Setting-up near real-time (NRT) update of virtual machine states

To set up near real-time updates of the virtual machine state, configure the VMware vCenter Server SNMP settings with the VOM server address as the receiver URL. The Management Server receives the updates when you add the VMware vCenter Server to the Management Server.

When a virtual machine's state (powered ON, powered OFF, or suspended) changes, the managing VMware vCenter Server that is discovered in the Management Server, generates the corresponding SNMP trap. It then sends the trap to the Management Server. The SNMP trap contains the information of the virtual machine state, and it is used to update the Management Server database.

Note:

SNMP version 1 (SNMPv1) and version 2 (SNMPv2) are supported.

The Veritas Operations Manager component of near real-time update is xtrapd. It runs as a daemon on Linux and as a service on Windows. xtrapd detects the SNMP trap that is sent from the VMware vCenter Server, updates the virtual machine records in the Veritas Operations Manager database, and subsequently the Management Server console is updated with the latest state of the virtual machine.

To set up the near real-time update of VMware virtual machines, complete the following steps:

Table: Setting up near real-time (NRT) update of virtual machine states

Steps

Action

Description

Using VMware vCenter Server console:

Step 1

Provide Management Server details in the VMware vCenter Server console.

Provide information to configure Management Server as the SNMP trap receiver. Also configure the alarm to send the SNMP traps when the state of the virtual machine changes.

See Configuring the VMware vCenter Server to generate SNMP traps.

Using the Management Server console:

Step 2

Add VMware vCenter Server to Management Server.

When you add a VMware vCenter Server to Management Server, the xtrapd daemon on the Management Server starts accepting SNMP traps from the specified VMware vCenter Server.

See Configuring the virtualization discovery.

Note:

If you have not configured the VMware vCenter Server before adding it to the Veritas Operations Manager domain, a warning message is displayed. It does not affect the vCenter Server discovery. However, near real-time virtual machine state discovery is not functional. If you want to enable near real-time update of virtual machine states, you need to first configure the VMware vCenter Server, and then refresh the VMware vCenter Server configuration in the Management Server console.

By default, near real-time update of virtual machines is enabled. To disable it, you need to remove Management Server as the SNMP receiver in the VMware vCenter Server.

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