On 09.08.25 15:29, Robert Sander wrote:

Now I changed the drivegroup spec to explicitely name the DB devices:

service_type: osd
service_id: hdd2025
service_name: osd.hdd2025
placement:
   label: osd2025
spec:
   block_db_size: 100GB
   data_devices:
     rotational: true
     size: '16TB:'
   db_devices:
     paths:
     - /dev/sdb
     - /dev/sdc

I have to also list all the data devices by path:

service_type: osd
service_id: hdd2025
placement:
  label: osd2025
spec:
  block_db_size: 100GB
  data_devices:
    paths:
    - /dev/sdf
    - /dev/sdg
    - /dev/sdh
    - /dev/sdi
    - /dev/sdj
    - /dev/sdk
    - /dev/sdl
    - /dev/sdm
  db_devices:
    paths:
    - /dev/sdb
    - /dev/sdc

This works now on Ceph 19 but it depends on the HDDs having the same drive "letters" on each host.

Regards
--
Robert Sander
Heinlein Consulting GmbH
Schwedter Str. 8/9b, 10119 Berlin

http://www.heinlein-support.de

Tel: 030 / 405051-43
Fax: 030 / 405051-19

Zwangsangaben lt. §35a GmbHG:
HRB 220009 B / Amtsgericht Berlin-Charlottenburg,
Geschäftsführer: Peer Heinlein -- Sitz: Berlin
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