Do you wish it supported Erasure Coding for lower disk usage, or is your workload such that the extra spindles from replication are useful?
But with MinIO and erasure coding a single PUT results in more IOPS and we saw lower performance.
Also, expanding MinIO must be done in increments of your original buildout which is annoying. So if you start with 4 servers and 500TB, they recommend you expand by adding another 4 servers with 500TB at least.