$ curl -s localhost:9200/_cat/shards/vs_es_int8_hnsw?h=index,shard,prirep,state,unassigned.reason vs_es_int8_hnsw 0 p UNASSIGNED INDEX_CREATED vs_es_int8_hnsw 0 r UNASSIGNED INDEX_CREATED $ curl -s localhost:9200/_cluster/allocation/explain (index, shard and decider lines) index: vs_es_int8_hnsw | can_allocate: no | unassigned reason: INDEX_CREATED disk_threshold -> NO | the node is above the high watermark cluster setting [cluster.routing.allocation.disk.watermark.high=90%], having less than the minimum required [25.1gb] free space, actual free: [25.1gb], actual used: [90%] $ grep DiskThresholdMonitor eslogs/elasticsearch.log | tail -1 [WARN ][o.e.c.r.a.DiskThresholdMonitor] [vm] high disk watermark [90%] exceeded on [UYHyLZrWSZSD9gDv_TWuGw][vm][/tmp/vs-run/esdata] free: 25.1gb[9.9%], shards will be relocated away from this node; currently relocating away shards totalling [0] bytes; the node is expected to continue to exceed the high disk watermark when these