Hi @mRabramS , Erasure coding is a whole different topic, and there are pros and cons to it, but it's not the solution to your 1-node question. Erasure Coding increases the efficiency by which you use your disk space. So instead of 1TB of data occupying 3TB of disk space, it now can occupy ~1.5TB and still maintains great fault-tolerance. However, it doesn't reduce the number of data nodes needed. On the contrary, it typically requires more nodes (although it's configurable). For example, using the typical RS (6,3) policy, you would require at least 9 data nodes.
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