November 30, 201015 yr I currently have 4 1.5tb 7200rpm drives in my array. I have a new 2tb 5400rpm drive on the way. My plan was to make the new 2tb drive the parity drive and move the old 1.5tb parity drive to data. I know that the 5400rpm parity drive will slow down the 7200rpm data drives, figure down the road I would replace the 5400rpm drive with a 2tb 7200 rpm drive when they get cheaper. But then I got to thinking why go through all the trouble of changing parity drive just to have to change them again down the road. Am I just better off making the new 2tb drive a data drive and only using 1.5 of it, I gain the same space either way. Then when I do get a 2tb 7200rpm drive for the parity would the remaining .5tb just show up or would it have to be formatted or something again?
November 30, 201015 yr Author You can't use a drive larger than parity as a reduced capacity data drive. I guess that answers that question. For some reason I was thinking that you could.
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