Eugen Block wrote: : Hi Jan, : : I think you're running into an issue reported a couple of times. : For the use of LVM you have to specify the name of the Volume Group : and the respective Logical Volume instead of the path, e.g. : : ceph-volume lvm prepare --bluestore --block.db ssd_vg/ssd00 --data /dev/sda Eugen, thanks, I will try it. In the meantime, I have discovered another way how to get around it: convert my SSDs from MBR to GPT partition table, and then create 15 additional GPT partitions for the respective block.dbs instead of 2x15 LVs. -Yenya -- | Jan "Yenya" Kasprzak <kas at {fi.muni.cz - work | yenya.net - private}> | | http://www.fi.muni.cz/~kas/ GPG: 4096R/A45477D5 | This is the world we live in: the way to deal with computers is to google the symptoms, and hope that you don't have to watch a video. --P. Zaitcev _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com