<ul><li>Efficient disk space management is crucial for stability and performance of Elasticsearch and OpenSearch clusters.</li><li>There are three key settings related to disk allocation thresholds:</li><li>1. cluster.routing.allocation.disk.threshold_enabled - Enables or disables disk-based shard allocation.</li><li>2. cluster.routing.allocation.disk.watermark.low - Defines the minimum amount of free disk space before avoiding shard allocation.</li><li>3. cluster.routing.allocation.disk.watermark.high - Determines when to relocate shards away from a node with low disk space.</li></ul>

Configuring Disk Allocation Thresholds in Elasticsearch and OpenSearch

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