Veritas Access Installation Guide
- Licensing in Veritas Access
- System requirements
- System requirements
- Linux requirements
- Network and firewall requirements
- Preparing to install Veritas Access
- Deploying virtual machines in VMware ESXi for Veritas Access installation
- Installing and configuring a cluster
- Installing the operating system on each node of the cluster
- Installing Veritas Access on the target cluster nodes
- About managing the NICs, bonds, and VLAN devices
- About VLAN tagging
- Automating Veritas Access installation and configuration using response files
- Displaying and adding nodes to a cluster
- Upgrading the operating system and Veritas Access
- Performing a rolling upgrade
- Uninstalling Veritas Access
- Appendix A. Installation reference
- Appendix B. Configuring the secure shell for communications
- Appendix C. Manual deployment of Veritas Access
Deleting a node from the cluster
You can delete a node from the cluster. Use the node name that is displayed in the Cluster> show command.
If the deleted node was in the RUNNING state prior to deletion, after you reboot the node, that node is assigned to the original IP address that can be used to add the node back to the cluster. The original IP address of the node is the IP address that the node used before it was added into the cluster.
If your cluster has configured a FSS pool, you cannot use the installer to delete nodes that would result in a single node in the node group of the FSS pool.
Deleting a node from a two-node cluster that has writeback caching enabled changes the caching to read-only. Writeback caching is only supported for two nodes.
The IP address that was used by the node before it was deleted from the cluster is still accessible until you perform a restart operation.
After the node is deleted from the cluster, when you perform a reboot operation, the old IP configuration is restored. Therefore, make sure to remove the used IPs from Veritas Access for the deleted node or vice versa.
To delete a node from the cluster
- To show the current state of all nodes in the cluster, enter the following:
Cluster> show
- To delete a node from a cluster, enter the following:
Cluster> del nodename
where nodename is the node name that appeared in the listing from the Cluster> show command. You cannot specify a node by its IP address.
Note:
This command is not supported in a single-node cluster.
For example:
Cluster> del snas_01
- After a node is deleted from the cluster, the physical IP addresses that it used are marked as unused physical IP addresses. The IP addresses are available for use if you add new nodes. The virtual IP addresses used by a node which has been deleted are not removed. Deleting a node moves the virtual IP addresses on the deleted node to the remaining nodes in the cluster.
For example:
Network> ip addr show IP Netmask/Prefix Device Node Type Status -- -------------- ------ ---- ---- ------ 192.168.30.10 255.255.252.0 pubeth0 source_30a_01 Physical 192.168.30.11 255.255.252.0 pubeth1 source_30a_01 Physical 192.168.30.12 255.255.252.0 ( unused ) Physical 192.168.30.13 255.255.252.0 ( unused ) Physical 192.168.30.14 255.255.252.0 pubeth0 source_30a_01 Virtual ONLINE (Con IP) 192.168.30.15 255.255.252.0 pubeth0 source_30a_01 Virtual ONLINE 192.168.30.16 255.255.252.0 pubeth0 source_30a_01 Virtual ONLINE 192.168.30.17 255.255.252.0 pubeth1 source_30a_01 Virtual ONLINE 192.168.30.18 255.255.252.0 pubeth1 source_30a_01 Virtual ONLINE
If the physical or virtual IP addresses are not going to be used, they can be removed using the following command:
Network> ip addr del ipaddr
For example:
Network> ip addr del 192.168.30.18 ACCESS ip addr SUCCESS V-288-1031 ip addr del successful.
Note:
If the cluster has configured NIC bonding, you also need to delete the configuration of the deleted node on the switch.