Best storage method for 1.5 billion rows?

I am trying to put a MySQL table rows into Aerospike.

I have 650GB SSD and 50 GB RAM.

There are 21 columns in MySQL table, all float type.

There are 1.5 Billion rows and everyday approximately ~100,000 rows are added.

What is the best storage method to store all the data in Aerospike in the provided SSD in terms of minimizing storage space?

Thanks a lot.

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