Ok, I understand. how can I define this when creating a storage node? neither cli nor gui can I find corresponding options. how are the "replication-groups" to be understood? is it desirable to put all three storage-nodes into one group or should each storage-node have its own group? greez & thx, volker... Von: Dinescu, Stefan [mailto:Stefan.Dinescu@windriver.com] Gesendet: Dienstag, 30. Oktober 2018 10:48 An: von Hoesslin, Volker; 'starlingx-discuss@lists.starlingx.io' Betreff: RE: move storage node in replication group Hello, The default replication of ceph is 2. Nodes are assigned to each group automatically and cannot be manually changed. if you want replication 3, you need you set that before installing storage nodes. ________________________________ From: von Hoesslin, Volker [Volker.Hoesslin@swsn.de] Sent: Monday, October 29, 2018 5:43 PM To: 'starlingx-discuss@lists.starlingx.io' Subject: [Starlingx-discuss] move storage node in replication group hello, i have 3 storage nodes and after provisioning nodes 1+2 are in replication group 0 and node 3 are in replication group 1?! how can i move node 3 to group 0? greetings, volker