> 2003.12.02 10:45:19  ANR2017I Administrator ADMIN issued command: DEFINE PATH
>                       adsm stklib srct=server destt=library device=lb0
> 2003.12.02 10:45:39  ANR8840E Unable to open device lb0 with error 2.
> 2003.12.02 10:45:39  ANR8418E DEFINE PATH: An I/O error occurred while
>                       accessing library STKLIB.

This is normal, since you need to specify "/dev/lb0" and not "lb0" in the 
"define path" command. What does the activity log show when defining the path 
with /dev/lb0 ?

> lsdev -C | egrep 'mt|lb' gives :
>
> lb0         Available 1c-08-00-6,0  N/A
> mt0         Available 1c-08-00-0,0  N/A
> mt1         Available 1Z-08-00-1,0  N/A
> mt2         Available 1Z-08-00-2,0  N/A
> rmt0        Defined   1Z-08-00-0,0  Other SCSI Tape Drive
> rmt1        Defined   1c-08-00-1,0  Other SCSI Tape Drive
> rmt2        Defined   1c-08-00-2,0  Other SCSI Tape Drive
> rmt3        Available 1Z-08-00-1,0  Other SCSI Tape Drive
> rmt4        Available 1Z-08-00-2,0  Other SCSI Tape Drive
> rmt5        Available 1c-08-00-0,0  Other SCSI Tape Drive

The "N/A" in the device description might mean that the device driver fileset 
is not properly installed or the devices are not properly configured. Can you 
send the output of "lslpp -l tivoli.tsm.\*" ?

Regards
Dmitri