Error : Pool I/O is currently suspended

Containers in a host are not accessible. ‘lxc list’ command is working fine and all containers status are running. However, when i tried ‘lxc exec container’, it hangs forever. Another command i tried ‘lxc snapshot container’ throw an error saying ‘Pool I/O is currently suspended’. I am using ZFS and I wonder this may be the issue with ZFS.

Any idea what might be the cause of this? and the solutions.

Thanks for your advise.

That error doesn’t come from LXD itself, it was most likely forwarded from ZFS.

The most common source of this error would be if your filesystem is somehow full, preventing ZFS from increasing the pool size.