Joe Howell wrote

>>As the volume was created three weeks or so ago, and my oldest TSM log
>>isn't that old, I can't pursue this any further.  Somehow this volume
got
>>created and reused without one of TSM or RMM "knowing" about it, but I
>>can't figure out how.

Try looking at TSM volhist, z/OS system logs and RMM logs for references
to your tape.
Might be a good idea to check what RMM thinks are your onsite and offsite
tapes with what TSM thinks,
to see how far your problem goes.
How long have you been using your z/OS1.4,TSM, RMM, 3494 ATL. Have there
been any changes to any of these components or the way you use them
recently.
John







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