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

原创 Linux操作系统 作者:wuweilong 时间:2012-04-18 16:51:58 0 删除 编辑
How to Manually Determining and Resolving Archive Gaps in ASM (Copy archivelog in ASM using RMAN) [ID 1271114.1]

修改时间 04-JAN-2012 类型 HOWTO 状态 MODERATED

In this Document


This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review.

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,


SQL>SELECT THREAD#, LOW_SEQUENCE#, HIGH_SEQUENCE# FROM V$ARCHIVE_GAP;

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';

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