There seems to be a small inaccuracy in the IBM 3584 emulation. I noticed that the IBM 3584 library emulation reports two Log Sense pages. The SCSI reference only lists one (only has a TapeAlert page).
No big deal, but it trips my automatic library recognition code which takes the number of reported pages as one of the parameters in a signature. A real hardware 3584 passes, the emulation doesn't get recognized properly.