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What is the best practice HBA to FA mapping to ensure the required performance of the data warehouse?

A new data warehouse will be hosted on an existing 4-engine VMAX array. The database server
has 4 HBAs connected at 8Gb/s. Due to limited SAN switch ports only port 0 on each VMAX FA is
connected – also at 8Gb/s.
The workload is expected to require at least 1700MB/s of reads @ 128KB I/O size. It must
maintain performance in case of any major component failure in the host, switch or array. Assume
that the existing workload on the VMAX does not exceed 350MB/s per port. Also assume that the
ports can sustain up to 500MB/s without exceeding 70% utilization.
What is the best practice HBA to FA mapping to ensure the required performance of the data
warehouse?