Hi, I am trying to understand the wait event: 'KSV master wait'. I run 'drop tablespace TBSNAME including contents and datafiles;' from sqlplus and I see that my session waits (for a long time) on 'KSV master wait'. What is that? My environment is: Oracle 10.2.0.2 on Linux x86 + RAC + ASM. Thanks, Luca -- //www.freelists.org/webpage/oracle-l