Low disk usage on data nodes

Data nodes are using only a small share of provisioned disk over time. Ongoing storage charges apply to unused headroom on every affected node.

Note

For a complete list of insights, refer to AutoOps insights.

Field Value
Component Elasticsearch
Severity Low
Scope Node
Domains disk-storage, resource-utilization

The following is an example of what you might see when this insight is triggered. Real insights use live data and links from your deployment or cluster.

Disk utilization is low on 2 data nodes: es-data-01 and es-data-02.

These nodes are using only 85% of available disk space.

Note

AutoOps shows different recommendations depending on how their conditions match your deployment or cluster.

When provisioned disk stays underused for a sustained period, you pay for storage capacity the cluster is not using.

When data nodes collectively use far less disk than provisioned, storage cost continues for unused headroom. Rightsizing needs a check of retention, replicas, and shard sizing first.

If underutilization continues, storage cost remains higher than the current data footprint requires. Keep enough headroom for expected growth before you rightsize.