Hi List, Quick Q: We've a dataguard physical standby that we cloned, and the clone bonked on: GATHER_STATS_JOB encountered errors. Check the trace file. Errors in file /u01/app/oracle/admin/DSTEST01/bdump/dstest01_j001_10559.trc: ORA-01578: ORACLE data block corrupted (file # 185, block # 36931) ORA-01110: data file 185: '/u07/oradata/DSTEST01/edwindx37_4m.dbf' ORA-26040: Data block was loaded using the NOLOGGING option We see this error multiple times, all for various datafiles within one of our index tablespaces. I checked the primary and oops, it appears that it was *not* in force logging mode. This has since been corrected, but my question is this: Do we have to rebuild the standby to ensure consistency? There are zero errors on the physical standby, and the only indication of a problem is the above after a cloning operation. Thanks- Chris -- //www.freelists.org/webpage/oracle-l