December 31, 20241 yr Dec 31 03:37:23 BlackBox emhttpd: Unmounting disks... Dec 31 03:37:23 BlackBox emhttpd: shcmd (157): /usr/sbin/zpool export -f zfs_cache Dec 31 03:37:23 BlackBox root: cannot export 'zfs_cache': pool is busy Dec 31 03:37:23 BlackBox emhttpd: shcmd (157): exit status: 1 Dec 31 03:37:23 BlackBox emhttpd: Retry unmounting disk share(s)... Dec 31 03:37:28 BlackBox emhttpd: Unmounting disks... Dec 31 03:37:28 BlackBox emhttpd: shcmd (158): /usr/sbin/zpool export -f zfs_cache Dec 31 03:37:28 BlackBox root: cannot export 'zfs_cache': pool is busy Dec 31 03:37:28 BlackBox emhttpd: shcmd (158): exit status: 1 Dec 31 03:37:28 BlackBox emhttpd: Retry unmounting disk share(s)... Dec 31 03:37:33 BlackBox emhttpd: Unmounting disks... Dec 31 03:37:33 BlackBox emhttpd: shcmd (159): /usr/sbin/zpool export -f zfs_cache Dec 31 03:37:33 BlackBox root: cannot export 'zfs_cache': pool is busy Dec 31 03:37:33 BlackBox emhttpd: shcmd (159): exit status: 1 Dec 31 03:37:33 BlackBox emhttpd: Retry unmounting disk share(s)... Dec 31 03:37:38 BlackBox emhttpd: Unmounting disks... Dec 31 03:37:38 BlackBox emhttpd: shcmd (160): /usr/sbin/zpool export -f zfs_cache Dec 31 03:37:38 BlackBox root: cannot export 'zfs_cache': pool is busy Dec 31 03:37:38 BlackBox emhttpd: shcmd (160): exit status: 1 Dec 31 03:37:38 BlackBox emhttpd: Retry unmounting disk share(s)... Dec 31 03:37:43 BlackBox emhttpd: Unmounting disks... Dec 31 03:37:43 BlackBox emhttpd: shcmd (161): /usr/sbin/zpool export -f zfs_cache Dec 31 03:37:43 BlackBox root: cannot export 'zfs_cache': pool is busy Dec 31 03:37:43 BlackBox emhttpd: shcmd (161): exit status: 1 Dec 31 03:37:43 BlackBox emhttpd: Retry unmounting disk share(s)... Dec 31 03:37:48 BlackBox emhttpd: Unmounting disks... Dec 31 03:37:48 BlackBox emhttpd: shcmd (162): /usr/sbin/zpool export -f zfs_cache Dec 31 03:37:49 BlackBox root: cannot export 'zfs_cache': pool is busy Dec 31 03:37:49 BlackBox emhttpd: shcmd (162): exit status: 1 Dec 31 03:37:49 BlackBox emhttpd: Retry unmounting disk share(s)... Dec 31 03:37:54 BlackBox emhttpd: Unmounting disks... Dec 31 03:37:54 BlackBox emhttpd: shcmd (163): /usr/sbin/zpool export -f zfs_cache Dec 31 03:37:54 BlackBox root: cannot export 'zfs_cache': pool is busy Dec 31 03:37:54 BlackBox emhttpd: shcmd (163): exit status: 1 Dec 31 03:37:54 BlackBox emhttpd: Retry unmounting disk share(s)... Dec 31 03:37:59 BlackBox emhttpd: Unmounting disks... Dec 31 03:37:59 BlackBox emhttpd: shcmd (164): /usr/sbin/zpool export -f zfs_cache Dec 31 03:37:59 BlackBox root: cannot export 'zfs_cache': pool is busy Dec 31 03:37:59 BlackBox emhttpd: shcmd (164): exit status: 1 Unraid 7.0.0-rc.2 infinity unmount disks for Array stop operation. I can only reboot system, but can not stop Array. Can anyone help? I also notice that one XFS 2TB nvme as pool worked much better without any issues than current raidz1 configuration 3x2TB drives. On XFS: Speed was better and overall system responsibility was better, also I have never seen such issues with unmounting. Edited January 2, 20251 yr by d3m3zs
December 31, 20241 yr Community Expert Something is using that pool start by seeing if you can stop if VM and Docker services are disabled.
December 31, 20241 yr Author 3 hours ago, JorgeB said: Something is using that pool start by seeing if you can stop if VM and Docker services are disabled. VM and Docker are stopped. Even after reboot with turned off both services I couldn’t again stop array. Only one workaround- turn off auto start array and reboot system. If it is possible to fix, according to diagnostics log - great, but I temporarily splitted raidz1 pool to 3 separate pools formatted in XFS and have zero issues, very responsive system, very fast docker container installation and also no problems with stopping array. Absolutely the same config and services, it seems something is wrong with ZFS implementation in Unraid.
December 31, 20241 yr Community Expert 10 minutes ago, d3m3zs said: it seems something is wrong with ZFS implementation in Unraid. What you are seeing is not normal, a lot of users have multiple zfs pools without that issue, including myself, could still be a corner case bug, or something specific to your config, you can try this to see if it gives any clues: https://forums.unraid.net/topic/41196-open-files-plugin-can-help-with-troubleshooting-why-server-wont-shut-down/
December 31, 20241 yr Author 1 minute ago, JorgeB said: What you are seeing is not normal, a lot of users have multiple zfs pools without that issue, including myself, could still be a corner case bug, or something specific to your config, you can try this to see if it gives any clues: https://forums.unraid.net/topic/41196-open-files-plugin-can-help-with-troubleshooting-why-server-wont-shut-down/ XFS - no issues, ZFS has issues. For me it is pretty clear and I understand that "it is not normal". I am asking here because I need solution, I like haave bigger pool than splitted by few separate. Also on reddit I see many posts when users switched back to XFS even for pool after all experiments, so I am not alone. Can anyone check my diagnostic logs to provide solution? I use "Open Files Plugin" there is nothing extraordinary and all can prevent shutdown.
December 31, 20241 yr Community Expert 3 hours ago, d3m3zs said: Can anyone check my diagnostic logs to provide solution? Unfortunately, the diags only show that the pool is in use, not what is using it.
December 31, 20241 yr Author On 12/31/2024 at 6:35 PM, JorgeB said: Unfortunately, the diags only show that the pool is in use, not what is using it. Ok, but what can affect it? I already stopped a few services - didn`t help. Docker is already stopped. And removed a few plugins - also didn`t help. Edited January 2, 20251 yr by d3m3zs
January 1, 20251 yr Community Expert Keep docker and VM services disabled, boot in safe mode and retest
January 1, 20251 yr Author Solution 10 hours ago, JorgeB said: Keep docker and VM services disabled, boot in safe mode and retest Thank you! Safe mode helped. I discovered that the problem was related to one or more of my installed plugins. By rebooting into normal mode and removing plugins based on their last update date, I resolved the issue. In attachment picture I highlighted plugins that I removed. Although I haven't pinpointed the exact culprit, I suspect 'System Statistics' might be involved. I don`t want to debug it now, because parity sync is running.
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