Hi, to have more meaningful names, I also prefer LVM for the db drive. Create the volume on OSD by hand too: vgcreate ceph-block-0 /dev/sda lvcreate -l 100%FREE -n block-0 ceph-block-0 DB Drive: vgcreate ceph-db-0 /dev/nvme0n1 lvcreate -L 50GB -n db-0 ceph-db-0 lvcreate -L 50GB -n db-1 ceph-db-0 ... ceph-volume lvm create --bluestore --data ceph-block-0/block-0 --block.db ceph-db-0/db-0 Unfortunately this is not ceph-disk, as requested in the original question. so long Thomas Am 22/10/2019 um 08:17 schrieb Ingo Schmidt:

Hi Frank

We use such a setup on our nautilus cluster. I manually partitioned the NVME drive to 8 equally sized partitions with fdisk (saved the partition layout to a file for later reference). You can then create OSDs with

...

ceph-volume lvm create --bluestore --data /dev/sd<x> --block.db /dev/nvme0n1<partition-nr>

This will create an OSD on /dev/sdx and put block.db and the WAL to the partition on the NVME.

greetings Ingo

------------------------------------------------------------------------ *Von: *"Frank R" <frankaritchie@gmail.com> *An: *"ceph-users" <ceph-users@ceph.com> *Gesendet: *Dienstag, 22. Oktober 2019 03:06:55 *Betreff: *[ceph-users] multiple nvme per osd

Hi all, Has anyone successfully created multiple partitions  on an NVME device using ceph-disk?

If so, which commands were used? 

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