Solution : https://service.sap.com/sap/support/notes/540158 (SAP Service marketplace login required)
Summary : 
      
Key words : 
urb   log by4=> sql error -901 performing pre, /400 client copy sql0901 sa95563 package sqlpkg reason, r3<sid>32000c  package, log by0=> sql-systemfehler, job=018434/<user>/wp00 [dbtran  6991 ], work process job log, remote client copy terminates, 03 2002c   error => error -901, r3<sid>data/, table viea03 [dbtran  6991 ]
Related Notes : 
       
| 541311 | CC-INFO: Parallel processes FAQ | 
| 517589 | iSeries: Client copy performance | 
| 212727 | CC-INFO: FAQs for parallel processes up to Release 4.6D | 
| 63037 | AS/400: Deleting SQL Packages |