Solution : https://service.sap.com/sap/support/notes/609384 (SAP Service marketplace login required)
Key words : 
remove total elapsed async write time mon element, terms db2 db6 db2udb udb fixpak reason, split mirror min rf pit incorrect, rs=0&uid=swg21165448 database problems caused, database crash - event monitors turned, ibm reports db2-related issues, db crash - crash recovery fails, rs=0&uid=swg21257602  aix, failing stored procedure calls, db2iupdt removed user files
Related Notes : 
       
| 1338478 | DB6: Slow DB Performance due to Internal V Locks | 
| 1159576 | DB6: Parallel backup of DPF split mirror returns SQL2406N | 
| 1159574 | DB6: Bad Page during / after RollFwd of split mirror DB | 
| 1154013 | DB6: DB problems in HADR environment | 
| 1099319 | DB6: ABAP TRUNCATE is locked | 
| 1068015 | DB6: SQL0902C (rc = 126) after restore and rollforward | 
| 1066104 | DB6: Alignment issues on HP PA Risc | 
| 996062 | DB6: sql error 0 | 
| 989109 | DB6: SQL0551N accessing SYSIBM.SYSDUMMY1 in DB6COCKPIT | 
| 988353 | DB6: Incorrect result from the LIKE predicate in Unicode DB | 
| 979077 | DB6: db2hmon traps on Solaris 10 | 
| 977842 | DB6: Number of missing logfile in Rollforward | 
| 963930 | DB6 on Windows 32-bit: Memory allocation failures | 
| 949471 | DB6: Home of db2<sid> is filled up by SQL table function | 
| 949223 | DB6: Database Crash due to error in vendor library | 
| 944948 | DB6: db2pd crashes DB2 instance | 
| 921403 | DB6: Corrupted file DB2TSCHG.HIS crashes DB | 
| 919024 | DB6: Deadlocks in the database catalog | 
| 908313 | DB6: Long PREPARE times for certain SQL statements | 
| 907508 | Database crashes, and subsequent crash recovery fails. | 
| 902912 | DB6: TechNote Registry Variable DB2_TRUNCATE_REUSESTORAGE | 
| 899162 | DB6: SQL22212 using Control Center on local database | 
| 896227 | DB6: tbspace not extendable after migr. v7->v8 via restore | 
| 892421 | DB6: Online Backups cannot be restored | 
| 891225 | DB6: SQL statement not coming back or poor performance | 
| 890096 | DB6: DB2 instance crash at first database connect | 
| 885526 | DB6: Database Applications consuming 100% CPU | 
| 879480 | DB6: Database stuck during Online Backup to Storage system | 
| 864555 | DB6: Database crash during SORT or REORG | 
| 864552 | DB6: DBHEAP leakage | 
| 843546 | DB6: PRUNE HISTORY | 
| 838225 | DB6: Database crash after 'log full' condition | 
| 830920 | DB6: Using DB2 HADR logfile may be deleted before archived | 
| 820473 | DB6: Snapshot function returns error or hangs | 
| 799570 | DB6: Database crash due to JDBC problem | 
| 761101 | DB6: Crash at or short after database creation | 
| 756526 | DB6: import of a table with lob data fails with SQL0902C | 
| 754233 | DB6: Trap In sqljcWriteBytesSplit | 
| 748487 | DB6: Database crash due to FETCH FIRST n ROWS | 
| 747018 | DB6: Extreme values for read / write / sort in snapshots | 
| 732507 | DB6: TRUNCATE TABLE dumps when run from remote AS | 
| 720800 | DB6: Database crash due to 'Memory allocation error' | 
| 710814 | DB6: DB Performance suddenly drops for one Statement | 
| 709351 | DB6: alter tablespace does no complete | 
| 697775 | DB6: Activating master data with navigation attributes | 
| 688647 | DB6: SAP BW and SAP NetWeaver BI Administration Tasks | 
| 666121 | DB6: Database Crash when Event Monitors are turned on | 
| 656537 | DB6: Database crash while importing / loading data | 
| 648486 | DB6: Database crash on DB2 UDB v7 FP9 and DB2 UDB v8 FP2 | 
| 644915 | DB6: DB2 version 8 on LINUX - db2start reduces shmmax | 
| 612253 | DB6: Incorrect results with complex BW queries | 
| 603981 | DB6: Installing V8.2 FixPaks (as of FP9) on Win NT/Win 2000 | 
| 603972 | DB6: Installing V8.2 FixPaks (as of FixPak 9) on UNIX | 
| 546262 | DB6:Administration & Performance on SAP BW, SAP SCM, SAP SEM | 
| 101809 | DB6: Supported Fix Packs IBM DB2 for Linux,UNIX and Windows |