January 25, 20251 yr I just want to make sure it really is this simple before I blow things up and have to come begging for help. I have 2x256GB NVMe sticks in a BTRFS RAID1 pool. Balance and Scrub have never been run on the pool. I have Docker and a few shares on the cache pool. The Mover is set to hourly. I know that's more aggressive than usual but I had a reason. I can adjust that if necessary. I have 2x512GB NVMe sticks I'll be upgrading to. I have had VM turned on in the past, but it's not currently on. Looks like I do this: https://docs.unraid.net/unraid-os/manual/storage-management/#replace-a-disk-in-a-pool Simply shut the system down, replace one of the drives, start it up, assign the new drive in the missing cache pool slot, format the new drive and let it be part of the pool. Let things settle down and then repeat the process for the other drive. Should I run the Balance or Scrub for BTRFS? Anything else I'm missing? Do I need to do anything post replacement to expand the space?
January 26, 20251 yr Community Expert Solution 19 hours ago, Bitbass said: format the new drive and let it be part of the pool. Let things settle down and then repeat the process for the other drive. Just to be clear, you only assign the new device, never format. Recommend posting the diags before doing just to config the pool profile/config is OK.
January 26, 20251 yr Author Because it's in the pool it'll just rebuild the pool. Makes sense. Thanks!
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