The alert "Fsdb is running critically low on disk space" is triggered in Aria Operations

Products

• VMware Aria Operations (formerly vRealize Operations) 8.x

Issue/Introduction

• VMware Aria Operations (formerly vRealize Operations) reports critical disk space alerts related to the File System Database (FSDB).
  
  
• The following alert is triggered in the UI: "Fsdb is running critically low on disk space."


• In /storage/log/vcops/log/analytics-*.log on Aria operations Appliance ,the following snippets is observed: 
  WARN [Threshold checker worker thread] com.integrien.analytics.dataobject.ProblemAlertManager.processAlerts - Created system alert:com.integrien.alive.common.dataobject.events.AlertBase@... alertDefinitionId=AlertDefinition-vCenter Operations Adapter-FsdbInsufficientDiskSpaceAlert
  
  
•  Verification of the disk utilization of the File System Database (FSDB) partition running following command from the appliance shell confirms the same.
  df -h /storage/db/

Environment

VMware Aria Operations 8.x

Cause

The partition housing the FSDB (typically /storage/db) has reached its utilization threshold. This is often caused by high data retention settings, insufficient disk provisioning, or large amounts of historical metrics exceeding the allocated virtual disk size.

Resolution

To resolve this issue, additional storage capacity must be provisioned to the appliance. In accordance with VMware Aria Operations best practices, this is achieved by adding a new virtual disk to the node rather than expanding existing disks.

Please refer to following article for detailed information : How to add disks to a node in Aria Operations cluster 

Additional Information

Troubleshooting Storage Issues in Aria Operations

Japanese KB: アラート "FSDB の空きディスク容量がありません" がAria Operationsでトリガされる