Storage configuration optimizations
We will assess storage configuration optimizations with each of the physical hardware components that make up the VSAN and their interdependency.
A flash device
Based on the discussion so far, we know that the first point of contact on disk for any I/O is the flash device. Therefore, the Performance Class SSD, as defined by the respective vendors and by VMware Compatibility Guide (VCG), is an important factor in the design consideration. From a design point of view, the VSAN sizing tool (http://virtualsansizing.vmware.com/) helps to choose the right combination of quality and quantity to deliver estimated IOPS from the cluster.
Alternatively, you can specifically check the IOPS capability through VCG. The following ...
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