DX400 Factory Reset never completes

hello, i’m performing a factory reset on my WD Sentinel DX400 at the moment my computer shows resetting your server to the factory  default settings…  formatting the hard drives… i have been at this for close to an hour no indication to show progress… please how long does this process take? its a 12TB drive i just need to know if its really working or i’m just sstuck doing nothing please help