SoftRAID can attach a label to a disk. Just click on the tile for a disk and select “Add Label” from the “Disk” menu. You can use the “Blink Disk Light” feature (under the “Disk” menu) to make sure you are selecting the correct disk.
You can even select multiple disks and add a label to all of them. If you have more than one multi-disk enclosure, this makes it easy to keep track of which enclosure contains each of your disks.
Once you’ve added a label to a disk, SoftRAID will remember the label and always display it in tiles for that disk. It will also display that label on any error dialog, warning message, or log entry for that disk.