How do I change the public IP subnet after installing RAC?

How do I change the public IP subnet after installing RAC?

The basic steps

1. Shut down everything except the CRS stack.
2. Change the public interface.
3. Modify the VIP address.
4. Shut down CRS.
5. Modify IP address on OS level and reconfigure /etc/hosts, listener,..
6. Restart.

How can I change my RAC private IP?

1. Stop CRS as root.
2. Backup /u01/app/11.2.0.1/grid/gpnp//profiles/peer/profile.xml.
3. Change the IP in below OS files as root.
4. Check current IP and its interface.
5. To Change the IP Address for the current Session as root:
6. SSH/Ping from Both Nodes.
7. Start CRS as root.

How do I change the scan IP in Oracle RAC 12c?

If you want to change SCAN IP of Oracle RAC, perform the following steps also. Step-1: Stop Scan_listener and SCAN, then check its status as follows. Step-2: Check the existing IP adresses of SCAN NAME as follows. Step-3: Change the SCAN IP of SCAN NAME from DNS Server.

How do I find my private IP in Oracle RAC?

Checking Oracle RAC Network and IPs information

1. Display the current scan configuration. $ srvctl config scan. SCAN name: exadata-pscan1, Network: 1. Subnet IPv4: 192.168.16.0 /255 .255.255.0 /bondeth0 , static.
2. Obtain information about SCAN DNS records. $ nslookup exadata-pscan1. Server: 192.168.16.20.
3. Display Cluster Name.

What is public IP in Oracle RAC?

Answer: In Oracle RAC clusters, we see three types of IP addresses: Public IP: The public IP address is for the server. This is the same as any server IP address, a unique address with exists in /etc/hosts. The VIP must be on the same subnet as the public IP address. The VIP is used for RAC failover (TAF).

How do I check my RAC interconnect?

Check the Oracle cluster interconnect information

1. Check Oracle RAC interconnect information. SELECT * FROM GV$CLUSTER_INTERCONNECTS;
2. Check Oracle RAC interconnect information. Both private and public information is stored in OCR.
3. Verify the interconnect setting from this view. SELECT * FROM V$CONFIGURED_INTERCONNECTS;

What is Private IP in Oracle RAC?

Private IP addresses are required by Oracle RAC to provide communication between the cluster nodes. Depending on your private network configuration, you may need one or more IP addresses. You can configure the private IP addresses for high availability using the PrivNIC or MultiPrivNIC agents.

What is scan IP in Oracle RAC?

Single Client Access Name (SCAN) is a feature used in Oracle Real Application Clusters. environments that provides a single name for clients to access any Oracle Database running. in a cluster. You can think of SCAN as a cluster alias for databases in the cluster. The benefit.

What is private interconnect in Oracle RAC?

Real Application Cluster Architecture. Cluster Private Interconnect. The cluster interconnect is a high bandwidth, low latency communication facility that connects each node to other nodes in the cluster and routes messages among the nodes. It is a key component in building the RAC system.

What is public IP and Private IP in RAC?

Answer: In Oracle RAC clusters, we see three types of IP addresses: Public IP: The public IP address is for the server. Private IP: Oracle RCA requires “private IP” addresses to manage the CRS, the clusterware heartbeat process and the cache fusion layer. Virtual IP: Oracle uses a Virtual IP (VIP) for database access.

How to change the public IP address in an Oracle RAC?

Modify the IP Address on OS Level Modify the public IP address (eth0). In Centos with application / system setting / network Perform the change on all nodes. Modify /etc/hosts and listener.ora files if required. Restart Reboot all nodes and verify the status.

Do you need to stop RAC in Node 1?

All RAC components need to be stopped except CRS itself, that must be running to make the changes. All commands are run from node 1. At this point all RAC processes are down, only CRS, that is Oracle Clusterware is up.

How to change the network interface in Oracle Clusterware?

You can change a network interface and its associated subnet address using the following procedure. You must perform this change on all nodes in the cluster. This procedure changes the network interface and IP address on each node in the cluster used previously by Oracle Clusterware and Oracle Database.

When to stop RAC reconfiguration in Oracle Clusterware?

Once RAC is reconfigured. The Server IP is changed and RAC is restarted All RAC components need to be stopped except CRS itself, that must be running to make the changes. All commands are run from node 1. At this point all RAC processes are down, only CRS, that is Oracle Clusterware is up.