How do we find the disk usage for each ES Node in a cluster

How do we find the disk usage for each ES Node in a cluster

Question:
Is there a command that provides the disk usage by ES for each node in a cluster? Also, how much is actual data size because we may be replicating it for High Availability?

Answer:
​​Run below command from any of the analyzer where elasticsearch is running.

curl -XGET localhost:9200/_cat/allocation?v
shards disk.indices disk.used disk.avail disk.total disk.percent host ip node

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