How to Manually Determining and Resolving Archive Gaps in ASM [ID 1271114.1]

How to Manually Determining and Resolving Archive Gaps in ASM (Copy archivelog in ASM using RMAN) [ID 1271114.1]
		修改時間 04-JAN-2012 型別 HOWTO 狀態 MODERATED

In this Document

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Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.1 to 11.2.0.1 - Release: 10.2 to 11.2
Information in this document applies to any platform.

Goal

The note describes how to find a GAP and resolve it in case of ASM on both primary and standby or ASM on either primary or standby.

Solution

1. Check for the GAP,

On standby,



2. On primary Check the location where the missing logfiles exist.

SELECT NAME FROM V$ARCHIVED_LOG WHERE THREAD#= AND DEST_ID= AND SEQUENCE# BETWEEN AND ;


For example,

SQL> SELECT * FROM V$ARCHIVE_GAP;

THREAD# LOW_SEQUENCE# HIGH_SEQUENCE#
----------- ------------- --------------
1 1113 1115


SQL> SELECT NAME FROM V$ARCHIVED_LOG WHERE THREAD#=1 AND DEST_ID=1 AND SEQUENCE# BETWEEN 1113 AND 1115;

NAME
--------------------------------------------------------------------------------
+DGROUP2/PROD/datafile/ARC00001113_0732997804.001
+DGROUP2/PROD/datafile/ARC00001114_0732997804.001
+DGROUP2/PROD/datafile/ARC00001115_0732997804.001

3. Use RMAN to copy to someother local filesystem.

RMAN>copy archivelog '+DGROUP2/PROD/datafile/ARC00001113_0732997804.001' to '/u01/app/oracle/ARC00001113_0732997804.001';

Do the same for all the logs.

4. SCP to standby.

scp /u01/app/oracle/ARC00001113_0732997804.001 drs1.idc.oracle.com:/u04/standby/

5. Register manually by mentioning the copied file location.

On standby,

SQL>alter database register logfile '/u01/app/oracle/ARC00001113_0732997804.001';

NOTE : Alternatively we can copy this archive log to standby ASM location and then do a register.

On standby,

$rman target /

RMAN>copy archivelog '/u01/app/oracle/ARC00001113_0732997804.001' to '+DGROUP2/STDBY/datafile/ARC00001113_0732997804.001';


Now register,

SQL>alter database register logfile '+DGROUP2/STDBY/datafile/ARC00001113_0732997804.001';