The text on the racks/devices is sometimes to big for the rectangle the rack/nondevice is using:

My suggestion is to lower the text size or extend it on new line when the name is too long automatically or give the option to increase/decrease text-size. So this can be matched in the rectangle for readability. Other option could be to shorten the name with RACK-01-X... instead of RACK-01-X4567.
Maybe place active at the bottom with smaller text size so that it is not bigger then the rack/nondevice name
We could also add the option under active to let you know how full the rack capacity is.
See example:
