Hi All,

I want to install an old Sun's tape drive (72-144 Gbyte 4mm DDS-3 Autoloader) in my new dell server (OS: RedHat Linux 8.0).

I added a SCSI card (AHA-2940) and connected the tape drive with the SCSI card by some cable. When I restart the server, the system automatically detect the new hardware (the scsi controller card).

After this, I tried to install mt tape utilities
$ mt -f /dev/st0 status
$ /dev/st0 no such device

The system does not recognize the tape drive. I am wondering anything I need to do in order for the system to recognize the tape drive.

I am a newbie to linux and I really appreciate your suggestions! Thanks!

Sandy

You can first go to /proc to see if there is the device detect
or you can lspci

dmesg|grep SCSI

Hope this can help

See what modules SCSI modules are being loaded with lsmod. You should have:
scsi_mod
st
sd_mod

I tried lsmod, and I can see
sd_mod 13552 12
scsi_mod 107144 3 [sg megaraid sd_mod]

But there is no st. Does that mean that st module has not been loaded? What do I need to do? Thanks for suggestions!

The first thing to check would be
to see whether the device is recognized
by the adaptec as such...
less /proc/scsi

If it's there, and the scsi_mod is loaded,
try
modprobe st
(as root)

Cheers,
Tink

How could I tell whether the device is recognized from $less /proc/scci ?

The output of this command is
total 0
dr-xr-xr-x 4 root root 0 May 12 19:23 ./
dr-xr-xr-x 118 root root 0 May 12 09:03 ../
dr-xr-xr-x 2 root root 0 May 12 19:23 megaraid/
-r--r--r-- 1 root root 0 May 12 19:23 scsi
dr-xr-xr-x 2 root root 0 May 12 19:23 sg/


Sorry for this stupid question but I am really a newbie in Linux.
Thanks!

Sandy

No worries ...

That's the output of
ls /proc/scsi
not
less /proc/scsi

less /proc/scsi
could look like this:
:)

Cheers,
Tink

That is the output of $less /proc/scsi in my computer. Kind of weird. Is there any other way to check this information besides this command?

I really appreciate your suggestion. Thanks!

Sandy

Oh doh ... I apologise.

try
less /proc/scsi/scsi

:/

/me is tired ... :}

Cheers,
Tink

You can manually create those devices if you like

cd /dev

mknod st0 c 9 0

mknod nst0 c 9 128

Thanks, Tinkster. The output of $less /proc/scsi/scsi from my computer is:

Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: MegaRAID Model: LD0 RAID5 69356R Rev: 2.01
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 04 Id: 06 Lun: 00
Vendor: PE/PV Model: 1x6 SCSI BP Rev: 0.29
Type: Processor ANSI SCSI revision: 02

It seems the system does not recognize the device.

Hi, Michaelk, st0 already exists under /dev. But when I tried
$mt -f /dev/st0 status

It pops up "no such devices" :-(

Kind of weird. Thanks for you guys' kindly suggestions:-)

Sandy

Now it all bubbles down to SCSI-id,
termination & cable-issues ...

Good luck!

Cheers,
Tink