> From: Gil Vidals [mailto:gvid...@gmail.com]
> 
> connected to my ESXi hosts using 1 gigabit switches and network cards: The
> speed is very good as can be seen by IOZONE tests:
> 
> KB  reclen   write rewrite    read    reread
> 512000      32    71789   76155    94382   101022
> 512000     1024   75104   69860    64282    58181
> 1024000    1024   66226   60451    65974    61884
> 
> These speeds were achieved by:
> 
> 1) Turning OFF ZIL Cache (write cache)
> 2) Using SSD drives for L2ARC (read cache)
> 3) Use NFSv3 as NFSv4 isn't supported by ESXi version 4.0.

I have the following results using local disk.  ZIL enabled, no SSD, HBA
writeback enabled.
KB  reclen   write rewrite    read    reread 
524288      64  189783  200303  2827021  2847086

524288    1024  201472  201837  3094348  3100793

1048576    1024  201883  201154  3076932  3087206


So ... I think your results were good relative to a 1Gb interface, but I
think you're severely limited by the 1Gb as compared to local disk.

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