DLT problem - No such device or address

[rgaskill1]

Hi,
I had a faulty DLT replaced on my E450, but the drive could not see that a tape was loaded. Tried to resolve this by doing a reconfiguration boot, but now am getting the following :-

nimbus:/> mt status
/dev/rmt/0n: No such device or address

Also the device is not showing when I do iostat -En.

Any ideas?

 

[sdeakin]

does the device appear when you do a 'prtconf -v' ?

You may find that it is installed as instance #1, so see if you have a /dev/rmt/1n on your system. If you have and you want it to be 0n, you need to edit your /etc/path_to_inst file


Scotty

 

[tuka]

After doing a reconfig boot the system built a new device # in /dev/rmt. Load a tape into the DLT and try your mt -f
on the different devices, i.e. , /dev/rmt/0 status, /dev/rmt/1 status, /dev/rmt/2 status , etc.

If you only have the one DLT installed I would delete the entries in /dev/rmt and do a devfsadm.

# cd /dev/rmt
# rm 0*
# rm 1*
# rm 2*
Remove all the entries.


# devfsadm -C (do a man on devfsadm to see what this does)

# devfsadm -c tape (this will configure the tape drive-
without a reboot configuration)

 

[SamBones]

If the device in [tt]/dev[/tt] disappeared after a reconfig reboot, then the device may not be alive on the SCSI bus. Try bringing the machine down to the [tt]ok[/tt] prompt and doing a [tt]probe-scsi[/tt] or [tt]probe-scsi-all[/tt] to see if it's alive. If the tape doesn't show up here, a reconfig reboot will just delete all logical and physical devices related to it.

If this is a replacement drive and you're having trouble with it too, maybe your old DLT wasn't bad after all. It's possible you've got a bad controller or cable. Or some other problem.

Hope this helps.

 

[rgaskill1]

Thanks for the info. It's looking like this may be a hardware fault so I have arranged for another replacement drive.