Have you checked MOS 977512.1? -joe From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of DIANNA GIBBS Sent: Friday, April 09, 2010 1:21 PM To: oracle-l@xxxxxxxxxxxxx Subject: 11.2 migration AIX - DST error - ORA-56920: a prepare or upgrade window or an on-demand or datapump-job loading Migrated database from 22.214.171.124 to 11.2. During DST steps have encountered this error. Error is documented but cannot determine how to get past it. Any ideas? From doc: error if a previous (prepare) window was not ended: SQL> EXEC DBMS_DST.BEGIN_UPGRADE(11); BEGIN DBMS_DST.BEGIN_UPGRADE(11); END; * ERROR at line 1: ORA-56920: a prepare or upgrade window or an on-demand or datapump-job loading of a secondary time zone data file is in an active state ORA-06512: at "SYS.DBMS_SYS_ERROR", line 79 ORA-06512: at "SYS.DBMS_DST", line 1054 ORA-06512: at line 1 Please consider the environment before printing this e-mail This e-mail, facsimile, or letter and any files or attachments transmitted with it contains information that is confidential and privileged. This information is intended only for the use of the individual(s) and entity(ies) to whom it is addressed. If you are the intended recipient, further disclosures are prohibited without proper authorization. If you are not the intended recipient, any disclosure, copying, printing, or use of this information is strictly prohibited and possibly a violation of federal or state law and regulations. If you have received this information in error, please notify Children's Medical Center Dallas immediately at 214-456-4444 or via e-mail at privacy@xxxxxxxxxxxxxx Children's Medical Center Dallas and its affiliates hereby claim all applicable privileges related to this information.