Veritas NetBackup™ Appliance High Availability Reference Guide
- Overview of NetBackup Appliance high availability
- Deployment of a high availability configuration
- Configuration and performance guidelines
- Disaster recovery
- Appendix A. HA Deployment Checklist
About upgrades for NetBackup Appliance HA setups
The following describes the upgrade requirements for nodes in a high availability (HA) setup:
NetBackup Appliance Shell Menu
Use this interface to upgrade the nodes.
The Appliance Management Console does not support upgrades for HA nodes.
One or two nodes in the HA setup
HA nodes must be upgraded from within the HA setup. If you remove a node from the HA setup, you can still upgrade the node that remains.
One node at a time
Only one node can be upgraded at a time so that the workload can continue on the other node.
One software version
Both nodes must use the same appliance software version. Once you have upgraded one node, you must upgrade the other node immediately.
Node upgrade order
Either node can be upgraded first. However, the node that runs the MSDP services cannot be upgraded while those services are in progress.
The first node that is configured and then used to create the HA setup runs the MSDP services by default. To upgrade this node, you must first perform a switchover to transfer the MSDP services and workload to the partner node.
After the upgrade on the first node has completed, immediately perform the following tasks on that node to prepare for the other/partner node upgrade:
On the upgraded node, run the Manage > High Availability > Switchover command to switch the MSDP services from the partner node over to the upgraded node.
On the upgraded node, run the Support > Test Software command to verify the status of various appliance software components. If the test passes, log in to the partner node and upgrade it.
To upgrade the nodes in an HA setup, MSDP configuration is required on both nodes. Upgrades on appliance HA nodes are not supported if MSDP is not configured.
Downloading packages from the NetBackup Appliance Shell Menu
You only need to download rpm packages to one node. After you run the Manage > Software > List Downloaded command on the HA node with the downloaded package, run the command on the other node to make the package available on that node.
Approve host name mappings
Before you upgrade from software versions 3.1.1 and earlier, you must first approve the host name mappings for HA appliances in the NetBackup Administration Console on the associated master server. Otherwise, the preflight check does not allow the upgrade to start.
To approve the host name mappings, do the following:
On the associated master server, log in to the NetBackup Administration Console.
In the left pane, clickto expand its properties, then click .
In the lower-left of the right pane, click
At the top of the right pane, click on any host mapping that is pending approval. When the Approve Mappings dialog box appears that prompts for approval, click . Repeat this task for each host mapping that is pending approval.
Perform a switchover for appliances in an HA setup
Appliances (nodes) in an HA setup are updated one at a time. Both nodes must use the same appliance software version. Once you have upgraded one node, you must upgrade the other node immediately.
Either node can be upgraded first. However, upgrades cannot be performed on the node where MSDP services and jobs are in progress. Before you begin an upgrade on the node that is running MSDP, you must first perform a switchover to transfer the MSDP workload to the partner node. Use the following command to perform a switchover:
Main_Menu > Manage > HighAvailability > Switchover hostname
Where hostname is the physical host name or IP address of the partner node.
When the upgrade on this node has completed, perform another switchover to transfer the MSDP workload from the partner node to the upgraded node. Immediately upgrade the partner node.