How can I change my RAC public IP?

How can I change my RAC public IP?

How to Change the Public IP and SCAN IP Adresses in Oracle RAC

  1. Step-1: Stop Database and Nodeapps on both nodes as follows.
  2. Step-2: Check the existing Interfaces then delete the Public Interface as follows.
  3. Step-3: Once you delete the old Interface successfuly, now set the new Interface and its subnet as follows.

How do I find my Oracle RAC scan IP?

Checking Oracle RAC Network and IPs information

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

How do I change my private interconnect in RAC?

We can change it at any stage, it require full outage.

  1. Step 1: Determine private IP address.
  2. Step 2: Determine Ethernet card name.
  3. Step 3: Add new interface Subnet ID specification:
  4. Step 4 : Verify the changes:
  5. Step 5: Stop cluster on all node:
  6. Step 6: Modify netwrok address on network adapter of each box:

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.

How do I change my public and VIP address in RAC cluster?

We will change it node by node.

  1. Step 1: Check which service is running on current which VIP , we want to change.
  2. Step 2: Stop these services.
  3. Step 3: Find VIP address:
  4. Step 4: Stop VIP of current node.
  5. Step 5: Verify VIP is down:
  6. Step 6: Modify VIP.

What is scan IP and VIP in Oracle RAC?

SCANs uses IP’s not assigned to any interface. Clusterware will be in charge of it. It will direct the requests to the appropriate servers in the cluster. VIPs are the IPs which also CRS maintains for each node.

What is the difference between VIP and scan IP in Oracle RAC?

SCAN virtual IP addresses (VIPs) function like node VIPs. However, unlike node VIPs, SCAN VIPs can run on any node in the cluster. Clients (users or applications) that connect using a SCAN instead of a node VIP name or address do not have to update the list of node names or addresses in their local tnsnames.

How do I change my scan listener?

Steps to Modify Scan listener port number

  1. Step 1: Checking scan listener configurations (run as grid user). [oracle@node1 ]$ srvctl status listener.
  2. Step 2: Modifying port number using srvctl as grid user.
  3. Step 3: Reload Both Listeners:
  4. Step 5: Modify TNSNAMES. ORA files used for connectivity to reflect the new port.

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.

How do I find Interconnect details for RAC?

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 Cache Fusion in Oracle RAC?

Cache fusion writes occur when a block previously changed by another instance needs to be written to disk in response to a checkpoint or cache aging. When this occurs, Oracle sends a message to notify the other instance that a fusion write will be performed to move the data block to disk.

How do you failover VIP in RAC?

B. Solution to Use Failover VIP

  1. Create a listener in ORACLE_HOME by oracle.
  2. Add Listener to Database.
  3. Startup the New Listener.
  4. Show Listener Status.
  5. Test Connection.