March 27, 20188 yr As the title mentions, I am not able to perform the "Parity Swap" on Unraid 6.x because I have maxed out my license (which allows only 6 drives max to be connected to the mobo). My Unraid setup consists of 6 drives; 1x1TB as parity, 4x1TB in the array pool, and a single 750GB drive not part of the array pool). One of the 1TB drives failed. I was hoping to do upgrade the parity to 2TB (since I already have one laying around) and replace the failed 1TB with the old 1TB parity drive. Reading the wiki, I learned that the "Parity Swap" procedure is perfect for my situation. However, after I plug in the 2TB drive to pre-clear and perform the procedure, Unraid says I cannot start the array, to do so I must upgrade my license first. My question here is, can one perform the "Parity Swap" without upgrading the license? I was thinking that maybe I can disable the 750GB drive, unplug it, and do the Parity Swap. Is that safe? Or must I upgrade the license first? Any advice given on the issue is greatly appreciated! Unraid newbie
March 27, 20188 yr Community Expert How are you using the 750GB? Is it cache? Is it Unassigned Device with dockers, etc? There is no need for a clear disk in this situation. People often recommend testing a disk before trusting it in the array, and preclear is one way to do that, but you could also plug it into another computer and run some other tests on it. You really should go to Tools - Diagnostics and post the complete diagnostics zip so we can be sure we understand your situation as well as we can.
March 28, 20188 yr Author Hi trul, Thank you for the reply. The 750GB is being used to store the dockers/VMs. Currently, it doesn't have anything I need to keep. As recommended I have attached my Unraid diagnostics. What I want to do is simple, I want to replace my parity drive with a new drive, and use the old parity as the replacement for the failed drive. Thanks! tower-diagnostics-20180327-2010.zip
March 28, 20188 yr Community Expert Have you studied the wiki on parity swap? Here is the link: https://lime-technology.com/wiki/The_parity_swap_procedure I suggest you read it all and ask if you have any questions. You can start at step 5 since the disk is already disabled. You can remove the disabled disk since it is not used during the procedure. So, you don't actually need any more drives than you have currently. Double check all connections and hang on to the original disk in case there are any problems. You can test the new disk on another computer first if you want. Since the drives you are talking about are fairly small none of this should take more than several hours.
March 28, 20188 yr Author My questions was specifically about removing the disk and trying to build the parity drive. Which I guess you've answered (that I can remove the disabled disk). Thanks! cmo Edited March 28, 20188 yr by cmo
March 28, 20188 yr 4 minutes ago, cmo said: My questions was specifically about removing the disk and trying to build the parity drive. Which I guess you've answered (that I can remove the disabled disk). Thanks! cmo BEFORE you proceed, please outline exactly what you plan to do, in the exact order you are going to do it. It's not clear that you are following the correct procedure for a parity swap, so before you lose the data on the disabled disk, please post exactly what you are about to do so we can confirm your steps will result in the desired outcome.
March 28, 20188 yr Author Welp! That's a bit late, or I was too hasty. What I did was exactly what is outlined here https://lime-technology.com/wiki/The_parity_swap_procedure.
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