Hello everybody, I have a misunderstanding about LVM configuration for OSD devices: In the pacific documentation cephadm/install (and it was already written in octopus documentation in section DEPLOY OSDS), it is written : “The device must not have any LVM state” (https://docs.ceph.com/en/pacific/cephadm/services/osd/#listing-storage-devices) whereas there are lots of reference to LVM configuration in other sections, such as in release notes : Pacific — Ceph Documentation or in ceph-volume — Ceph Documentation : "NEW DEPLOYMENTS" (https://docs.ceph.com/en/pacific/ceph-volume/index.html#new-deployments) For new deployments, LVM is recommended, it can use any logical volume as input for data OSDs, or it can setup a minimal/naive logical volume from a device So I’m not sure to understand and have two questions: 1/ Is it possible or not to deploy a Ceph Pacific configuration upon a LVM configuration for OSDs or is it not supported or is it just a problem linked to the use of ceph-adm instead of ceph-ansible ? 2/ Is it possible to migrate a Ceph Octopus configuration installed (thks to ceph-ansible) upon LVM configuration for OSDs towards a Ceph Pacific configuration without changing anything around LVM configuration ? Thanks Regards _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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