in napp-it under pools you'll see a column labeled "sync" if you click on the link that most likely says "standard" right now you'll be able to select disabled.
I also see you are running a 1000MB benchmark. Being that FC is considered "block level storage" by ESXi, writing a 1000MB file might not be hitting the RAM cache at all. You can confirm this by running a 100MB benchmark. I also would remove the L2ARC (read cache) for testing purposes. Enabling round robin is esxi you are seeing 2 paths right?
Something else to look into is setting up ESXi to work with a queue depth of 64 instead of 32.
I also see you are running a 1000MB benchmark. Being that FC is considered "block level storage" by ESXi, writing a 1000MB file might not be hitting the RAM cache at all. You can confirm this by running a 100MB benchmark. I also would remove the L2ARC (read cache) for testing purposes. Enabling round robin is esxi you are seeing 2 paths right?
Something else to look into is setting up ESXi to work with a queue depth of 64 instead of 32.
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