Hi,

Changing device class works? 

https://docs.ceph.com/en/latest/rados/operations/crush-map/#device-classes 
<https://docs.ceph.com/en/latest/rados/operations/crush-map/#device-classes>
ceph osd crush set-device-class <class> <osd-name> [...]

Étienne

> On 16 Aug 2021, at 12:05, mabi <m...@protonmail.ch> wrote:
> 
> Hello,
> 
> I noticed that cephadm detects my newly added SSD disk as type HDD as you can 
> see below:
> 
> $ ceph orch device ls
> Hostname  Path      Type  Serial          Size   Health   Ident  Fault  
> Available
> node1     /dev/sda  hdd   REMOVED         7681G  Unknown  N/A    N/A    No
> 
> How can I force the disk type to SSD instead of HDD?
> 
> Regards,
> Mabi
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