April 22, 20251 yr As the title says, I added 2 new 8TB disks to my array, and made one a parity drive. Upon adding the second one to the storage pool, I cannot start the array due to the largest disk not being in parity. They are both the same model of 8TB disk. This post seems to have a similar issue, but I tried using the solution provided and it did not work, and I don't know what to do from there. I looked at the sector info for both disks and it looks like the parity drive has less sectors than the one I'm trying to add, but I don't know how to fix that. Any help would be greatly appreciated.
April 22, 20251 yr Community Expert same model does not always guarantee same size. even if, it does not mean same freespace depending on the partion layout / size You see in your example that sde1 starts at sector 2048 whereas sdg1 starts as (the usual) sector 64. So there is a difference of over 1900 sectors in net freespace. The question is "where do you have formatted sde ?" Many RAID HBAs reserve sectors for their own purposes, some filesystem types sometimes do the same. Either re-initialise the old drive "normally" or use the modified way for the new drive too. Then you will get symmetric results. Your 2nd problem is that you are still running the old 2TB drive as Parity #1! This cannot work! ALL parity drives must be "the largest cow in town". So get rid of parity #1, rethink the init of parity #2 (and then make it #1 and only) and then it might work (SHOULD work) Edited April 22, 20251 yr by MAM59
April 22, 20251 yr Author 10 hours ago, JorgeB said: Please post the diagnostics. closet-dweller-diagnostics-20250422-1142.zip
April 23, 20251 yr Community Expert I missed in the screenshot that parity1 was 2TB, you cannot add a large device than any of the parity drives.
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