You are right, its "st" and it shows up scsi_transport_spi 25281 1 aic7xxx scsi_mod 134761 6 sd_mod,usb_storage,st,sg,aic7xxx,scsi_transport_spi also dmesg shows the following entries: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 7.0 <Adaptec 2940 SCSI adapter> aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs Vendor: Quantum Model: DLT4000 CPQ DRV Rev: D473 Type: Sequential-Access ANSI SCSI revision: 02 target0:0:6: Beginning Domain Validation target0:0:6: FAST-10 SCSI 10.0 MB/s ST (100 ns, offset 15) target0:0:6: Domain Validation skipping write tests target0:0:6: Ending Domain Validation and then further down: scsi 0:0:6:0: Attached scsi generic sg0 type 1 st: Version 20050830, fixed bufsize 32768, s/g segs 256 st 0:0:6:0: Attached scsi tape st0 st0: try direct i/o: yes (alignment 512 B) So the system definitely sees the controller and tape drive, just any IO to it hangs. I'm wondering, do I have a good drive? > On Wed, Nov 08, 2006 at 16:18:10 -0500, > Jeffrey Ross <jeff@xxxxxxxxxx> wrote: >> >> When I send any commands to /dev/st0 the application just sits there, a >> "mt -f /dev/st0 stat" just hangs >> >> lsmod does not show the "mt" device, should it be there and if so, how >> do >> I load it? > > I have a dat tape on a scsi controller on an fc5 system and I don't see > an 'mt' module loaded using lsmod. >