Successful login with iscsiadm on target still doesn't create block device
Solution 1:
change name iqn.2010-12.nl.ytec.arbiter:arbiter.lun1
to iqn.2010-12.nl.ytec.arbiter:arbiter.blabla.lun1
change name iqn.2010-12.nl.ytec.arbiter:arbiter.lun1
to iqn.2010-12.nl.ytec.arbiter:arbiter.blabla.lun1