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mt problem with Python SCSI tape drive

mt problem with Python SCSI tape drive

Post by throwa.. » Fri, 09 Apr 1999 04:00:00



Seagate 12/24GB DDS-3 SCSI tape drive identifies itself as
Python 04106-XXX Rev 715G, running Redhat Linux v5.2.
I write multiple backup files to tape using the /dev/nst0 device,
and "mt -f /dev/nst0 status" reports the correct file number
status.  If I try any tape movement commands (other than rewind and
rewoffl) they don't move the tape, but mt returns success (0).
On a rewound tape running "mt -f /dev/nst0 fsf 1" returns immediately
and "mt -f /dev/nst0 status" reports location at filenumber 0.  
I've attempted this with multiple tapes with no success, but if I go
to another system (running Caldera OpenLinux v1.1 with HP SureStore 24)
I am able to successfully manipulate the tape
(i.e. "mt -f /dev/nst0 fsf 1" works)

Any help with this problem would be very appreciated!
Thanks,
Mike

 
 
 
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1. external scsi DDS tape drive is not visible to the mt

When 2.4.18-smp10 comes up on my RedHat 7.3 box tape drive does not show
up on the list shown by the kernel (it shows up on the list of drives
for the adapter during the system check predating kernel load):

SCSI subsystem driver Revision: 1.00
kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2
Red Hat/Adaptec aacraid driver, Aug  7 2002
scsi0 : percraid
   Vendor: DELL      Model: PERCRAID Mirror   Rev: 0001
   Type:   Direct-Access                      ANSI SCSI revision: 02
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: 35544576 512-byte hdwr sectors (18199 MB)
sda: Write Protect is off
Partition check:
  sda: sda1 sda2 sda3
Journalled Block Device driver loaded
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.

I load st.o module:
/sbin/insmod ./st.o

(no messages, should there have been some?)

/sbin/lsmod
Module                  Size  Used by    Not tainted
st                     29940   0  (unused)

mt -f /dev/st0 status
/dev/st0: No such device

/dev/st0a: No such device

/dev/st0l: No such device

/dev/st0m: No such device

/dev/st1: No such device

/dev/st2: No such device

Ideas?
Should I compile tape support in?

mt -f /dev/tape status
/dev/tape: No such device

lrwxrwxrwx    1 root     root            8 Oct  9 13:12 /dev/tape ->
/dev/st0

2. Watch for process start

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13. Seagate Python Tape drive - problems?


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