afaik, this is not available, there's only stats aggregated at the physical HBA. As you know with today's implementation of NPIV, you still need to zone to both set of WWPN for proper access and the level of performance data doesn't go any granular. You might be able to use vscsiStats on a per VMDK level to monitor some basic stats -
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William Lam
VMware vExpert 2009
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Twitter: @lamw
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