Better layout of the text: I'm replacing the HDD of osd.2 in my squid cluster following the provided documentation: https://docs.ceph.com/en/squid/rados/operations/add-or-rm-osds/ The OSD was yet out and the daemon down. The osd.2 is destroyed: ceph osd destroy 2 --yes-i-really-mean-it I've stopped the node and replaced the HDD. Ceph (graphic board) see the HDD as available. But I'm unable to go further with the ceph-volume commands: # ceph-volume lvm zap /dev/sda --> RuntimeError: /dev/mapper/osvg-rootvol not found. # ceph-volume lvm prepare --osd-id 2 --data /dev/sda --> RuntimeError: /dev/mapper/osvg-rootvol not found. Something wrong in my cluster or a step is missing in the documentation ? Le 07/09/2026 à 11:38, Patrick Begou a écrit :
Hi
I'm replacing the HDD of osd.2 in my squid cluster following the provided documentation: https://docs.ceph.com/en/squid/rados/operations/add-or-rm-osds/
The OSD was yet out and the daemon down.
The osd.2 is destroyed:
cephosddestroy2--yes-i-really-mean-it I've stopped the node and replaced the HDD. Ceph (graphic board) see the HDD as available. But I'm unable to go further with the ceph-volume commands: # ceph-volume lvm zap /dev/sda --> RuntimeError: /dev/mapper/osvg-rootvol not found. # ceph-volume lvm prepare --osd-id 2 --data /dev/sda --> RuntimeError: /dev/mapper/osvg-rootvol not found.
Something wrong in my cluster or a step is missing in the documentation ?
Thank
Patrick
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