I'm building an CEPH cluster with Proxmox 5.1, this is a new system just intalled, I'm adding disks to OSD, but for a reason I don't know there is one disk that is marked as LVM in USAGE column, so I cant add it to CEPH OSD.
How can I free this disk from LVM?
I think the disk is marked as LVM because in the installation process I made a mistake and use this disk for OS install, laterI reboot and use the right disk /dev/sdb.