I just went through a grueling afternoon of crawling around with our asset management people putting barcodes on a bunch of our NetApp gear. None of it seems to have a pull-out tab with the serial number, or a good spot to stick an asset tag - keeping in mind that easily removable plastic trim pieces are not suitable.
Please do similar to what Dell does and add little pull-out tabs with the model and serial info on one side, and a space for a 0.75"x1.5" barcode sticker on the other. :)