How to delete the material records related to storage type

Dear SAP guru's,

I got a situation that if the material "XXXXXX" exists in two different storage type (let say 001 & 002 ) and the material needs to be removed out of one (Let say 002) to avoid the picking and putaway in future.

Inorder to accomplish an above requirement we tried the below cases

Case 1: By flagged the material "XXXXXX" under storage type 002 in MM06 transaction.But it didn't restrict the system on allocating and removing the stock from /to to the storage type 002.

Case 2:After we flagged the material for deletion under storage type 002 ,we used to MM71 transaction to archive & delete the material record that assocaited with the storage type 002 completely.

I am kind of queiries to know if there is any other method or procedure available to delete the storage type associated material records in SAP.

Please guide me with the other options.Thanks.

Regards,

John.