To Cache or Not to Cache? RAID 6 Or Raid 10? With LSI MegaRAID CacheCade SSD Cache Drives

I was curious, is it worth while having SSD Cache drives in a SSD Array? I also wanted to see the performance differences between RAID 6 vs. RAID 10. Well I built my Poor Man's fiber channel san, and have been using it pretty successfully, but I was wondering just how much it would be worth adding a SSD Cache to it, or If RAID 6 would be better for me than RAID 10. There are no guarantees with this and results may change, but here are my results. Also it is good to note that the CACHE drives are SATA SSD not SAS SSD.

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