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snapraid
A backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Maybe give it a go with Linux + https://www.snapraid.it/ Create a script for Snapshots and you a free to go. Works best with bigger storage pools with Snapraid as a RAID 6 structure (2 parity HDD). Is also great because you can use different HDD capacity and expand later. Just have a look on the website under "compare".
NOTE:
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