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What is the meaning of alert log entry "Verifying file header compatibility for 11g tablespace encry

edited Aug 30, 2018 1:40PM in Database Administration (MOSC) 6 commentsAnswered

HI,

I am seeing the following entries in alert log (this is after a database refresh from another environment):

Completed: ALTER DATABASE   MOUNT

Thu Aug 30 07:19:22 2018

ALTER DATABASE OPEN

Thread 1 opened at log sequence 22

  Current log# 1 seq# 22 mem# 0: /d01/oracle/CCBPROD/redo01.log

Successful open of redo thread 1

MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set

SMON: enabling cache recovery

[16122026] Successfully onlined Undo Tablespace 2.----------------- There is only one UNDO TS available, UNDOTBS1. Not sure why this entry is coming?

Undo initialization finished serial:0 start:3172870498 end:3172870888 diff:390 (3 seconds)

Verifying file header compatibility for 11g tablespace encryption..

Verifying 11g file header compatibility for tablespace encryption completed

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