August 14, 20241 yr Long story short, one of my disks is in a pre-pre-failure status and I have the ability to RMA the drive. My current drive configuration: Parity = Healthy Disk 1 = Unhealthy Disk 2 = Healthy I am willing to run without data protection for the duration of the RMA, as it's replaceable data. What is the best process to use to pull the current parity disk out, convert it to a "data disk" and copy the existing data off the failing "Disk 1" to this drive? As a follow-up -- when I get the RMA'd drive, is it as simple as stopping the array, selecting the replaced disk as "Parity" and letting the array rebuild? TIA.
August 14, 20241 yr Community Expert 7 hours ago, shapeshiftr said: What is the best process to use to pull the current parity disk out, convert it to a "data disk" Much easier to just remove the bad disk and parity will emulated it, though would recommend posting a SMART report to confirm it's really failing.
August 14, 20241 yr Community Expert Solution 12 hours ago, shapeshiftr said: What is the best process to use to pull the current parity disk out, convert it to a "data disk" and copy the existing data off the failing "Disk 1" to this drive? As was mentioned - leave the parity disk as it is because then it will emulate the missing disk1. Doing anything else is far more complicated and ,making an error would lead to data loss. 12 hours ago, shapeshiftr said: As a follow-up -- when I get the RMA'd drive, is it as simple as stopping the array, selecting the replaced disk as "Parity" and letting the array rebuild? Assuming you have left the parity disk in place, then just plug the replacement disk in as disk1. When you then start the array Unraid will rebuild the contents of the 'emulated' disk1 onto the replacement physical disk1 so it matches the emulated one. When that completes your array will be back in a protected state.
August 14, 20241 yr 18 hours ago, shapeshiftr said: I am willing to run without data protection for the duration of the RMA, as it's replaceable data. Remember it's not just the removed disk at risk, if another data drive fails while the drive is gone both drives data will be gone.
August 23, 20241 yr Author On 8/15/2024 at 1:47 AM, itimpi said: As was mentioned - leave the parity disk as it is because then it will emulate the missing disk1. Doing anything else is far more complicated and ,making an error would lead to data loss. Assuming you have left the parity disk in place, then just plug the replacement disk in as disk1. When you then start the array Unraid will rebuild the contents of the 'emulated' disk1 onto the replacement physical disk1 so it matches the emulated one. When that completes your array will be back in a protected state. Brilliant, thank you (and JorgeB)!
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