Cannot see my Quantum DLT 7000

[Richard Ace]

HP replaced my DLT drive

#lssf /dev/rmt/9mn
stape card instance 15 SCSI target 5 SCSI LUN 0 at&t no rewind best density avai
lable at address ??? /dev/rmt/9mn

Though the /dev/rmt/9mn file exists.

Question: If I do a rmsf on /dev/rmt/9mn and then insf -H /P/A/TH/dev/rtm/9mn -e should that rectify the problem, or could it be the Scsii Id not set correctly on the unit.

I have the correct driver in lsdev.

Any other pointers

Cheers

Rich

[John Palmer]

Have you run ioscan?

ioscan -fnC tape

It's possible that the SCSI address has changed.

Regards,
John

[David Burgess]

In the past I've done things like :-

Can the system see the tape drive
ioscan -fnCtape?

Can the kernel see the tape drive?
ioscan -fnkCtape

Delete the device files for the tape drive and recreate all missing device files with
insf -e

Check the scsi termination is ok.

Check for any lbolt errors in dmesg or /var/adm/syslog/syslog.log

Check the driver is in the kernel. Sounds like it is.

If the scsi id has changed you will find that when you run a backup, you create a huge file in /dev and the users moan that the system is slow. Especially when / fills up!

Worst case reboot.

HTH
Dave.

[David Burgess]

Forgot to say. If the scsi id has changed then make sure any backups write to the new device file for the new scsi id or set the scsi id back to what it was and reboot.

Dave.

[Carlos Fernandez Riera]

run
ioscan -fCtape



find your dlt drive...

Class I H/W Path Driver S/W State H/W Type Description
==================================================================================
tape 0 0/0/1/0.3.0 stape CLAIMED DEVICE HP C1537A
tape 1 0/12/0/0.1.17.255.0.0.1 stape CLAIMED DEVICE QUANTUM DLT7000



The S/W must be CLAIMED.


insf -e -C tape

now run
ioscan -fnkCtape to see the actual /dev/rmt/...

[Richard Ace]

Cheers All

That hit the nail on the head

That was the one


If the scsi id has changed you will find that when you run a backup, you create a huge file in /dev and the users moan that the system is slow. Especially when / fills up!

Worst case reboot.


Cheers

Rich