I can also confirm that the Iomega USB REV drive in fact works.
I'm using the following:
SME Server release 7.2
Linux sme-test 2.6.9-55.0.9.EL #1
I've connected the drive via usb, and received the following message in the 'dmesg' from the server (about the drive)
usb 1-7: new high speed USB device using address 3
scsi3 : SCSI emulation for USB Mass Storage devices
Vendor: Iomega Model: RRD Rev: 062B
Type: CD-ROM ANSI SCSI revision: 02
sr0: scsi3-mmc drive: 125x/125x caddy
Attached scsi CD-ROM sr0 at scsi3, channel 0, id 0, lun 0
USB Mass Storage device found at 3
After checking out /etc/fstab I found the following new line.
/dev/scd0 /media/cdrom1 auto pamconsole,exec,noauto,managed 0 0
I then modified it to read /media/tape, and moved the /media/cdrom1 dir to /media/tape.
then issued the command, mount /media/tape. And low and behold, there it was.
Be sure and unmount the device when it's not in use (just good practice)
I then setup the job in backup2 using the usb option and the correct new mount point.
It works wonderfully without problem, Hopefully this information will be helpful to someone else with the same issue.
Thanks