Why Archive, FRA Diskgroup Gets Mounted / Dismounted ?

(Doc ID 603204.1)

Last updated on MARCH 22, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 10.1.0.2 to 11.1.0.7 [Release 10.1 to 11.1]
Information in this document applies to any platform.
***Checked for relevance on 29-Jul-2013***

Goal

Why do we often see these in the DB alert log?

. 
. 
Thu May 29 23:54:13 2008 
Thread 1 advanced to log sequence 5 
Current log# 4 seq# 5 mem# 0: +DBDG/dws/onlinelog/group_4.295.656033673 
Thu May 29 23:54:13 2008 
SUCCESS: diskgroup FLASHDG was mounted 
Thu May 29 23:54:39 2008 
SUCCESS: diskgroup FLASHDG was dismounted 
. 
. 

Solution

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