Merging / Moving two different data paths on the same node

When configuring a node, you can put multiple data paths in the configuration to spread the data across multiple drives, etc.

If we were to upgrade our storage to a faster NVMe drive, how can we merge the two different data paths into one new faster data path / location? Are there any tools out there to help manage ES data so that one can migrate data between paths or to a new path -- or to take multiple data paths and consolidate it onto just one data path?


There are no tools, no. The only way I could think of that'd be guaranteed to work would be to spin up a new node that uses that mount, and then move all the shards from the original node over to it, then offline the old node.

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