external SCSI tape drive DAT 72 problem Solaris 10

Question

I have solaris 10 sparc running and working very well but i have problem with external SCSI tape drive DAT 72 problem it seems to me the tape drive is manufactured by SUN microsystems when i ran mt -f /dev/rmt/0 status it reveals the following output

bash-3.00#  mt -f /dev/rmt/0 status
/dev/rmt/0: No such file or directory

when i ran ls -l it reveals the following output

ls -l /dev/rmt/0
lrwxrwxrwx   1 root     root          43 Sep 20  2006 /dev/rmt/0 -> ../../devices/pci@8,600000/scsi@1,1/st@3,0:

it seems to me everything is okay SCSI cable is connected properly to Tape device and to server as well the tape has SCSI termination dongle as well and connected properly to Tape device as well any ideas would be a great assist Thanks in advance

Answer 1

When you look at the symlink destination "/devices/pci@8,600000/scsi@1,1/st@3,0:" does that exist.

Answer 2

i think it doesn't exist under the following path bash-3.00# ls -la ../../devices/pci\@8\,600000/scsi\@1\,1

bash-3.00# ls -la  ../../devices/pci\@8\,600000/scsi\@1\,1
total 4
drwxr-xr-x   2 root     sys          512 Sep 20  2006 .
drwxr-xr-x   5 root     sys          512 Feb  1  2008 ..
bash-3.00#

here's the output one level up when i ran

bash-3.00# ls -l ../../devices/pci\@8\,600000/scsi\@1

bash-3.00# ls -la  ../../devices/pci\@8\,600000/scsi\@1
total 6
drwxr-xr-x   3 root     sys          512 Jul 10 15:51 .
drwxr-xr-x   5 root     sys          512 Feb  1  2008 ..
drwxr-xr-x   2 root     sys          512 Jul 10 15:51 st@3,0
crw-rw-rw-   1 root     sys       33, 538 Jul 10 15:51 st@3,0:
crw-rw-rw-   1 root     sys       33, 602 Jul 10 15:51 st@3,0:b
crw-rw-rw-   1 root     sys       33, 606 Jul 10 15:51 st@3,0:bn
crw-rw-rw-   1 root     sys       33, 538 Jul 10 15:51 st@3,0:c
crw-rw-rw-   1 root     sys       33, 602 Jul 10 15:51 st@3,0:cb
crw-rw-rw-   1 root     sys       33, 606 Jul 10 15:51 st@3,0:cbn
crw-rw-rw-   1 root     sys       33, 542 Jul 10 15:51 st@3,0:cn
crw-rw-rw-   1 root     sys       33, 530 Jul 10 15:51 st@3,0:h
crw-rw-rw-   1 root     sys       33, 594 Jul 10 15:51 st@3,0:hb
crw-rw-rw-   1 root     sys       33, 598 Jul 10 15:51 st@3,0:hbn

output turncated for brevity

any idea what is the entry highlighted with bold below form previous ls -l output

crw-rw-rw- 1 root sys 33, 538 Jul 10 15:51 st@3,0:

Answer 3

sorry for inconvenience the instance number for external tape is 1 not 0

it works now very fine

bash-3.00# mt -f /dev/rmt/1 status
HP DAT-72 tape drive:
   sense key(0x6)= Unit Attention   residual= 0   retries= 0
   file no= 0   block no= 0
bash-3.00#

Answer 4

# cfgadm -al 
Ap_Id                          Type         Receptacle   Occupant     Condition
...
c3                             scsi-bus     connected    configured   unknown
c3::rmt/8                      tape         connected    configured   unknown

last entry means that a tape drive is available, the device is : /dev/rmt/8