How to achieve sustained disk performance of 1.25 GB write for 5 mins

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This is not directly a PostgreSQL performance question but I'm hoping some of the chaps that build high IO PostgreSQL servers on here can help.

We build file transfer acceleration s/w (and use PostgreSQL as our database) but we need to build a test server that can handle a sustained write throughput of 1,25 GB for 5 mins.

Why this number, because we want to push a 10 Gbps network link for 5-8 mins, 10Gbps = 1.25 GB write, and would like to drive it for 5-8 mins which would be 400-500 GB.

Note this is just a "test" server therefore it does not need fault tolerance.

Thanks in advance,
Eric

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