Solution : https://service.sap.com/sap/support/notes/1429082 (SAP Service marketplace login required)
Key words :
choose 'space -> single table analysis', run reorg' option, relevant support package, system deactivates compression, table reason, dba cockpit, deactivate compression, 'disable compression, terms db2udb, programming error
Related Notes :
1309424 | DB6: DBA Cockpit Correction Collection SAP Basis 7.01 / 7.11 |