Supposing that I have successfully mapped a volume to SDC Linux host and SDC device /dev/scinia can be listed in Linux host as below:

# ls -l /dev/disk/by-id/ |grep scini

lrwxrwxrwx. 1 root root 12 Jan 25 16:37 emc-vol-189d8c9c1f41f458-a7b0341500000001 -> ../../scinia

If this SDC device is no longer in use by SDC Linux host anymore, how do I properly remove this SDC device /dev/scinia in host level before I unmap it in ScaleIO?

Thanks for help.