It would be useful to be able to search for Beaker systems which have solid-state disks. We can enhance lshw to report whether a disk is an SSD (actually it has some code to report rotation speed already, where 0 should indicate an SSD, but that doesn't seem to be working on here) and then store that in Beaker. The best way to detect if a disk is an SSD is apparently to inspect /sys/block/sd*/queue/rotational, where 0 indicates that it's an SSD.