You need to stop all daemons, remove the mon stores and wipe the OSDs with ceph-volume. Find out which OSDs were running on which host (ceph-volume inventory DEVICE) and use ceph-volume lvm zap --destroy --osd-id ID on these hosts. Best regards, ================= Frank Schilder AIT Risø Campus Bygning 109, rum S14 ________________________________________ From: Michel Niyoyita <micou12@gmail.com> Sent: 06 January 2023 16:13:32 To: ceph-users Subject: [ceph-users] Erasing Disk to the initial state Hello team, I have deployed ceph cluster in production , the cluster composed by two types of disks HDD and SSD , and the cluster was deployed using ceph-ansible , unfortunately after deployment the HDD disks appear only without SSD , would like to restart deployment from scratch , but I miss the way on how to erase disk to the initial state . try to format disks but LVM comeback with disks. sda 8:0 0 7.3T 0 disk └─ceph--da4a5d58--73ef--473b--9960--371f837cb5ed-osd--block--6e800937--c4d2--4fc9--84ca--083c39d057a8 253:1 0 7.3T 0 lvm sdb 8:16 0 7.3T 0 disk └─ceph--773f50a1--79ed--4908--8f81--74f85efeb473-osd--block--9737a046--ba8b--4494--91f7--b80dd894df0b 253:7 0 7.3T 0 lvm sdc 8:32 0 7.3T 0 disk └─ceph--02000cec--fdbc--4def--967e--a7c32c851964-osd--block--c54d8182--b5e7--4c73--8d7b--7d24c7a3ce15 253:6 0 7.3T 0 lvm Kindly help me to sort this out. Best regards Michel _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io