mc command and C7147C8 Ultrium LTO Autoldr 9/1.

[Nelson Dantas_1]

Hi all,
For example, i execute the following command to move a tape from slot 2 to drive 1
mc -p /dev/rac/c3t0d0 -s S2 -d D1 ...... function perfectly!
now, the following output shows the new arrangement of the tapes,
mc -p /dev/rac/c3t0d0 -r DS

DT_slot_1 empty
ST_slot_1 empty
ST_slot_2 full

It should be in the drive, but the inventory shows that the tape is still in the slot 2.
The inventory data is correct, the problem is that is that when i run the inventory
command the robot brings the tape back to the slot 2.
What could be causing the problem?

[Wouter Jagers]

I'm not sure (not near my boxes right now), but the first thing I would try is to leave some (unneeded) spaces away:

mc -p /dev/rac/c3t0d0 -sS2 -dD1
mc -p /dev/rac/c3t0d0 -rSD

Might as well change nothing, but worth the shot..

regards
Wouter

[Michael Tully]

Using the spaces or not are the same. Was there some message displayed after the command was executed?

[Nelson Dantas_1]

Michael Tully,
The command returns no error messages. It does the inventory correctly, the only problem is that when the command is issued, and there is a tape in the drive, instead of reporting that the drive is full, the library move the tape from the drive to the slot, and then gives the inventory with the drive as been free and slots full. Simplifying, the question is why the library do the move before giving the inventory and how to correct this?
Thanks a lot.

[Helen French]

Just a thought:

Are you using the right device file? Is /dev/rac/c3t0d0 is the device file for the media changer? Check with this:

# ioscan -fn

Is the device file has been created by you or the system itself? Which driver is being used by that device - spt? stape, tape2?

[Angus Crome]

I don't know anything about that Library Unit, but it sounds like it has an auto-unload feature, and it is turned on. Since you are performing the load command at the hardware level (not through software "OmniBack, Netbackup, etc"), it probably looks at the device and thinks it is ready for unload. If it has a front panel display, you should check through the setting for this. If it has a web interface, it would probably be in there.