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Can start array but cannot mount disks

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Hello, after spending about 3 weeks messing with unraid and getting things setup i was pretty satisfied with the setup enough to go ahead and purchase a license. But today, i was trying to clean up some files by deleting videos on my zfs share and when id try deleting more than a few files (i say a few, i didn't try extensively but i could delete up to 5 files at once) my explorer would hang. This was done over smb share that i mapped on my windows pc. I gave it up to 30 minutes and no response trying to delete 400ish gb of files. Nothing on my unraid machine seemed alarming so i tried restarting it. When i get back to the dashboard and logged in i try to start array and it says array has started but still "mounting disks" and this goes on for at least an hour. And once i try to start the array i can't properly shutdown the machine. I am forced to hard shutdown/reboot. I have seen a couple threads say they deleted plugins until they found the culprit. I have tried uninstalling all plugins (except CA, appdata backup, and zfs master). Still same issue when i reboot and try to start array. I tried checking the safe mode option and force rebooting and the system says its in safe mode. Still same thing when i try starting array. I force reboot in safe mode again and this time try starting array in maintenance mode. Same result and each time i try to wait at least 10 minutes inbetween as the array would usually (when it was working) startup in less than a minute. I have diagnostics for each of my attempts and hoping someone can help point me to where i can look to fix this issue. I have also turned off smb, turned off docker, and ssh to try to minimize the amount of things that would interact with the zfs pool when being mounted. Things i have not done (but will do tomorrow if i don't find any other answer that works) update from 7.1.1 to 7.1.2 and try reseating all parts.

in_safe_mode_array_started_but_disks_not_mounted.zip restarted_in_safe_mode_array_started_in_maintenance_mode.zip array_started_but_disks_not_mounted.zip just_restarted_array_not_started.zip

Solved by JorgeB

  • Community Expert

Reboot, don't start the array, import the pool manually in read-only mode with zpool import -o readonly=on zfs, if that works, start the array, the pool will show unmountable, but the data should be under /mnt/zfs, see if you can access it and the rest works

  • Author

Rebooted, did the command and it had no output (im assuming means it worked). Started the array, it started but it says unmountable disk (as you said it would), and i see all my data under /mnt/zfs

  • Community Expert
  • Solution

If the array starts normally like that, I would backup and then recreate that pool

  • Author

Thank you, will wipe and recreate later today and let you know if i run into any issues!

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