Errormessage with prepare after renaming storagepools

Hi,

due to better understanding I have renamed all storagepools on one of our TSM-servers. I changed the poolnames also in the management-classes.
For instance:
AP2AVD was changed to AP-AVD

But now, when the prepare-command runs in our daily housekeeping, I get the messages:
ANR6915W PREPARE: Storagepool AP2AVD is not defined to the server.

What's gone wrong ? Can I correct the name ? But where ???

Thanks for any hint !!
Cu

Hubert