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Alert Log Messages

User_H95GNAug 31 2016 — edited Aug 31 2016

Oracle Installed:

On RAC

Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit

PL/SQL Release 11.2.0.3.0 - Production

"CORE 11.2.0.3.0 Production"

TNS for Linux: Version 11.2.0.3.0

NLSRTL Version 11.2.0.3.0 -

Linux: Red Hat 64 bit

Question:  In the Alert Log of my RAC server, I am seeing the following message quite frequently. Can someone tell me what it is doing? Is it a normal message?

Thanks for your help.

ALTER SYSTEM ARCHIVE LOG

2016-08-31 07:30:05.263000 -04:00

Thread 2 advanced to log sequence 28642 (LGWR switch)

  Current log# 22 seq# 28642 mem# 0: +DATA/DB_NAME/onlinelog/group_22.328.888632921

  Current log# 22 seq# 28642 mem# 1: +FRA/DB_Name/onlinelog/group_22.412.888632923

Archived Log entry 56971 added for thread 2 sequence 28641 ID 0xa684dfd6 dest 1:

2016-08-31 07:30:13.451000 -04:00

ALTER SYSTEM ARCHIVE LOG

Thread 2 advanced to log sequence 28643 (LGWR switch)

  Current log# 21 seq# 28643 mem# 0: +DATA/DB_Name/onlinelog/group_21.324.888632921

  Current log# 21 seq# 28643 mem# 1: +FRA/DB_Name/onlinelog/group_21.860.888632921

Archived Log entry 56973 added for thread 2 sequence 28642 ID 0xa684dfd6 dest 1:

2016-08-31 08:00:12.577000 -04:00

Thread 2 advanced to log sequence 28644 (LGWR switch)

  Current log# 24 seq# 28644 mem# 0: +DATA/DB_Name/onlinelog/group_24.331.888632923

  Current log# 24 seq# 28644 mem# 1: +FRA/DB_Name/onlinelog/group_24.416.888632925

Archived Log entry 56975 added for thread 2 sequence 28643 ID 0xa684dfd6 dest 1:

2016-08-31 08:30:04.105000 -04:00

ALTER SYSTEM ARCHIVE LOG

2016-08-31 08:30:05.934000 -04:00

Thread 2 advanced to log sequence 28645 (LGWR switch)

  Current log# 23 seq# 28645 mem# 0: +DATA/DB_Name/onlinelog/group_23.329.888632923

  Current log# 23 seq# 28645 mem# 1: +FRA/DB_Name/onlinelog/group_23.414.888632923

Archived Log entry 56977 added for thread 2 sequence 28644 ID 0xa684dfd6 dest 1:

2016-08-31 08:30:14.213000 -04:00

ALTER SYSTEM ARCHIVE LOG

Thread 2 advanced to log sequence 28646 (LGWR switch)

  Current log# 22 seq# 28646 mem# 0: +DATA/DB_Name/onlinelog/group_22.328.888632921

  Current log# 22 seq# 28646 mem# 1: +FRA/DB_Name/onlinelog/group_22.412.888632923

Archived Log entry 56980 added for thread 2 sequence 28645 ID 0xa684dfd6 dest 1:
This post has been answered by PS_orclNerd on Aug 31 2016
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#performance-availability, #real-application-clusters
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