Hi,
I have a model running juju 2.5.4, MAAS provider. We're using juju storage :
$ juju storage -m controller
Unit Storage id Type Pool Size Status Message
controller-backup/0 location/0 filesystem rootfs 20GiB attached
But juju (or _something_) keeps mounting the storage over itself, ie :
/dev/sda1 on /srv/controller-backups type ext4 (rw,relatime,data=ordered)
/dev/sda1 on /var/lib/juju/storage/rootfs/0/0 type ext4 (rw,relatime,data=ordered)
/dev/sda1 on /srv/controller-backups type ext4 (rw,relatime,data=ordered)
/dev/sda1 on /var/lib/juju/storage/rootfs/0/0 type ext4 (rw,relatime,data=ordered)
/dev/sda1 on /srv/controller-backups type ext4 (rw,relatime,data=ordered)
full listing at https://pastebin.ubuntu.com/p/YwyQg4KRWp/
More info about the model at https://pastebin.canonical.com/p/cmrqvT9JPd/ (sorry, Canonical-only link).
There's nothing relevant in juju logs : https://pastebin.canonical.com/p/f2wWb26XcN/ (note, all the logs are from 201*8*)
Thanks
Note : this could be from an old version, as we upgraded to 2.5.4 fairly recently.