March 30, 20251 yr I'm having two separate issues: 1st - My 2 device "appcache". On the Main page it shows both NVME devices in the pool, however only one appears to be in use nvme0n1, the second nvme1n1 one has very few reads or writes. On the settings page Pool Device Status 1 shows devid:1 2 is nvme0n1p1 Not sure if the simple fix is to hit the RESET button. I tried to Balance the pool and ran the Scrub. No help. I stopped the Array, attempted to remove one device (nvme1n1) from the appcache pool and re-add it. The problem here is I can't seem to find a way to start the array up with only one device in the pool and UNRAID starts warning me that a device is missing from the pool. Issue 2: Drives never spin down, is this some sort of issue with my HBA? I can't even manually spin them down. Not sure they ever did spin down. Attached is my diagnostics file. Any and all help is appreciated. unraid-diagnostics-20250330-0840.zip
March 30, 20251 yr Community Expert Your domains and isos shares have files on the array. This could be related to your spindown issue. Your system share has files on both pools. Could be an unnecessary complication unless you know why you want it that way and how to avoid those complications. Not clear what if any issues with appcache pool, except for the obvious fact that you have removed a disk from it.
March 30, 20251 yr Author The domains and isos thing was weird don't know why/ how that got implemented. Fixed by moving them to appcache. System is consolidated on appcache now as well, that weird configuration was not intentional. I've included a few screen shots to show what I mean. On the one hand UNRAID is showing both devices in a pool (appcache). But in settings one device is missing.
March 31, 20251 yr Community Expert Solution To fix the pool, with the array running type: btrfs dev remove missing /mnt/appcache When that's done, stop the array and reimport the pool with just the single remaining device: on main click on the first device for that pool and then "remove pool" back on main, create a new pool with the same name and 1 slot assign the pool device, leave the filesystem set to auto start the array to import the pool If all looks normal you can now add the other device to the pool to create a mirror.
April 1, 20251 yr Author I got deeep in the weed with btrfs command line arguments, I think I was pretty close to fixing it but this honestly worked perfectly and quickly. Thanks so much!
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