The mraid0:0 could be a result of it being a dual port sas driveGot mine installed into my workstation. I have a spare Dell H330 that I used for the controller. I used some Amphenol "12Gb" cables and they do indeed link at 12Gb. Interestingly, these seem to be two 800GB drives in RAID0? It shows as mraid0:0.
These are the cables I used.
New Amphenol 12GB MiniSAS SFF8643 4xSAS SFF8482 Cable RHS36-4819 US-SameDayShip | eBay
Here is a quick CDM run on the fresh drive. Looks like I'm hitting the limits of a single SAS3 channel.
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Here is the temperature reported in Storage Executive. This is a few minutes after the CDM run. Right after it was at 44*C.
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