Hey guys, I’m struggling with the ceph-volume command in nautilus 14.2.6. I have 12 disks on each server, 3 of them ssds (sda,sdb,sdc) and 9 spinning disks (sdd .. sdl). Initial deploy witch ceph-volume batch works fine, one ssd is used for wal and db for 3 spinning disks. But running the ‘ceph-volume lvm batch --report /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl’ after the initial deploy I get 'Aborting because strategy changed from bluestore.MixedType to bluestore.SingleType after filtering' Looking at /var/log/ceph/ceph-volume.log I see: [ceph_volume.devices.lvm.batch][INFO ] Ignoring devices already used by ceph: /dev/sdd, /dev/sde, /dev/sdf, /dev/sdg, /dev/sdh, /dev/sdi, /dev/sdj, /dev/sdk, /dev/sdl I do understand that before filtering I have MixedType (ssd + sata) and after filtering (only ssds left) it is single type. So the error message is correct. But why does ceph-volume filter out the spinning disks with data partitions but not the ssds with wal/db? Is this intended? Regards Felix IT-Services Telefon 02461 61-9243 E-Mail: f.stolte@fz-juelich.de ------------------------------------------------------------------------------------- ------------------------------------------------------------------------------------- Forschungszentrum Juelich GmbH 52425 Juelich Sitz der Gesellschaft: Juelich Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498 Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher Geschaeftsfuehrung: Prof. Dr.-Ing. Wolfgang Marquardt (Vorsitzender), Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt, Prof. Dr. Sebastian M. Schmidt ------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------