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Why is there "Successfully onlined Undo Tablespace 2" entry in alert log when we are using only one

edited Sep 4, 2018 11:34PM in Database Administration (MOSC) 19 commentsAnswered ✓

hi DBAs,

I am seeing few unrecognized entries in database alert log after a recent refresh. Can someone help?

starting up 1 dispatcher(s) for network address '(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))'...

starting up 1 shared server(s) ...

ORACLE_BASE from environment = /u01/oracle/app

Thu Aug 30 07:19:18 2018

ALTER DATABASE   MOUNT

Successful mount of redo thread 1, with mount id 2423474294

Database mounted in Exclusive Mode

Lost write protection disabled

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

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