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Veritas NetBackup™ Flex Scale Administrator's Guide

Last Published: 2025-02-12

Product(s): Appliances (3.2)

Platform: NetBackup Flex Scale OS

Replacement procedure for chassis

This topic describes the process for replacing a chassis in a NetBackup Flex Scale node.

Identifying a chassis failure (performed by the CHS team)

The node where the chassis malfunctions is shown as Unhealthy and the status is shown Offline. In the NetBackup Flex Scale infrastructure management UI, navigate to Monitor > Infrastructure > Nodes to view the health of the nodes.

Shutting down the node (performed by Veritas TSE)

You need to shut down the node on which the chassis is malfunctioning. For a cluster with fewer than six nodes, only a single node can be down, stopped, or shut down at any given point in time. For a larger cluster of up to 16 nodes, a maximum of two nodes can be down, stopped, or shut down at any given point in time. When you shut down a node, the cluster services running on the node are stopped and the NetBackup jobs running on the node fail over to other cluster nodes. After the hardware maintenance is complete, you need to turn on the node. When you start a node, the cluster services are started on the node, the node joins the cluster and can start running backup jobs. If you shut down the node where the NetBackup Flex Scale infrastructure management UI is running, it fails over to another node. It can take a few minutes for the UI to be up on another node

Note:

: If the loss of nodes exceeds the supported fault tolerance, either due to node failures or because the nodes are stopped or shut down, the cluster goes in an inconsistent state.

To shut down the node:

Shut down the node where the chassis failed. Navigate to Monitor > Infrastructure > Nodes and click Shutdown node.
Confirm that the node is shut down successfully. In the UI, you can view the notification at the top of the page.
Contact the hardware vendor to replace the hardware component.

Collecting HPE Active Health System (AHS) logs (performed by Veritas Support)

Before you contact the hardware vendor for replacing the failed component, collect AHS logs. To collect the AHS logs, in the NetBackup Flex Scale infrastructure management UI, navigate to Settings > Diagnostics > Basic > Appliance.

Replacing the chassis (performed by the HPE vendor)

The HPE representative replaces the chassis.

Completing the post-replacement tasks (performed by Veritas TSE)

After the hardware vendor notifies you that the hardware component is replaced, verify that the issue is resolved.

Perform the node replacement operation. When you select the node that you want to use to replace the unhealthy node, ensure that you select the node on which the chassis is replaced.

To replace the node:

Check the node status in the NetBackup Flex Scale infrastructure management UI. The node is shown unhealthy and the node status is offline.
Prepare the node for replacement:
- Deploy ISO on the failed node where the OS disks were replaced.
- Perform factory reset on that node from the node CLI by using the system factory-reset command.
From the NetBackup Flex Scale infrastructure management UI perform the replace node operation.
- Scan for nodes. Click Scan for nodes to discover the nodes.
- Select a node from the displayed list and replace the node. For the unhealthy node, click the Actions menu (vertical ellipsis) from the right side of the row in the UI, and click Replace node.
- In the Replace node dialog box, select the node that you want to use to replace the unhealthy node and click Replace node.
After the replace node operation completes successfully check the node status in the NetBackup Flex Scale infrastructure management UI. Navigate to Monitor > Infrastructure > Nodes. The node is online and shown healthy.
Click Dashboard and verify that all the NetBackup services are running.