As suggested by this thread you could try
ls -l /dev/disk/by-id/
Type: Posts; User: blackmoses2003; Keyword(s):
As suggested by this thread you could try
ls -l /dev/disk/by-id/
The following quote is from the man page
So, accordingly, I think the command should have been
mdadm /dev/md127 -f /dev/sdc1 -r /dev/sdc1
Wish you the best