Indices exist in Elasticsearch but cannot find data


In the course of trying to debug unassigned shards in an ES (5.0) restart, I was trying to go find the data on disk. WIth an RPM installation on a single node, I understand that the data should be stored in "/var/lib/elasticsearch/nodes/0/indices". However, the indices directory seems to not exist (or has been deleted) from the system. But there are still clearly indices in ES and I can query them, etc.

Is there an explanation for this? Are the data stored somewhere else? Can indices exist in ES without the underlying data being stored?

Sorry ignore this. I found the data with the Nodes API.

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