Safe removal of collector VM/appliance: VCF Operations for Networks

Products

• VCF Operations for Networks

Issue/Introduction

This KB provides the steps to safely remove collector VM/Appliance from VCF Operations for Networks deployment.

 

NOTE:   If the root password is lost (changed from the Broadcom-provided confidential password), a full redeployment is required, as Collector removal from the GUI/vCenter is the first phase of environment decommissioning.

 

NOTE:  VCF Operations for Networks was formerly named Aria Operations for Networks (AON), and prior to that was named vRealize Network Insight (vRNI).

Environment

VCF Operations for Networks 6.13.0
VCF Operations for Networks 6.14.x

Resolution

• To safely remove VCF Operations for Networks collector VM/appliance, follow these steps:

  1. Identify the VCF Operations for Network collector(s) to be removed, by logging into the VCF Operations for Networks GUI, and selecting Settings > Infrastructure and Support 
     
     
  2. Ensure that no data source is connected to the collector node(s).
     
     
     • Remove or migrate any connected data sources to another collector. Refer to Tech Docs - Migrate Data Sources to a Different Collector
       
       
  3. If syslog is configured for the VCF Operations for Networks collector(s), it should be unconfigured or deleted. See steps below:
     
     a. Navigate to Settings page, and under Logs, click Syslog Configuration.
     
     b. The Syslog Configuration page has the configured syslog servers and their mappings to the virtual appliances listed.
     
     c. Delete the existing syslog mapping.
     
     d. After the syslog mapping(s) is/are deleted, expected result is observation that Syslog is not configured.
     
     
     
     
  4. Now delete the collector(s) from VCF Operations for Networks GUI, See steps: as below:
     
     a. Navigate  to VCF Operations for Networks GUI by navigating to Settings > Infrastructure and Support 
     
     b. vCenter > Power > Shutdown Guest O/S to power off the target collector nodes.
     
     c. Delete the collector(s) from the VCF Operations for Networks GUI
        
     Refer to below screenshot for reference showing  delete icon under Actions column:
     
      
     
     Settings > Infrastructure and Support 
     
     
  5. Now the deleted collector(s) should not be seen  under the collector table on the VCF Operations for Networks GUI.
     
     
  6. At this point you can safely delete the collector VM(s) using vCenter > Delete From Disk