Maybe this helps: https://heiterbiswolkig.blogs.nde.ag/2025/02/05/cephadm-migrate-db-wal-to-ne... Note that cephadm shell is always executed locally on the host, not remotely, there’s no ‚--host‘ parameter. Zitat von Steven Vacaroaia via ceph-users <ceph-users@ceph.io>:
Hi,
I have a 7 nodes cluster deployed using cephadm with a mixt of HDD, SSD and NVME
I would like to reconfigure some of the HDD OSDs and put their DB on NVME There are only 6 x18 TB OSDs and there is a dedicate , "empty" 1.6 TB NVME installed for this purpose
The cluster is configured as EC 4+2 and is not under heavy use
I would appreciate if you could advise what is the best way of achieving that
As far as I was able to find, there are these 2 options
1. remove and redeploy OSDs 2. use ceph-volume
Option 1 is pretty straight forward but more time consuming
For Option2 though I was not able to find any clear instructions
The first thing I stumbled one was how to use ceph-volume in a cephadm managed cluster on a host that does not have it
( "cephadm shell --host HOSTNAME -- ceph-volume ls" is complaining about "unrecognized arguments --host")
Any help,links,suggestions will be greatly appreciated
Steven _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io