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I hopped on the wagon to test vSphere with the new Paravirtual SCSI driver.
I used I/O meter, with 10GB test files, one per drive. 32K 100% read.
I did a comparison of 1 LSI VDMK drive, vs 1 paravirtual VMDK drive, vs 1 RDM, vs 1 paravirtual RMD.
And then I did a comparison of 3 LSI VDMK drive, vs 3 paravirtual VMDK drive, vs 3 RDM, vs 3 paravirtual RMD.
