1st of all VmWare 6.7 not yet tested with MSA1050 so this is not a supported environment.
Next thing I have checked HPE MSA1050 Compatibility with VmWare 6.5 and I don't see P431 supported but H241 supported. Please find the link to get details,
https://h20272.www2.hpe.com/SPOCK/Content/ExportPDFView.aspx?Id=95096&typeId=2
Note: In order to access HPE SPOCK you need HPE Passport login
Hope this helps!
Regards
Subhajit
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