02:53:27 | Checker 'directio' not found in /lib64/multipath Jul 26 22:53:27 solus multipathd[192]: Jul 27 02:53:27 | failed to initialize checkers -- Reboot -- Jul 27 12:57:17 solus multipathd[191]: Jul 27 16:57:17 | Checker 'directio' not found in /lib64/multipath Jul 27 12:57:17 solus multipathd[191]: Jul 27 16:57:17 | failed to initialize checkers ...
My version is Solus Budgie "shannon".
I hope it helps.