Here is my situation:
I have a cluster with 2 dedicated data nodes, each with 16TB of storage. After some time, I added 4 more dedicated data nodes, each of those with 16TB of storage as well. I keep 30 days of indexes open, and the rest of the indexes (about 5 months worth) are closed.
What I see is that the original 2 nodes only have about 2TB free now, whereas the new nodes have about 8TB free. It appears that all data that existed prior to the 4 new nodes remained on the 2 old nodes, and all new data has been spread evenly across all 6.
What I would like to do is rebalance all data nodes so as to have them contain roughly the same amount of stored data, and thus have roughly the same amount of disk free space.
What would be the best way to accomplish this task?
Thank you for your time.