I remember after updating to one of the later versions I got flooded with alerts (a few emails an hour): Quota exceeded on dataset <…>/.system/cores. Used 97.86% (1002.13 MiB of 1 GiB) So I reverted back to the version I was using and waited for another update and alerts disappeared. I was using…

So one of the errors is: Quota exceeded on dataset Data/.system/cores How do I delete cores? There’s no such folder .system inside Data :confused: Do I need to enable something to see it? $ cd /mnt/Data/.system cd: no such file or directory: /mnt/Data/.system Update: Found it with $ /usr/sb…

[image] Karmalakas: Should I delete the whole .system maybe? My other data pool doesn’t have it at all and mountpoint says legacy :thinking: I wouldn’t advice removing the whole system dataset unless you really had to. I believe the cores dataset is mounted here: /var/db/system/cores

Would it be safe to use this? $ /usr/sbin/zfs destroy Data/.system/cores

Aren’t those core dumps? How often do core files get created? I’ve only ever had one core file in my entire time using FreeNAS and TrueNAS Core. Maybe it’s apt for a bug report?

[image] NugentS: Delete the cores How? I can’t cd to it as .system doesn’t exist on the datasat

[image] Alister: I can’t cd to it as .system doesn’t exist on the datasat Because there is no folder named “.system”. That’s the hidden dataset’s name. Datasets can be mounted to any path. The cores are found under /var/db/system/cores/

[image] winnielinnie: /var/db/system/cores/ There’s none at presnt TRUENAS-SCALE% pwd /var/db/system/cores TRUENAS-SCALE% sudo ls -la total 33 drwxr-xr-x 2 root root 2 May 20 01:34 . drwxr-xr-x 9 root root 9 Nov 3 2024 .. TRUENAS-SCALE% I managed to see some brieftly before it disappeared…

[image] Alister: is there any way to increase the quota? so I don’t keep getting the alerts - it was fixed but having it set at 1GiB seems to small Generally it’s fine. Corefiles are very compressible and you shouldn’t be generating them. Usually their presence in a stable release indicates: …

I’m also getting this issue periodically, Quota exceeded on dataset tank/.system/cores. Used 98.02% (1003.77 MiB of 1 GiB) - yet not on a pool that manages booting or anything. For me it seems to be qbit (?) which seems to stay relatively stable… although am monitoring whether it grows, or whether…

Quota exceeded on dataset <...>/.system/cores

TrueNAS General

awalkerix May 20, 2025, 1:10am 11

Generally it’s fine. Corefiles are very compressible and you shouldn’t be generating them. Usually their presence in a stable release indicates:

broken custom application
failing boot device
unexpected OS changes

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Quota exceeded on dataset <...>/.system/cores

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