November 26, 20241 yr Hello. I current have 12x 4TB drives in my array. 2 are Parity drives and 10 are pool drives. 2 of my pool drives died after I accidentally unplugged my server from my UPS. I just purchased 2 18TB drives to use as parity drives so I can start replacing some of my 4TB drives with larger sized drives in the future because I'm running out of 3.5" bays. The problem is that since I now have 2 failed drives I don't know if it's safe to switch my parity drives out with the 18TBs without losing data. Do I need to buy 2 more 4TB drives to replace the failed drives to change my parity drives or can I continue to emulate the 2 4TB drives while rebuilding parity? What would be the process for this? Edit for a visual explanation: Currently: Parity: [o] - 4TB Parity 1 [o] - 4TB Parity 2 Pool: [o] - 4TB Disk 1 [x] - 4TB Disk 2 [o] - 4TB Disk 3 [o] - 4TB Disk 4 [o] - 4TB Disk 5 [o] - 4TB Disk 6 [o] - 4TB Disk 7 [x] - 4TB Disk 8 [o] - 4TB Disk 9 [o] - 4TB Disk 10 Ideal: Parity: [o] - [new] 18TB Parity 1 [o] - [new] 18TB Parity 2 Pool: [o] - 4TB Disk 1 [o] - [swapped] 4TB Parity 1 [o] - 4TB Disk 3 [o] - 4TB Disk 4 [o] - 4TB Disk 5 [o] - 4TB Disk 6 [o] - 4TB Disk 7 [o] - [swapped] 4TB Parity 2 [o] - 4TB Disk 9 [o] - 4TB Disk 10 Thanks! Edited November 26, 20241 yr by Jonasn Clarity
November 27, 20241 yr Community Expert Also, are you sure the drives have died rather than simply been disabled due to a write failure?
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