Shulou(Shulou.com)06/01 Report--

If you now have three nodes C1, c2, c3 in the RAC cluster:

If you want to uninstall the c3 node.

1. Delete the c3 instance on C1 or c2

Run dbca

Then select Oracle Real Application Clusters database

Select Instance Management

Select Delete an instance

Select the instance, enter the user name and password, and Next

Select c3: instance3,Next

Execution completed

2. Delete the ASM instance of R3 (if any)

On C1 or c2, under Oracle users:

Srvctl stop asm-n c3

Srvctl remove asm-n c3

3. Uninstall and delete listeners with netca

On C1 or c2, netca

Select Cluster configuration

Select c3 node

Select Listener configuration

Select Delete

Select LISTENER

4. Update oraInventory

On C1 or c2

In $ORACLE_HOME/oui/bin

Execute:. / runInstaller-updateNodeList ORACLE_HOME=$ORACLE_HOME "CLUSTER_NODES=c1,c2"

On c3

In $ORACLE_HOME/oui/bin

Execute:. / runInstaller-updateNodeList ORACLE_HOME=$ORACLE_HOME "CLUSTER_NODES=c1,c2"

. / runInstaller-updateNodeList ORACLE_HOME=$ORACLE_HOME "CLUSTER_NODES=c3"-local

5. Delete the oracle software in c3

In $ORACLE_HOME/bin

. / runInstaller-deinstall

Delete only database software (do not delete cluster software)

6. Delete the remaining resources

On C1 or c2

Under oracle users:

/ u01/crs_1/bin/srvctl stop nodeapps-n c3

Under root users:

/ u01/crs_1/bin/srvctl remove nodeapps-n c3

7. Delete the cluster of c3

On c3

Cd / u01/crs_1/install/

. / rootdelete.sh

8. Delete c3 on C1

Under root users

Cd / u01/crs_1/install

. / rootdeletenodesh c3 3

9. Delete the clusterware record information of c3 in C1

Cd / u01/crs_1/oui/bin

. / runInstaller-updateNodeList ORACLE_HOME=/u01/crs_1 "CLUSTER_NODES=c1,c2" CRS=TRUE

10. Update oraInventory on c3

Cd / u01/crs_1/oui/bin

. / runInstaller-updateNodeList ORACLE_HOME=/u01/crs_1 "CLUSTER_NODES=c3" CRS=TRUE-local

11. Delete the clusterware software on c3

Cd / u01/crs_1/oui/bin

. / runInstaller-deinstall

Note:

You can use crs_stat-t to check the status of resources halfway

You can stop a resource with srvctl stop xxx-n c3

You can remove a resource with srvctl remove xxx-n c3

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