How to Convert a Single-Instance ASM to Cluster ASM [ID 452758.1]
How to Convert a Single-Instance ASM to Cluster ASM [ID 452758.1] | |||||
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修改時間 31-JUL-2011 型別 HOWTO 狀態 PUBLISHED |
Applies to:
Oracle Server - Enterprise Edition - Version: 10.2.0.1 to 11.1.0.6 - Release: 10.2 to 11.1Information in this document applies to any platform.
Goal
This document describes the procedures for converting from Oracle ASM 10g single-instance to Oracle Real Application Clusters (RAC).Solution
To convert a single-instance node using ASM to a RAC node using ASM:
1) Shut down the database instance, the ASM instance, and the listener.
Remove the CSS auto-start line from the /etc/inittab file to enable you
to shut down and uninstall CSS.
2) Follow the instructions in Chapter 2
and Chapter 3 (Oracle® Database Oracle Clusterware and Oracle Real Application
Clusters Installation Guide
3) If any cluster member node has had previous versions of Oracle
clusterware (Cluster Ready Services or Oracle Clusterware) installed, then
ensure that you remove the file ocr.loc on any node that has been labeled
previously as a cluster node. The file ocr.loc is in /etc/oracle.
4) Log
in as the oracle user, and run DBCA in silent mode to deconfigure ASM. To run
DBCA in silent mode, navigate to the directory $ORACLE_HOME/bin and use the
following command syntax on the local node:
dbca -silent -deleteASM
You can de-install the single-instance ASM without losing data.
5) Install Oracle Clusterware on all nodes you intend to have as cluster
members, following the directions in Chapter 4 (Oracle® Database Oracle
Clusterware and Oracle Real Application Clusters Installation Guide
6) Install Cluster ASM using DBCA. At the Node Selection page, select all
the cluster member nodes for which you intend to use ASM to manage storage. When
the ASM Disk Groups page prompts you to select disk groups, select the existing
disk groups you used with the single-instance ASM instance that you deleted in
step 4.
7) Start up the single-instance Oracle Database.
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