How to add additional disk space to a Aria Operations for Networks Platform Node

Products

• VMware Aria Operations for Networks

Issue/Introduction

This article explains how to add additional disk space to a Aria Operations for Networks Platform node.

Symptoms:

• Aria Operations for Networks may stop working when the disk is full.
• When the /var partition is more than 89% utilized, samza containers services will stop to prevent the disk from going out of space.
• When disk utilization is at 82% on vrni-proxy-release(Collector), adding more disk space can help in preventing any service interruption.

Environment

Aria Operations for Networks 6.10
Aria Operations for Networks 6.11

VMware vRealize Network Insight 6.x
VMware vRealize Network Insight 5.x
VMware vRealize Network Insight 4.x
VMware vRealize Network Insight 3.x

Cause

Additional disk space may be needed when the environment is extensive in size.

Resolution

To add additional disk space to the Aria Operations for Networks nodes, perform the actions below.
Note: Review the Impact / Risks section before proceeding.

 

1. Log into vCenter via the web-client with sufficient privileges.
2. Right-Click the Platform VM and click Edit Settings.
3. Add a disk with size of 500GB.
4. Wait for 10-15 minutes for vRealize Network Insight to detect the disk and add it to the /var partition.

A cron job runs every 5 minutes and checks for any new disks added to the VM, then automatically expands the required partition.

Additional Information

In case troubleshooting is required, the cron job script location is /home/ubuntu/build-target/common-utils/cron.5m/run-expandpart.sh.
The related log file can be found at /home/ubuntu/logs/disk_util.log.

Impact/Risks:
DO NOT complete the resolution steps while the nodes are in a powered off state.
DO NOT expand the existing disks presented to the VM, instead add a new disk.
DO NOT reboot any nodes until after vRealize Network Insight has detected the new disk and added it to the /var partition.
DO NOT remove any disk added under any circumstance.