I received this error the other night via email from my unraid server:
cron for user root /sbin/fstrim -a -v | logger &> /dev/null
fstrim: /etc/libvirt: FITRIM ioctl failed: Input/output error
When I this the next day I logged in but my dockers have all disappeared. I tried rebooting, turning dockers on/off.
I attempted to run a Restore using a backup from a few days before the error using CABackupRestore, but when doing so rootfs (32G) fills up and then the system is unusable until I reboot via CLI.
This time when running the Restore I got the following via email:
Event: Fix Common Problems -
Subject: Errors have been found with your server ().
Description: Investigate at Settings / User Utilities / Fix Common Problems
Importance: alert
* **Rootfs file is getting full (currently 100 % used)**
* **Invalid folder cache contained within /mnt**
* **Invalid folder disk1 contained within /mnt**
* **Invalid folder disk2 contained within /mnt**
* **Invalid folder disk3 contained within /mnt**
* **Invalid folder disk4 contained within /mnt**
* **Invalid folder disk5 contained within /mnt**
* **Invalid folder disk6 contained within /mnt**
* **Invalid folder disk7 contained within /mnt**
* Blank TLD
unraid1-diagnostics-20220405-1626.zip