can't mount my SSD

Hi,

I got 2 NAS , with almost the same setup. They are on OMV6.

They got 1 SSD where i installed omv and some SATA HDD in merge FS. As far i can't put my plex data base ()sqlite3 problem) on my mergeFS, i'd like to use the SSD.

On both systems, the SSD aren't visible.

My screenshots are from the same NAS, The SSD i'd like to use is the sdc :

i've tryed to mount it but omv doesn't see it

i've tryed to create a file system, it's the same.

Thanks for the help

thanks you very much, it's working fine !