netdata core dumps to /usr/local/etc
if netdata crashes and creates a core dump file, it creates the core files in /usr/local/etc/netdata/
On TrueNAS HA systems, /usr/local/etc/ partition is tmpfs and is only 34M in size. This cause the file system to fill up entirely, which prevents things like iscsi/afp/smb to generate a config properly because the partition is out of space.
The location in which netdata core dumps it's stack needs to be changed.