Hello Thomas   It will just be a performance hit. Read performance will not benefit from the cachecade.   Online purchasing is very limited. I tried to set up the configuration you are wanting and encountered the same issues. Cachecade does not require more than one drive to function, so you should be able to order it with a single drive.  I would suggest contacting a sales rep to place your order. Thanks
Simple question: What will happen to my array when a single SSD drive fails, which was used as a CacheCade virtual disk? Will everything just keep running with reduced read-performance since everything will just go to the main array? Or will the entire array fail causing the server to stop? I sure hope not by I can't really find any info on what happens when CacheCade drives fail. I'm looking at using this in a new R720xd with the H710p, 12 3.5" SATA drives in R10 and a single SSD in the FlexBay. Next question: Can I even order just a single drive in the Flex bay? The configurator seems to insist on two identical drives in the flex bay...
CacheCade with single SSD drive in R720xd flex bay?