I suspect that when the hardware swap was done, the SCSI address for your 
hardware were changed. You will need to change your path definitions so that 
the element number (in the drive definitions) matches the same physical drive 
as the device name.
 
Note: the behavior you describe is very typical for such a situation--tapes are 
mounted by element number, but seem to be dismounted by device name.
 
--
Mark Stapleton

        -----Original Message----- 
        From: Camilo A. Marrugo [mailto:camilo AT DIALTONE DOT COM] 
        Sent: Wed 7/23/2003 10:53 AM 
        To: ADSM-L AT VM.MARIST DOT EDU 
        Cc: 
        Subject: Issues with DLT7000 Tape Drives
        
        

        Good Morning,
        
        Have any body ever experience the following or something similar 
before. I am running TSM 5.1.5 on a W2K server, the tape library is a 9740 STK 
with 5 DLT7000 tape drives.
        
        Recently we had to replace the Changer (Arm) of the library because it 
died on us. After that happened I was not able to talk to the library at all 
from tivoli. So what I did is delete the drives and the library, and recreate 
them once again.
        
        Now whats happening, tivoli will start a migration proccess, and it 
will sent the mount command to the library, the library will mount the tape, at 
this point tivoli does not recognizes that the tape is mounted, it hangs like 
that for about 5 min, and then it says that the tapedrive goes offline, and 
that inside of it there is something (not saying wich tape it is), and to 
remove it manually.
        
        Here is the error:
        
        ANR8302 (OP=OFFL, Error Number=21, CC=203, KEY=02, ASC=04, ASCQ=03)
        
        Any help will be greatly appreciated.
        
        Thanks,
        
        Camilo A. Marrugo
        Data Storage Systems Administrator
        camilo AT dialtone DOT com - http://www.interland.com
        Voice: 305.717.6600
        Interland - Dedicated Servers, Dedicated Service