It is a Tumbleweed requirement to move database file out of /etc. Yes, I did assume that /var/lib/iscsi would be just as writable at target setup time as /etc/iscsi was. Note that iscsi configuration file is still in /etc/iscsi. Also, during installation, any existing database files in /etc/iscsi/nodes are copied to /var/lib/iscsi/nodes I believe (if that matters).