----- Gerhard Ginzler wrote: -----

>I think, the problem is Open APAR IC48382, which causes the
>significant >performance degradation. We start backup stgpool
>xy to copypool, and 4 hours later we get either ANR2111W (There
>is no data to process for stgpool xy) or the backup process
>starts. The backup process itself is very slow, seems to hang.
>Very annoying ...

You are quite right. The question I should have asked is: When is
there likely to be a TSM server maintenance level that fixes both
IC48382 and IC47731 (preferably without introducing a third
crippling performance bug)?