The other possibility is that since the 2108 was replaced, there may be a small chance the /dev/rmtX mapping no longer matches what the previously assigned rmtX-to-element ID mapping was.
Which conceivably could produce this sort of error, if TSM and the library disagreed about what logical/physical drive matched up? What I'd suggest is: tsm> q drive f=d Then note each rmtX device name and what element ID it corresponds to. (in TSM) Then do some tracing to figure out which element ID each rmtX device actually physically corresponds to. Then you'll soon see if the TSM setup and the probed devices in AIX matches or not. If they don't match, update the TSM drive entries for rmtX and element ID ASAP. Should normally take only about 5-10 minutes of work to figure out the mapping from scratch. Keep good notes and issue a whole bunch of commands to assist in the logical-to-physical tracing. I just finished fixing all this after no end of fun with the 3584 setup and mismatched rmtX/element IDs. -Dan
